Constructing  and Validating of  the  Neuropsychological  Test  for Diagnosis  of  Non-verbal  Learning  Disorders for Students of Elementary Schools

Movahedipoor, Robabeh; Dortaj, Fariborz; Nasri, Sadegh; Asadzadeh, Hasan; Abolmaalialhoseyni, Khadijeh

doi:10.30473/clpsy.2019.43296.1381

Document Type : Original article

Authors

¹ Ph.D student in Educational Psychology,Islamic Azad University,Science and Research Branch,Tehran,Iran.

² Professor of Educational Psychology, Allameh Tabatabai University, Tehran, Iran.

³ Associate Professor of Educational Sciences, Shahid Rajaee Tarbiat University, Tehran, Iran.

⁴ Associate Professor of Educational Psychology, Allameh Tabatabai University, Tehran, Iran.

⁵ Associate Professor of Psychology, Rooden Department, Islamic Azad University, Rooden, Iran.

https://doi.org/10.30473/clpsy.2019.43296.1381

Abstract

Introduction : deficits and difficulty in neuropsychological functions are the most important component of the non-verbal learning disorders. The purpose of this study was to constructing , Investigating Reliability and Validating of the neuropsychological test for diagnosis of non-verbal learning disorders. Method: The research method is descriptive-survey.The statistical population includes all girl and boy students of elementary schools in Alborz province who studied in the academic year of 1396-97.The research sample consisted of 480 students from the first to sixth grade elementary schools of the Alborz province, selected by multistage cluster sampling method and were assessed with The researcher-made test for non-verbal learning disorders,Perceptual reasoning subtest and verbal comprehension subtest from WISC-IV.The external and content validity of the scale was approved by two experts in this field. Also, for investigate of external validity, the effects of the scores were used and the content validity was assessed by two methods: a) the Content Validity Ratio (CVR), and b) Content Validity Index (CVI). The concurrent validity of the scale was investigate using the Perceptual reasoning subtest from WISC-IV. The discriminant validity of the scale was investigate using the verbal comprehension subtest from WISC-IV. In order to investigate the construct validity, Factor analysis method was used in the main components and the varimax variables were used .Findings: The results confirmed the external validity, content validity ,concurrent validity, discriminant validity and construct validity of the researcher-made test.The reliability of the test by calculating the Cronbach's alpha was 0.81 and with split–half method was 0.78.clinical cut off point were 18.50. Conclusion: based on the results of the present study, it can be concluded that the neuropsychological test for diagnosis of non-verbal learning disordershas adequate validity and reliability and can be used as a valid tool for the diagnosis of non-verbal learning disorders in elementary school students.

Keywords

20.1001.1.24765023.1398.5.16.1.8

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Constructing and Validating of the Neuropsychological Test for Diagnosis of Non-verbal Learning Disorders for Students of Elementary Schools

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Volume 5, Issue 16 - Serial Number 16June 2019Pages 9-36

Volume 5, Issue 16 - Serial Number 16
June 2019
Pages 9-36