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How are Reading Disabilities Operationalized in Spain? A Study of Practicing School Psychologists

González-Valenzuela MJ1, Soriano-Ferrer M2, Delgado-Ríos M1 and Félix-Mateo V2

1Developmental and Educational Psychology, University of Málaga, Spain

2Educational Psychology, University of Valencia, Spain

Corresponding Author:
Myriam Delgado-Ríos
University of Malaga
Developmental and Educational Psychology, Málaga, Spain
Tel: +34952132484
E-mail: [email protected]

Received date: March 31, 2016; Accepted date: June 23, 2016; Published date: June 30, 2016

Citation: González-Valenzuela MJ, Soriano-Ferrer M, Delgado-Ríos M, et al. How are Reading Disabilities Operationalized in Spain? A Study of Practicing School Psychologists. J Child Dev Disord. 2016, 2:3.doi: 10.4172/2472-1786.100031

 
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Abstract

This study examines how 115 Spanish school psychologists rated the importance of certain criteria for identifying reading disabilities (RD), and compares their views with those of their US counterparts. The sample comprised school psychologists primarily between 30 and 39 years of age who had been in professional practice for less than ten years. The survey questions followed those used by Spanish practicing school psychologists ascribe the greatest importance to the discrepancy between listening and reading comprehension and to the IQ-achievement discrepancy criterion, while US school psychologists place greater emphasis on response to intervention (RTI) criteria and cognitive processing difficulties when operationalizing RD. Possible reasons for these differences are discussed. Differences between Spanish and US school psychologists are also observed in prioritizing which exclusion criteria were most important to consider when attempting to identify RD, even though the most popular choices were mental retardation and inadequate instruction in both samples.

Introduction

In recent decades, the search for consensus regarding the conceptual definition of learning disabilities (LD) has focused primarily on what they are not rather than on what they actually are. In other words, the emphasis has been on establishing a set of exclusion criteria that could be applied when seeking to identify LD [1,2]. This is reflected in the internationally recognized definition proposed by the National Joint Committee on Learning Disabilities [3] and backed by the ICD-10 [4] and the DSM-5 [5], a definition that is based predominantly on exclusion and discrepancy based criteria, without specifying how these should be quantified.

Research in this area has highlighted the wide range of models that may be used to identify and assess LD and, in particular, reading disabilities (RD), the most common kind of LD and the focus of this paper. The way RDs have been identified can be seen to evolve over recent decades, from diagnostic-criteria based models to models based on response to intervention. Diagnosticcriteria based models have been the most popular for assessing RD, most notably those based on the discrepancy concept. The model that has proved most enduring internationally is based on the criterion of IQ-achievement discrepancy [6,7]. This model affirms that subjects with RD are characterized by a discrepancy between IQ and achievement; in other words, they have normal IQ but their achievement is low. Some authors also have suggested that the discrepancy between listening comprehension and achievement would make a better criterion, basing their argument on the limited relevance of IQ to the diagnosis of RD [8-12]. However, in recent years, other diagnostic criteria for identifying RD have been proposed, quite distinct from those based on discrepancy. Similarly, suggest that low achievement scores could provide a sufficient basis for identifying RD, as the focus should be on the need for intervention, not on the assessment of IQ or the IQ-achievement discrepancy [13]. Other authors have focused their attention on the value of low scores in phonological awareness [14-17], or in cognitive processes [18-20] as criteria for diagnosing RD. A recent alternative to diagnostic-criteria based models is what is known as response to intervention (RTI), a model that likewise shifts the emphasis away from the ability-achievement discrepancy [21-33]. In this model, the child with RD is detected or identified by his or her immediate response to written instruction [24,34], where performance is severely low and there is an unexpected early learning difficulty shown by failure in their response to a standardized instruction [26,29,35,36].

Despite these suggested alternatives to the IQ-achievement discrepancy as a criterion for defining RD, it is not clear whether there is consensus over which criteria might best replace the discrepancy requirement. In an attempt to address this issue [2], surveyed the opinions of experts regarding the key components of an operational definition of RD for use in practice; their reason for taking this approach was because expert opinion had not been considered and separate definitions may exist for research and practice. The survey was answered by editorial board members of four journals on learning disabilities and reading. The members who answered the survey were university professors with doctorates, graduates in Special Education, Psychology or Medicine, who are active researchers in RD. The most highly rated exclusion criteria were mental retardation, inadequate instruction and sensory deficits. Only 30% of those surveyed believed that the IQ-reading achievement discrepancy should be a marker. Three components were selected by over two-thirds of the respondents: reading achievement, phonemic awareness and treatment validity. It should also be noted that these results must be interpreted with caution, given that the survey does not consider or specify the importance of language characteristics in explaining RD, as is established in some studies. Namely, the predictive value of phonological processing has been shown to differ according to the consistency of the language in question, being greater in more consistent languages than in less consistent ones [37-42].

