This study was designed to investigate the validity and reliability of the Motor-Free Visual Perception Test (MVPT) when used with mentally retarded subjects. Forty-six mentally retarded children's MVPT scores were correlated with CA, IQ, achievement ranking, and the matching and copying subtests of the Metropolitan Readiness Tests. Low magnitude nonsignificant correlations were obtained for CA and achievement, while significant high magnitude correlations resulted from IQ, matching, and copying. A reliability coefficient of .81 was obtained. The study lends initial support for use of the MVPT with mentally retarded subjects.
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