Document Type : Research Paper
Authors
1
PhD student in psychology, Tonekabon branch, Islamic Azad University, Tonekabon, Iran.
2
Associate Professor, Department of Psychology, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran
3
Associate Professor, Department of Psychology, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran.
4
Assistant Professor, Department of Psychology, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran.
10.22098/jld.2026.18339.2286
Abstract
Objective: The aim of the present study was to design, construct, and standardize a scale for diagnosing specific learning disabilities for second-grade elementary school students.
Methods: The statistical population of the present study included all second grade elementary school students in Tehran in 2024 and 2025. The sample size of the above study included 300 second grade students selected through convenience sampling in Tehran. The measurement tool in this study was the Specific Learning Disorder Diagnosis Scale based on the ten-item cognitive hierarchy model of Cattell, Horne, and Carroll (CHC) developed by the researchers. Initially, a pilot study was conducted in a group of 60 second grade elementary school students, and after, the data were collected and analyzed using SPSS-26 and AMOS-24 software.
Results: The content validity ratio (CVR) index of all subscales was greater than the minimum acceptable value, and the reliability was estimated by Cronbach's alpha method for the total and subscales to be greater than 0.70. Factor loadings of more than 0.3 and cumulative frequency of 84.647 explain the variance of the variables.
Conclusion: The Specific Learning Disorder Assessment Scale for second grade elementary school students, designed and developed by researchers, has been evaluated by psychology experts in terms of content validity and appropriate internal validity. Also, the validity(reliability)for the entire scale and subscales shows strong internal consistency and according to the findings obtained from exploratory factor analysis, the construct validity of a saturated general factor and the confirmatory factor analysis model also has an appropriate fit.
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