It is also important to note that in educational practice the operational definition of RD also varies from one country to another. In the USA, this definition has undergone a gradual and critical change over the last decade or so. Specifically, in 2002 the Commission on Excellence in Special Education (US Department of Education, Office of Special Education and Rehabilitation Services) proposed, with the agreement of the National Association of School Psychologists [43], that the IQ-achievement discrepancy model should be abandoned in favor of RTI. The Individuals with Disabilities Education Improvement Act [44] also recognized RD as a category of disability that was eligible for special education services, linking the concept more closely to a research base and the RTI model and moving away from an IQ-achievement discrepancy criterion. In Australia, this move away from IQ-achievement discrepancy models occurred earlier than in the USA [45,46], while countries such as the United Kingdom [47], Japan [48] and Germany [49] either never adopted such an approach to the identification of RD or were quicker to shift towards a criterion focused on the need for remedial education [46].

Machek and Nelson [1] concluded that despite attempts for the better part of three decades, there has been little progress in narrowing the gap between the conceptual and operational definitions of RD. Thus, although there is some consensus among professionals over the need to align definitions, heated debate continues on the question of how reading disabilities should be measured in practice. These authors also stressed the importance of soliciting the opinions of school psychologists, who are responsible for identifying RD in the actual school setting. In particular, they argued that the attitudes, perceptions and beliefs of school-based professionals should be considered as part of any attempt to advance our understanding of how best to identify RD, especially in relation to new proposals such as RTI. To this end, they examined practicing school psychologists’ perceptions of the various operational components that should be included in any definition of RD, as well as the exclusion criteria they believed were most important when making an RD diagnosis. Their findings differed somewhat from those reported by Speece and Shekitka [2]. Specifically, the criteria regarded as most important by the school psychologists surveyed were RTI, phonological awareness, cognitive processing and the IQ-achievement discrepancy, while the exclusion criteria ascribed the greatest importance were inadequate instruction and mental retardation. These differences between the two studies could be the result of the changes proposed by the IDEIA (2004). In the context of research on the views of educational professionals regarding key criteria, a study of Australian school psychologists by [46] found that although 81% of them agreed that IQ tests were useful in the process of identifying RD, they used them not to assess the IQ-achievement discrepancy but because parents and teachers wanted this kind of information about a child’s possible intellectual problems.

Given that the conceptual definition of RD has also undergone changes in our country, Spain, we wish to understand the impact that this has had on educational professionals. Briefly, the situation in Spain is as follows. The education act passed in 2006 [50], included and differentiated children with so-called specific learning disabilities as a distinct category within the wider pool of children regarded as needing special educational support (referred to in Spain by the initials NEAE). These legislative changes ushered in recognition of specific learning difficulties, such as RD, and of the educational needs of the children who presented them. However, the 2006 education act did not offer an operational definition of such difficulties, and left the responsibility for establishing diagnostic criteria to regional authorities. Consequently, and given that in Spain the school psychologists decide which children should receive special educational services in state schools, it seems important to examine the relative emphasis they place on different criteria when seeking to identify RD, and also to determine whether, in practice, their approach has changed as a result of advances in research. Depending on the findings that emerge, it may be helpful to propose guidelines for improving their work.

In light of the above, the present study had two objectives: First, to examine the importance ascribed by Spanish school psychologists to different criteria for identifying RD, and second, to compare their views with those of the school psychologists surveyed by Machek and Nelson [1]. In this way we hope to shed light on the effect of changes in the conceptual definition of RD on educational practice in Spain, and to examine the extent to which the effects observed are similar to those reported in the USA [1].

Method

Participants

The sample comprised 115 Spanish school psychologists (95 women and 20 men), who voluntarily responded to the survey. The total initial population of these professionals could not be known because there is no single register of all school psychologists in Spain. The criteria for selecting participants are described in the procedure. Information on certain sample characteristics (e.g., age, level of education) was collected under categories, as in the study [1], in order to establish meaningful comparisons.

