Separate factor analyses of the McCarthy Scales for groups of black and white children

Factor analyses of the McCarthy Scales of Children's Abilities (MSCA) were performed on separate groups of black (N = 124) and white (N = 688) children, aged 3.0 to 7.6 years, to assess the comparability of the underlying structures and to evaluate the construct validity of the MSCA for each racial group. Little Jiffy I (principal components) solutions produced four factors for the blacks and three for the whites. Each “white” factor had a coefficient of congruence of .85–.93 with one “black” factor, indicating the close similarity of the solutions. In addition, the factors which emerged for the blacks and whites corresponded to several of the scales constituting the MSCA, offering evidence of the instrument's construct validity for each racial group. The results of the study should enhance the use of the McCarthy Scales for assessing young children of all races.