The reliability and validity of the Chinese version of allen cognitive level screens : a preliminary study

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The reliability and validity of the Chinese version of allen cognitive level screens : a preliminary study


Author: Leung, Siu-bong
Title: The reliability and validity of the Chinese version of allen cognitive level screens : a preliminary study
Degree: M.Sc.
Year: 2003
Subject: Hong Kong Polytechnic University -- Dissertations
Occupational therapy
Cognition disorders -- Diagnosis
Psychological tests
Department: Multi-disciplinary Studies
Dept. of Rehabilitation Sciences
Pages: 102 leaves : ill. ; 30 cm
Language: English
InnoPac Record:
Abstract: The Allen Cognitive Levels Screens (ACLS) was developed by Claudia Kay Allen in 1985 to assess the cognitive functions of people with cognitive impairments or psychiatric disabilities. The purpose of this study was to gather evidence on the Chinese version of Allen Cognitive Level Screens (CACLS), in terms of its test-retest, inter-rater reliability, concurrent validity and further examination of its construct validity in a known group study. A group of 61 people with Schizophrenia, either living independently, in half-way houses or long stay care home, and another group of 61 healthy subjects were respectively recruited to perform CACLS, Mini-mental state Examination (CMMSE) and Functional Need Assessment (CFNA). Results suggested that inter-rater and test-retest reliability estimated by Intraclass correlation coefficient ICC were high with coefficient of 0.95 and 0.98 (P<0.01) respectively. The concurrent validity has been confirmed that CACLS score correlated moderately with CMMSE (r=0.61, P<0.01), and was highly correlated with CFNA scores (r=0.71, P<0.01). Based on the result of Mann-Whitney U-Test (Z= -8.679, P<0.001) and Analysis of covariance (F=40.7, p<0.001), the construct validity of CACLS had been established that it was able to differentiate schizophrenic patient and healthy subjects with and without cognitive disability significantly in a known group study. In conclusion, CACLS is suggested a valid and reliable instruments to assess people with Schizophrenia' learning disability. Future research should be directed towards further exploring the application of Chinese version of Allen Cognitive Level Screen in local rehabilitation setting and establish a cut-off score to differentiate people in different residential placement, such as living independently, in half-way house and long stay care home.

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