The majority were women (X2=48.91, p<0.05), mostly between the ages of 30 and 39 years (X2=45.48, p<0.05) and having completed their studies during the period 2001-2012 (X2=16.37, p<0.05). They were well distributed across different geographical regions of the country (X2=5.34, p>0.05). Significant differences were observed in terms of how long they had been practicing (the majority for fewer than 10 years and a minority for more than 30; M=15.54, SD=9.6; X2=33.83, p<0.05), the type of school where they worked (the majority in the state system; X2=43.83, p<0.05), their academic qualifications (most did not have PhDs; X2=74.73, p<0.05) and the number of special courses on RD they had completed (the majority had completed fewer than 5 courses; M=5.26, SD=7.14; X2=34.51, p<0.05). Table 1 presents a description of the sample.

  N n=115 %
Gender
Female
Male
95
20
82.6
17.4
Age (years)
20-29
30-39
40-49
50-59
60-69
6
39
27
6 6

5.2
33.9
23.5
32.2
5.2

Qualifications
Doctorate
No Doctorate
15
100
13.0
87.0
Year qualified
1980 or earlier
1981-1990
1991-2000
2001-2012
10
34
35
36
8.7
29.6
30.4
31.3
Type of school
State system
Publicly-funded private
93
22
80.9
19.1
Area of Spain
North
South
Central
32
50
33
27.8
43.5
28.7
Years practicing
<10
11-20
21-30
>30
53
29
23
10
46.1
25.2
20.0
8.7
Courses completed
in RD
<5
>5
89
26
77.4
22.6

Table 1: Description of the sample.

In terms of the extent to which their academic training equipped them to identify RD, 50.4% reported feeling relatively well equipped, while 40% said they felt largely unprepared for this task. When asked how prepared they felt as a result of attending specific courses on RD, 44% said they were relatively well prepared and 32.2% felt largely unprepared.

Our sample of school psychologists was similar in many respects to that surveyed by Machek and Nelson [1], since the latter was also composed of more women (75.3%) than men (24.7%), most did not have a doctoral degree (73.4%), and the sample was geographically well-distributed. However, the two samples differed in age, since the majority (52%) of the US school psychologists were over age 50. These data could not be compared statistically as specific information was not available for the sample in the reference study. A comparison of ethnicity across the two samples was not performed since all the Spanish school psychologists shared the same ethnic background. Nor could comparisons be made with regard to the number of years since qualification, the type of school in which the psychologists were employed, the number of years practicing or the number of specific courses on RD they had completed, since this information was not collected in the study [1].

Instruments

The instrument consisted of two parts. The first gathered demographic, professional, and academic information about the participants. This information referred to gender, age, degree, year of degree, type of school in which they were employed, geographical location, years of practice and training received on RD.

The second took the form of an earlier survey conducted by Speece and Shekitka [2], and which was also used by Machek and Nelson [1]. The translation and adaptation of Speece and Shekitka’s [2] original survey into Spanish was done in accordance with the guidelines described [51,52]. This survey covered issues relating to the identification of RD and included 13 definitional items that sought to gather the views of school psychologists regarding different operational components of RD and the need to consider different exclusion criteria when defining RD.

Nine items assessed the degree of agreement/disagreement with different criteria for identifying RD, using a 5-point Likert-type scale (strongly disagree, disagree, agree, strongly agree, don’t know). These criteria were IQ cut-off score (cut-off score established on the intelligence test), treatment validity/RTI (does not respond to well-planned, well-implemented general education Reading instruction, but does respond to individualized instruction), discrepancy between oral and written comprehension, difficulties in cognitive processing (e.g., memory, attention), phonological awareness cut-off score (cut-off score established on the test that assesses the ability to orally manipulate the sounds in words), reading achievement cut-off score (cut-off score established on the test of reading achievement), discrepancy between intelligence and reading achievement, discrepancies between achievement in different areas (reading vs. mathematics) and measurements based on the curriculum (not belonging to the measures taken in the response to treatment model). Two items asked which criteria were considered the first and the second most important for respondents. Finally, two items assessed if they considered that any exclusion criteria should be used together with the defining criteria for identifying RD, and if so, what these criteria were. The possible exclusion criteria from which to choose were mental retardation, emotional/behavioral disability, sensory deficits, economic disadvantage, cultural difference, inadequate instruction, and other criteria.

