Is there any evidence for the validity of diagnostic criteria used for accommodative and nonstrabismic binocular dysfunctions?

Purpose: To analyze the diagnostic criteria used in the scientific literature published in the past 25 years for accommodative and nonstrabismic binocular dysfunctions and to explore if the epidemiological analysis of diagnostic validity has been used to propose which clinical criteria should be used for diagnostic purposes. Methods: We carried out a systematic review of papers on accommodative and non-strabic binocular disorders published from 1986 to 2012 analysing the MEDLINE, CINAHL, PsycINFO and FRANCIS databases. We admitted original articles about diagnosis of these anomalies in any population. We identified 839 articles and 12 studies were included. The quality of included articles was assessed using the QUADAS-2 tool. Results: The review shows a wide range of clinical signs and cut-off points between authors. Only 3 studies (regarding accommodative anomalies) assessed diagnostic accuracy of clinical signs. Their results suggest using the accommodative amplitude and monocular accommodative facility for diagnosing accommodative insufficiency and a high positive relative accommodation for accommodative excess. The remaining 9 articles did not analyze diagnostic accuracy, assessing a diagnosis with the criteria the authors considered. We also found differences between studies in the way of considering patients’ symptomatology. 3 studies of 12 analyzed, performed a validation of a symptom survey used for convergence insufficiency. Conclusions: Scientific literature reveals differences between authors according to diagnostic criteria for accommodative and nonstrabismic binocular dysfunctions. Diagnostic accuracy studies show that there is only certain evidence for accommodative conditions. For binocular anomalies there is only evidence about a validated questionnaire for convergence insufficiency with no data of diagnostic accuracy.

Evaluación de la ansiedad escolar: revisión de cuestionarios, inventarios y escalas

El objetivo de este trabajo fue doble. En primer lugar se describen los cuestionarios, inventarios y escalas de ansiedad escolar elaborados y validados para población infantil y adolescente: Cuestionario de Ansiedad Escolar, Inventario de Miedos Escolares, Catálogo de Situaciones Escolares, Escala Visual Análoga para la Ansiedad-Revisada, Escala Magallanes de Problemas de Ansiedad e Inventario de Ansiedad Escolar. En segundo lugar se analiza la fiabilidad (consistencia interna y estabilidad temporal) y la validez (estructura factorial, relación con otros cuestionarios, relación con otros procedimientos de evaluación y diferenciación entre grupos) de la puntuación de estos instrumentos, con el fin de conocer sus propiedades psicométricas y poder tomar decisiones sobre su uso en la práctica clínica o educativa sobre la base de criterios empíricos. Los resultados permiten concluir que actualmente existen autoinformes que presentan garantías psicométricas satisfactorias para llevar a cabo una interpretación fiable y válida de sus puntuaciones, siendo por tanto útiles en la práctica clínica y educativa.

Psychometric properties of the Spanish adaptation of the School Attitude Assessment Survey-Revised

Background: The assessment of attitudes toward school with the objective of identifying adolescents who may be at risk of underachievement has become an important area of research in educational psychology, although few specific tools for their evaluation have been designed to date. One of the instruments available is the School Attitude Assessment Survey-Revised (SAAS-R). Method: The objective of the current research is to test the construct validity and to analyze the psychometric properties of the Spanish version of the SAAS-R. Data were collected from 1,398 students attending different high schools. Students completed the SAAS-R along with measures of the g factor, and academic achievement was obtained from school records. Results: Confirmatory factor analysis, multivariate analysis of variance and analysis of variance tests supported the validity evidence. Conclusions: The results indicate that the Spanish version of the SAAS-R is a useful measure that contributes to identification of underachieving students. Lastly, the results obtained and their implications for education are discussed.