The purpose of this study was to investigate the construct validity of the eight subscales of the Cambridge Cognitive Examination (CAMCOG). A confirmatory factor analysis was conducted to determine if the subscales of the CAMCOG, as proposed by its authors (Roth et al., 1986), were able to adequately describe the total set of relations among the set of individual scale items.The subjects consisted of 224 male and female individuals obtained through a study to examine the validity of the CAMCOG on a United States population. The subjects were divided into two separate groups: those diagnosed as having a dementing illness and a normal comparison group. The CAMCOG was administered to each subject as a measure of neuropsychological functioning by a trained professional or paraprofessional.Two models were established a priori for the confirmatory factor analysis. The first model was based on the theory of Roth et al. (1986) which suggested there are eight factors within the CAMCOG. The second model was developed as a one-factor solution and was based on the present author's theory that the CAMCOG is a general measure of brain impairment and that all data would be best explained by one common factor. Maximum likelihood estimates were calculated using LISREL VII (Joreskog & Sorbom, 1989).The results of the study suggest that the eight-factor model of the CAMCOG proposed by its authors (Roth et al., 1986) provided a significantly better explanation of the data than did the one factor model proposed by the author of this study. However, neither one of the models postulated was found to adequately describe the covariance of the obtained data. Accordingly, the validity of the constructs of the CAMCOG as proposed by Roth et al. (1986) is considered to be questionable. Suggestions for further research are presented. / Department of Counseling Psychology and Guidance Services
| Identifer | oai:union.ndltd.org:BSU/oai:cardinalscholar.bsu.edu:handle/175416 |
| Date | January 1995 |
| Creators | Capps, Steve C. |
| Contributors | Kiselica, Mark S. |
| Source Sets | Ball State University |
| Detected Language | English |
| Format | vii, 129 leaves ; 28 cm. |
| Source | Virtual Press |
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