Procedure

Given that in Spain there is no single register of school psychologists, a number of different procedures were used to collect information. First, the heads of the school psychological services in some of the regional educational authorities provided contact information (telephone numbers and e-mail addresses) for their staff, after receiving a written request that explained the research aim. The survey and a cover letter explaining the purpose of the research was then sent to these school psychologists. The coordinators for each school and/or team were then contacted by telephone so as to inform them about the study and the fact that the school psychologists had been sent the survey by e-mail. They were asked to contact their corresponding school psychologist and encourage them to complete and return the survey. Thirteen professionals responded via this route.

In a separate procedure, for some of the regional educational authorities, the survey and a cover letter explaining the purpose of the research was sent in paper format by ordinary mail to the heads of the school psychological services, and they were asked to distribute the material to the coordinators of schools and/or staff teams for whom they were responsible. These coordinators handed out the material during a scheduled staff meeting, with the aim that the school psychologists would complete the survey. A total of 71 completed surveys were returned through this approach.

A third procedure involved the president of the Spanish Confederation of School Psychological and Counseling Services (in Spanish, COPOE), who sent all members an e-mail attaching the survey and the cover letter, and explaining the purpose of the research. Twenty professionals responded through this route.

Finally, the president of the COPOE also distributed copies of the survey among those attending the IV National Meeting of School Psychologists and Counselors. A further 11 professionals responded to this initiative.

Data analysis

In line with the approach taken [1], and in order to be able to compare the results from Spain with those from the USA, the survey responses were categorized into three levels (strongly agree/agree, strongly disagree/disagree, and don’t know).

Percentages were calculated for each type of response for each of the criteria used to identify RD that was considered in the study [1], the aim being to determine similarities and differences between the two samples. A statistical analysis of differences could not be performed as raw data were not available for the US sample.

Results

Definitional criteria

Answers from the spanish respondents

When presented with the list of potential criteria for identifying specific RD, the proportion of Spanish school psychologists who strongly agreed or agreed with the need to use the criterion of IQ cut-off score was 54.8%; the RTI criterion, 53.9%; the criterion of discrepancy between listening and reading comprehension, 81.7%; cognitive processing difficulties, 67%; phonemic awareness cut-off score, 68.7%; Reading achievement cut-off score, 62.6%; IQ-achievement discrepancy, 74.8%; intra-individual discrepancy, 60%; and curriculum-based measurement, 53% (Table 2). Percentages of strongly agree/agree ranged between 81.7% and 53%. The criterion which held the greatest agreement among Spanish respondents was the discrepancy between listening and reading comprehension (81.7%), followed by the IQ-achievement discrepancy, the phonemic awareness cut-off score, cognitive processing difficulties, the reading achievement cut-off score and intra-individual discrepancy criteria (between 74.8% and 60.0%). The lowest percentages of strong agreement/ agreement corresponded to the IQ cut-off score, the RTI criterion and curriculum-based measurement (between 54.8% and 53%).

Criterion Strongly agree/agree Machek and Nelson Strongly disagree/disagree Machek and Nelson Don’t Know Machek and Nelson
IQ cut-off score 54.8 (63) 34.3 (188) 19.1 (22) 61.2 (336) 26.1 (30) 2.0 (11)
Treatment validity/RTI 53.9 (62) 81.1 (445) 24.3 (28) 16.1 (88) 21.7 (25) 2.6 (14)
Discrepancy between listening and reading comprehension 81.7 (94) 53.2 (292) 6.1 (7) 39.0 (214) 12.2 (14) 6.7 (37)
Cognitive processing difficulties 67.0 (77) 77.6 (426) 23.5 (27) 20.2 (111) 9.6 (11) 1.6 (9)
Phonemic awareness cut-off score 68.7 (79) 75.6 (415) 3.5 (4) 20.6 (113) 26.1 (30) 3.1 (17)
Reading achievement cut-off score 62.6 (72) 66.5 (365) 2.6 (3) 30.5 (167) 34.8 (40) 1.6 (9)
IQ-achievement discrepancy 74.8 (86) 61.9 (340) 13.0 (15) 35.0 (192) 12.0 (14) 2.4 (13)
Intra-individual discrepancy 60.0 (69)   22.6 (26)   17.4 (20)  
Curriculum-based measurement 53.0 (61) 73.3 (402) 22.6 (26) 21.2 (116) 24.3 (28) 4.4 (24)

Table 2: Percentage of strongly agree/agree and strongly disagree/disagree responses for each of the RD criteria, showing a comparison between the present survey and the Machek and Nelson survey [1].

