The short-term, test-retest reliability of the Khan-Lewis Phonological Analysis when used with pre-school and primary school children who are educably mentally retarded

Abstract

The purpose of this study was to determine the short-term, test-retest reliability of the Khan-Lewi s Phonological Analysis (KLPA) to identify phonological disorders in pre-school and primary school children who are educably mentally retarded (EMR). The subjects consisted of 12 girls and 12 boys classified as EMR with a mean chronological age of 7 years, 6 months and a mean mental age of 5 years, 1 month. The results of this study indicated that the KLPA was a highly reliable tool when used to identify individual phonological processes and overall total raw scores in children who are educably mentally retarded. However, when the KLPA's phonological process ratings were used to determine therapy eligibility, the results were less reliable, reflecting a 62% accuracy.