ERIC Number: ED481105
Record Type: Non-Journal
Publication Date: 2003-Apr
Reference Count: N/A
Diagnose Test-Taker's Profile in Terms of Core Profile Patterns: Principal Component (PC) vs. Profile Analysis via MDS (PAMS) Approaches.
Kim, Se-Kang; Davison, Mark L.
A study was conducted to examine how principal components analysis (PCA) and Profile Analysis via Multidimensional Scaling (PAMS) can be used to diagnose individuals observed score profiles in terms of core profile patterns identified by each method. The standardization sample from the Wechsler Intelligence Scale for Children, Third Edition (WISC-III; 1991) was used. This sample of 2,200 cases included 200 children in each of 11 age groups from 6 to 16 years. Core profiles were estimated from PCA and PAMS analyses of the WISC-III standardization sample. Three principal components were obtained from PCA and two dimensions were identified by PAMS. When root mean squared deviations were computed from differences between observed score profiles and replicated score profiles by each method, the results indicate that the PAMS approach replicated the raw data better than the PCA approach did. The uses of both methods are discussed. (Contains 6 figures and 14 references.) (SLD)
Publication Type: Reports - Research; Speeches/Meeting Papers
Education Level: N/A
Authoring Institution: N/A
Identifiers - Assessments and Surveys: Wechsler Intelligence Scale for Children