Table 2 also shows that the rate of strongly disagree/disagree responses among Spanish school psychologists for the identification criterion IQ cut-off score was 19.1%; for the RTI criterion, 24.3%; for the criterion Discrepancy between listening and reading comprehension, 6.1%; for cognitive processing difficulties, 23.5%,; for the phonemic awareness cut-off score, 3.5%; Reading achievement cut-off score, 2.6%; IQ-achievement discrepancy, 13%; intra-individual discrepancy, 22.6%; and curriculum-based measurement, 22.6%. Percentages ranged between 24.3% and 2.6%. The criteria for defining RD that produced the highest levels of strong disagreement/disagreement were treatment validity/ RTI, cognitive processing difficulties, intra-individual discrepancy, curriculum-based measurement and the IQ cut-off score (between 24.3% and 19.1%), followed by the IQ-achievement discrepancy and the discrepancy between listening and reading comprehension (13% and 6.1%, respectively). The lowest levels of strong disagreement/disagreement corresponded to the criteria phonemic awareness cut-off score and the reading achievement cut-off score (3.5% and 2.6%, respectively).

The results also show that, for most of the criteria used to identify RD, a high proportion of Spanish school psychologists answered ‘don’t know’ when asked to rate their importance (Table 2). The highest rates of ‘don’t know’ responses, ranging between 34.8% and 21.7%, corresponded to the criteria reading achievement cutoff score (34.8%), IQ cut-off score (26.1%), phonemic awareness cut-off score (26.1%), curriculum-based measurement (24.3%) and treatment validity/RTI (21.7%). These were followed by the discrepancy between achievement scores in different academic areas (17.4%), the discrepancy between listening and reading comprehension (12.2%), the IQ-achievement discrepancy (12%), and, finally, cognitive processing difficulties (9.6%) (Table 2). The majority of subjects who selected this response category, on some item, had anywhere from 13 to 17 years of experience, depending on the item (M=16, SD=9.6), did not have a Ph.D. (between 70 and 92%, depending on the item) and they had completed an average of 5.27 courses on RD (between 2 and 6 courses, depending on the item).

Comparing the answers from the Spanish and American respondents

The data presented in (Table 2) show results obtained in the study [1] and those obtained from Spanish respondents. For the criteria listening and reading comprehension, IQ cut-off score and IQ-achievement discrepancy, the Spanish psychologists showed 28.5%, 20.5% and 12.9% greater agreement, respectively, than did their US counterparts. However, the Americans showed 27.2%, 20.3% and 10.6% greater agreement, respectively, on the criteria treatment validity/RTI, curriculum-based measurement and cognitive processing difficulties. The smallest differences between the two samples corresponded to the criteria reading achievement cut-off score and phonemic awareness cut-off score (differences of 6.9% and 3.9%, respectively) (Table 2).

In addition, the level of disagreement from Spanish psychologists for the criteria treatment validity/RTI, cognitive processing difficulties and curriculum-based measurement was 8.2%, 3.3% and 1.4% greater, respectively, than the corresponding figures for their US counterparts. However, the latter showed 42.1%, 32.9% and 27.9% greater disagreement, respectively, for the criteria IQ cut-off score, listening and reading comprehension discrepancy and reading achievement cut-off score (Table 2).

Moreover, these results show that Spanish school psychologists were much more likely to answer ‘don’t know’ when asked to rate the importance of a criterion for identifying RD than were their US counterparts. Table 2 reveals that the percentage of Spanish psychologists responding ‘don’t know’ was considerably higher for all the criteria considered, most notably for reading achievement cut-off score (a difference of 33.2% with respect to the US survey), followed by IQ cut-off score (24.1%) and phonemic awareness cut-off score (23%); then treatment validity/RTI and CBN (19.1 and 19.9%, respectively); and finally, IQ-achievement discrepancy (9.6%), cognitive processing difficulties (8%) and discrepancy between listening and reading comprehension (5.5%) (Table 2).

Finally, in relation to the diagnostic criteria, responses from the Spanish school psychologists were rather evenly distributed among the response options. When the Spanish respondents selected more than one diagnostic criteria, first place was given to IQ-achievement discrepancy (17.4% of respondents), discrepancy between listening and reading comprehension (13.9%) and cognitive processing difficulties (11.3%). For the second most important criterion, the Spaniards selected reading achievement cut-off score (13%), phonemic awareness cut-off score (12.2%) and discrepancy between listening and reading comprehension (11.3%). This contrasts with the views of the US school psychologists surveyed by Machek and Nelson [1], where the top three choices for the most important criterion were treatment validity (32.8%), phonemic awareness cut-off score (16.9%) and cognitive processing disabilities (13.8%).

