Recent studies are examined for methodological adequacy in establishing dimensions of individual differences in information-processing abilities, and the theoretical problems involved in inferring psychological processes from individual difference dimensions. Methodological inadequacies include use of small samples, questionable procedures in…

The principal task of this book was to examine some of the research evidence concerning the relation between personality and school achievement. Its source was the empirical research which bears on this issue rather than the various theories of personality. The reason for this was that the implications of many theories of personality for…