A subset of a real data set was used to illustrate an ad hoc analysis with missing data on multiple response variables. This strategy was initiated with a complete-case analysis to determine some variables that may be deleted with no loss in effects of interest. (SLD)

Academic failure among first-year university students has long fuelled a large number of debates. Many educational psychologists have tried to understand and then explain it. Many statisticians have tried to foresee it. Our research aims to classify, as early in the academic year as possible, students into three groups: the "low-risk"…

A subset of a real data set from a national survey on alcohol use and driving in Canada (original sample of 6,457) is used to illustrate an ad hoc analysis with missing data on multiple response variables. A complete-case analysis initiates this strategy, determining variables that may be deleted without losing effects of interest. By such a…

Compared the efficacy of two methods of cluster analysis, the unweighted pair-groups method using arithmetic averages (UPGMA) and Ward's method, for students grouped on intelligence, achievement, and social adjustment by both clustering methods. Found UPGMA more efficacious based on output, on cophenetic correlation coefficients generated by each…

A study using discriminant analysis to correct bias in predicting faculty rank is reported. Findings concerning the relationship of prediction error and gender and suggestions for use of the results to study salary-bias problems are also discussed. (Author/MSE)

Two studies evaluated a technique for combining perceptions family members have of their families into measures of the family as a unit. Study 1 tested the reliability of an individually administered measure of family support and affiliation created to serve as a basis for aggregated family indices. Two existing family-assessment methods were…