Exclusion criteria

When asked about the use of different exclusion criteria when identifying RD, 67.8% of Spanish school psychologists said that exclusion criteria should be included in the definition of RD, whereas 30.4% felt that no such criteria should be used. Most of this group held no doctorate (approximately 85%), they had an average of 15 years of practice and had completed an average of about 5 training courses in RD.

Certain differences are observed in how the two samples prioritize exclusion criteria, although both samples concur in giving high priority to mental retardation and inadequate instruction. Table 3 shows that the three exclusion criteria regarded as most important by the Spanish psychologists were mental retardation, sensory deficits and inadequate instruction, with less importance ascribed to emotional/behavioral disability, cultural differences and economic disadvantage.

Criterion Current sample (%) Machek and Nelson (%)
Mental Retardation 60 66.5
Sensory Deficits 47.8 29.3
Inadequate Instruction 43.5 67.6
Emotional/Behavioral Disability 33.9 26.2
Cultural Differences 32.2 34.4
Economic Disadvantage 28.7 25.5

Table 3: Most important exclusion criteria chosen by the psychologists surveyed.

The exclusion criteria regarded as most important by US school psychologists were inadequate instruction and mental retardation, with less weight given to cultural differences, sensory deficits, emotional/behavioral disability and economic disadvantage (Table 3).

In both the Spanish and US surveys, mental retardation was the most widely endorsed exclusion criterion, although the percentage was slightly higher (by 6.5%) in the study [1]. The least frequently endorsed exclusion criterion in both surveys was economic disadvantage, although in this case the percentage was slightly higher (by 3.2%) in our study. The remaining exclusion criteria were endorsed by varying proportions of Spanish and US school psychologists. The greatest difference in the rate of endorsement corresponded to inadequate instruction as an exclusion criterion (24.1% higher among US psychologists), followed by the differences for sensory deficits, emotional/ behavioral disability and cultural differences (differences between the Spanish and US samples between 18.5% and 2.2%).

Discussion

The aim of this study was to examine the importance that Spanish school psychologists ascribe to certain criteria for identifying RD and to compare their views with those of the US school psychologists surveyed by Machek and Nelson [1].

Results show that the criteria most commonly endorsed by Spanish school psychologists were the discrepancy between listening and reading comprehension and the IQ-achievement discrepancy. The greatest differences between the two samples in the agreement percentage for criteria for identifying RD corresponded to the discrepancy between listening and reading comprehension, IQ cut-off score and IQ-achievement discrepancy (endorsed by a higher percentage of Spanish school psychologists) and treatment validity/RTI (endorsed by a higher percentage of US psychologists). Regarding disagreement with proposed criteria, the Spanish respondents yielded higher percentages for treatment validity/RTI and cognitive processing difficulties as criteria for identifying RD. In this response category, the greatest differences between the two samples were observed for the IQ cut-off score, listening and reading comprehension discrepancy and reading achievement cut-off score (all endorsed more frequently by US psychologists), as well as for the criteria treatment validity/RTI, cognitive processing difficulties and curriculum-based measurement (all endorsed more frequently in the Spanish sample). The analysis also shows that the percentage of Spanish psychologists responding ‘don’t know’ was considerably higher than the corresponding figure in the US survey for all the criteria considered, most notably for the reading achievement cut-off score; the lowest rate of don’t know’ answers among Spanish psychologists corresponded to the criterion cognitive processing difficulties. Another difference between the two surveys was observed in relation to the criterion regarded as most important for identifying RD: the criterion most widely endorsed by Spanish school psychologists was the IQachievement discrepancy, as opposed to treatment validity/RTI in the sample of US psychologists. As regards exclusion criteria that should be applied when identifying RD, both the Spanish and US samples emphasized mental retardation and inadequate instruction, in line with the findings of Speece and Shekitka [2]. Economic disadvantage was the least frequently endorsed exclusion criterion in both the Spanish and US surveys.

