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Taha, Mohamed M.; El Nagar, Hosny Z. – Insights into Learning Disabilities, 2018
The purpose of this study is to construct and evaluate diagnostic battery tests of verbal and non-verbal learning disabilities for students in the Arabic schools. 612 students were in the 3rd, 4th and 5th grades of primary school were involved, mostly from Egypt and Saudi Arabia. Their ages ranged from 7.94-10.98 with mean age = 9.62 and SD =…
Descriptors: Diagnostic Tests, Learning Disabilities, Foreign Countries, Grade 3

Edelson, Meredyth Goldberg; Schubert, Derenda Timmons; Edelson, Stephen M. – Focus on Autism and Other Developmental Disabilities, 1998
This study evaluated use of the Test of Nonverbal Intelligence Second Edition (TONI-2) with 258 individuals (ages 4 to 41) with autism. Results indicated that age, verbal ability, and lack of attention deficits were most predictive of TONI-2 scores, whereas attention deficits and a moderate number of autistic symptoms predicted untestability on…
Descriptors: Adults, Age Differences, Attention Deficit Disorders, Autism