Construction and Validation of Learning Disabilities Diagnostic Checklist

The aim of this study was to construct and validate a learning disabilities' diagnostic checklist. According to the purpose of research, descriptive research method and test-making type have been used. The statistical population was primary school students (first and second grade) in Najaf Abad and the statistical sample included 180 students who were selected by multi-stage random sampling. Validity of the scale was performed using factor analysis. To evaluate the scale's reliability were used Cronbach's alpha coefficients and splitting method. The results showed the reliability coefficient of the total diagnostic checklist and the reliability coefficient of 10 subscales are at an acceptable level. Also, the results of the construct validity of the 10 factors confirmed by confirmatory factor analysis. The correlation between the learning disabilities diagnostic checklist and the informal reading, writing and math test were calculated, which indicates the validity of the checklist criterion. Therefore, this checklist with 87 items of is worthy for evaluating 10 areas of spatial perception, organization, socio-emotional skills, motor skills, attention, language skills, reading skills, writing skills, essay writing, skills and mathematics in students. Therefore, it is suggested this checklist be used to assess and diagnose of learning disabilities in primary school students.