A study of the effectiveness and efficiency of the Canadian Tests of Basic Skills, grade point average and teacher judgement in the identification of intellectually gifted children

Walsh, Marie Camille (1983) A study of the effectiveness and efficiency of the Canadian Tests of Basic Skills, grade point average and teacher judgement in the identification of intellectually gifted children. Masters thesis, Memorial University of Newfoundland.

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Abstract

This study examined the effectiveness and efficiency of three screening devices for the identification of intellectually gifted children. Effectiveness was defined by the percentage of gifted children a device located and efficiency was defined by the ratio between the total number of children it refers for individual examination and the number of gifted children found among those referred. The study evaluated group achievement test results (Canadian Tests of Basic Skills), grade point averages (G.P.A.) and teacher judgements as identifiers of gifted students. The criterion used to identify the intellectually gifted was a Wechsler Intelligence Scale for Children - Revised (WISC-R) IQ score of 115 or higher. The WISC-R was tabulated for all Grade 4 students from two St. John's schools who were identified as gifted by one or more of the above-mentioned measures in accord with the following criteria: 1) C.T.B.S. local percentile rank of 84 or higher; 2) G.P.A. percentage of 84% or higher; 3) teacher judgement of four or more nominations. The results of this investigation indicated there were individual differences in the effectiveness and efficiency of the C.T.B.S., G.P.A. and teacher judgement. If one is looking for both effectiveness and efficiency, the C.T.B.S. was the best identifier of gifted children. If the area of concern is efficiency, teacher judgement should be considered, and if effectiveness is the area of concern, G.P.A. should be considered. All three measures used in this study facilitated the identification process. No one approach was sufficient to identify all intellectually gifted children.

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