The investigation of psychometric properties of fifth version of Wechsler Children's Intelligence in Iran

Karami, Abolfazl; Karami, Raana; Alipour, Ali

doi:10.22054/jem.2021.51727.2036

Document Type : Research Paper

Authors

¹ Associate professor of Allameh Tabataba’i University, Faculty of Psychology and Educational Science, Tehran, Iran.

² PhD in Clinical Psychology/Psychopathology, University of Strasbourg, Faculty of Clinical Psychology, Psychopathology and cognitive Neuroscience, Strasbourg, France

³ Master of Child psychology, Islamic Azad university, Faculty of Psychology and Social Science, Roodehen, Iran

https://doi.org/10.22054/jem.2021.51727.2036

Abstract

Abstract:
The aim of this study concerned with validating the fifth version of Wechsler Children’s Intelligence Test on Iranian children aged between 6 and 16 years old.
According to the statistics of students studying in elementary school and junior high school, 1200 people were selected as a multi-stage cluster research model. Wechsler Children’s Intelligence Test 5th edition and Wechsler Children’s Intelligence Test 4th edition, were the measuring instruments. The reliability of subtests, intelligence quotient and indexes were performed using three following methods: bisection, Cronbach’s alpha, and retesting.
To calculate and analyze the test validity, the criterion method was simultaneously performed on 240 people with the correlation of indexes and Wechsler 5 intelligence with Wechsler IV; and structural validity through exploratory and confirmatory factor analysis. To analyze and operation of all subtests, the difficulty coefficient and discriminative coefficient were calculated.
The results of the findings of the all three methods used for reliability showed that this test is highly validated in Iran, and the results were consistent with the results of the same test compare in the United States.
The difficulty and discriminative coefficient of the questions were appropriate in Iran. Due to the up-to-date and high psychometric properties of this test in Iran and obsolescence of previous versions, it is recommended to use this test to evaluate children aged between 6 and 16 years old in Iran.
Keywords: Intelligence, Reliability, Validity, Wechsler Intelligence Test for Children 5th edition and Iranian Elementary and Junior High School Students 6 to 16 years old

Keywords

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Quarterly of Educational Measurement

The investigation of psychometric properties of fifth version of Wechsler Children's Intelligence in Iran

References

References

Volume 11, Issue 41
October 2020
Pages 97-125

The investigation of psychometric properties of fifth version of Wechsler Children's Intelligence in Iran

References

References

Volume 11, Issue 41October 2020Pages 97-125

Volume 11, Issue 41
October 2020
Pages 97-125