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Journal of Learning Disabilities
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Convergent-Discriminant Validity of the Jewish Employment and Vocational Service System

Elaine M. Tryjankowski

Elaine M. Tryjankowski received her EdD from Rutgers University, New Brunswick, New Jersey, in the area of vocational education. She is currently a special needs coordinator at the Monmouth County Career Center in Freehold, New Jersey. Address: Elaine M. Tryjankowski, EdD, Career Center, Kozloski Rd., Freehold, NJ 07728.

This study investigated the construct validity of five perceptual traits with five simulated work samples from the Jewish Employment and Vocational Service Work Sample System (JEVS). The subjects, mean CA 14.4, were thirty-six applicants with learning disabilities who attended a prevocational assessment program. Utilizing the paradigm of convergent-discriminant validity, convergent validity (p < .01) was evidenced in four of the five work samples and discriminant validity (p < .01) was demonstrated in three of the five work samples. The results indicate that simulated work samples can be used as a diagnostic instrument for assessment of perceptual abilities in a vocational setting.

Journal of Learning Disabilities, Vol. 20, No. 7, 433-435 (1987)
DOI: 10.1177/002221948702000710
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