The McCarthy Scales of Children's Abilities (MSCA) appears to be an effective predictor of school achievement for 31 English-speaking second-grade Mexican-American children. High Pearson product-moment correlations were obtained between MSCA and the Comprehensive Tests of Basic Skills. (Author/PN)

The importance of theory and experimental findings in giving direction, structure, and comprehensibility to research about self-concept is discussed. Analysis of the necessary affective variables to be included in the systematic experimentally-based development of effective educational programs in the affective domain is emphasized. (Author/AL)