Our results highlight the range of criteria that may be used by school psychologists to identify difficulties in learning to read, and show that the importance ascribed to the various criteria differs across countries. A number of reasons may be responsible for these differences, such as recent changes in the conceptual definition and how it is approached or applied in professional practice, the influence of language characteristics in explaining these problems, and the respondent’s professional experience or level of education, to name a few.

In the USA, until recently, children with specific learning difficulties (SLD) were identified on the basis of the IQ-achievement discrepancy, which involved comparing their intellectual ability with their academic performance. However, the value of this approach to defining and identifying children with LD was questioned by various researchers [13,22-24,26-31,33]. This was given legislative support in 2004 through the Individuals with Disabilities Education Improvement Act [44], which established the use of a response to intervention (RTI) approach in professional practice as an alternative to the IQ-achievement discrepancy [35]. In the USA this has led to a considerable shift in the way in which LD are conceptualized and identified, and has brought the conceptual and operational definitions much closer together. The RTI model has become increasingly popular in the years since, and now features prominently in many training programs for school psychologists [53-55]. As already noted in the introduction to this paper, this shift in emphasis occurred much earlier in countries such as Australia, the United Kingdom, Japan and Germany, where the IQ-achievement criterion was either never adopted or was more swiftly abandoned as the basis for identifying LD [46-49], being replaced with a criterion that considered the need for remedial education.

It is also worth noting that in Spain neither general nor specific LD were recognized as problems that required special educational attention prior to the education act that was passed in 1990 [56]. Under this act, LD began to be considered as a broad category of difficulties within the wider framework of special educational needs (SEN). Children were classified as having SEN if their academic achievement was below what would be expected for their age and if they failed to respond to a standard teaching approach. In 2005, one of Spain’s autonomous regions, the Canary Islands, proposed a new diagnostic category within the framework of SEN. The aim of this category, known in Spanish as desajuste de aprendizaje (or delayed learning), was to distinguish children who present some kind of learning discrepancy, whether as high achievers or from having sensory, motor, or intellectual deficits, general developmental disorders, or multiple deficits [30]. Some regional governments subsequently passed their own regional education acts. In Andalusia, for example, the act passed in 2007 [57] provided the first official recognition in this region that children with LD had special educational needs. The current situation in Andalusia is that children with LD are distinguished not only from those with SEN (i.e., those with general developmental disorders; sensory, motor, and intellectual deficits; behavioral disorders and ADHD; and speech disorders), but also from those with high intellectual ability and from socially disadvantaged children, with all of them being considered under the umbrella term of ‘NEAE’, that is, children who need special educational support [58]. Thus, in Andalusia, children with LD are those who need special educational support due to impairment in the basic cognitive processes required by learning, where this impairment interferes in both their academic achievement (they must be at least one year behind if enrolled in primary education or two years behind at secondary level) and their daily activities; however, the impairment must not be the result of a diagnosed sensory, motor or intellectual deficit, or be due to a severe emotional disorder or to educational or socio-cultural factors. At present, under the term ‘learning disabilities’, a distinction is made between specific learning difficulties (such as RD), difficulties due to delayed language development and difficulties that result from borderline intellectual ability, although the criteria that must be considered when seeking to identify these problems are not formally set out.

On the other hand, even today the discrepancy model is suggested for government services in Spain for identification of RD. Thus, the RTI model was not used until a few years ago and its use is not generalized to all regions; this model has recently been introduced experimentally in one region of Spain, namely the Canary Islands [29,59,60]. These reasons might explain some of the difference from the American school psychologists in considering diagnostic models (e.g. discrepancy between listening and reading comprehension, IQ cut-off score and IQachievement discrepancy) and the RTI model.

The influence of language characteristics is also considered relevant for explaining results and differences between the two samples. The two samples show a striking difference in their consideration of the criteria discrepancy between listening and reading comprehension and phonemic awareness cut-off score. Specifically, the Spanish respondents agree more with the first criterion than do their U.S. counterparts, and they are less in agreement with the second criterion than are the Americans. This may be a reflection in practice of what research results have shown, that the value of oral language and of phonological processing is different in more consistent languages, such as Spanish, from their value in less consistent languages such as English [37-42]. In more consistent languages, phonological processing is more important than orthographic processing, while in less consistent languages, orthographic processing is more important [38].

