The relative influence of selected life history experiences on the development of three vocational types (investigative, social, and enterprising) proposed by J. L. Holland is studied using causal modeling procedures. The lack of explicitness in the developmental postulates of Holland's theory is seen as a major deficiency. Among the principal…

This study investigated whether differences in the dimensional structure of the form of the Law School Admission Test (LSAT) across selected ethnic subgroups of test takers had any impact on equating results using an item response theory (IRT) true-score procedure. Whether there were any differences in the underlying latent trait composite across…