On the other hand, another reason for these findings may be respondents’ professional experience or level of education. Most of the psychologists surveyed did not have a doctoral degree, they had fewer than 10 years of experience (in the case of the Spaniards), they had not completed many specific training courses in RD, and they did not feel well prepared after completing the training courses they had taken. Such factors may explain why the Spanish sample ascribed more importance to diagnostic models than to the RTI model, and even why there were high percentages of the “don’t know” response on most items, or even why some of the respondents saw no need for exclusion criteria. It would be useful for future studies to establish how such variables influence the opinion of practicing psychologists on identifying RD, in the line of other research studies such [1,2,46].

Finally, regarding exclusion criteria for identification of RD, there is agreement between the Spanish and American psychologists in selecting mental retardation and inadequate instruction as high priorities. The distinction between these problems and RD has been a priority study objective in this field for decades, and furthermore, both international classification systems, the ICD-10 and DSM-5, concurrently refer to the unexpectedness of poor performance as a crucial component of the concept of reading disabilities. This concept of unexpected underachievement implies that reading disorders attributable to intellectual disabilities, sensory problems, or insufficient instruction, among other conditions, should not be identified as Reading disabilities [61].

Limitations

First, the size of the Spanish sample was limited due to low participation from the psychologists contacted. With a larger sample, there might have been less variability in the responses and results would be more suitable for generalization.

Second, some of the items included in the measurement instrument might be considered ambiguous as they are currently expressed (e.g. IQ cut-off score, Reading achievement cut-off score, etc.). It is reasonable to think that this may have affected the high percentages of “don’t know” responses on most items.

On the other hand, even though the criteria considered here are the ones that are most represented in recent research and educational practice, there is a need to include proposals that have appeared since the studies [1,2]. Along these lines, certain investigations indicate that the RTI model is effective for improving reading achievement as long as certain conditions are met, but it is ineffective for identifying specific learning disabilities [35] propose the Components Model of Reading (CMR) as an alternative to the discrepancy or RTI models. This model takes into account three domains: cognitive components (word recognition and comprehension), psychological components (motivation, locus of control, teacher expectations, gender differences and learned helplessness) and ecological components (behavior at home, culture and parental involvement, classroom environment, peer influences, dialects, ELL). This model evaluates reading performance from a multidimensional perspective that facilitates more adequate instruction for the reader, with better chances for success.

Finally, since we did not have access to the raw data from [1], we were unable to perform inferential statistical analyses in order to compare the results from the two study samples. This implies that the results and subsequent conclusions of this descriptive study should be taken with caution.

Conclusion

This study has newly illustrated the existing controversy about the criteria to be used in identifying RD. While in some countries the operational definition of LD (including RD) is closer to the conceptual definition from the latest research, this is less so in the case of countries such as Spain.

This may be largely due to the fact that the legislation of each country does not equally reflect the progressive evolution of identification criteria in the research. . In this regard, changes in the conceptual definition of LD, and of RD specifically, should lead to changes in both educational law and professional practice, but as Reschly notes: “If disability category designation is not required by state or federal law, it is highly likely that most of the demand for the administration of individual ability measures will be substantially reduced. There are places where such reforms have been instituted…” [62]. This is one reason why it is important to draw up educational legislation that ensures that the specific criteria used by each country to identify RD are based on the latest research findings.

Further aspects that merit attention include the influence of language characteristics in explaining these problems, and the professional experience and level of education of the practicing psychologists. Language differences could explain why all identification criteria would not have the same value in every language, and therefore, as in the conceptual definition of RD, these specific questions must be considered. Also important is that research advances become known among the professionals, allowing them to increase their knowledge and put into practice the new research findings. This suggests that there is a need to design and implement continuing education programs that can help professionals keep up to date with both changes in the conceptualization of RD and the most suitable criteria for identifying them. Indeed, it would appear that specific protocols are needed to ensure more effective detection and diagnosis of RD, and also that teachers and school psychologists are adequately trained in how to apply them. It is in this regard that clear and common criteria must be set out, based on the latest research on RD.

In sum, the lack of consensus regarding the identification of RD, previously identified in other countries and now observed in this survey of Spanish school psychologists, is largely determined by the conceptual changes in identification of RD and the legislative recognition that each country gives to such disabilities. Thus, although some progress has been made, a gap remains between the conceptual and operational definitions of RD. This highlights the need to develop international legislation or agreements that would help harmonize these definitions, such that professional practice can be brought into line with the findings of applied research.

Future studies should analyze and compare the opinions of researchers and professional psychologists in different countries with different languages, for the purpose of consolidating the definition and identification of RD, taking into consideration opinions from the spheres of research and of professional practice.

References

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