Regression factor score predictors have the maximum factor score determinacy, that is, the maximum correlation with the corresponding factor, but they do not have the same inter-correlations as the factors. As it might be useful to compute factor score predictors that have the same inter-correlations as the factors, correlation-preserving factor…

This paper presents a non-parametric imputation technique, named random forest, from the machine learning field. The random forest procedure has two main tuning parameters: the number of trees grown in the prediction and the number of predictors used. Fifty experimental conditions were created in the imputation procedure, with different…

The authors evaluated empirical research addressing the relationship between induced abortion and women's mental health. Two issues were addressed: (a) the relative risks associated with abortion compared with the risks associated with its alternatives and (b) sources of variability in women's responses following abortion. This article reflects…

The major purpose of the present experiment was to assess the impact of student-generated and expert-generated knowledge maps on the effectiveness of post-organizer construction, initial acquisition, and transfer. Sixty students at the University of Missouri-Rolla were included in this study. Participants were required to study a passage and…

Discusses computerphobia and its relationship to other anxiety literature, and describes a study of university students that explored the reasons for computerphobia. Retrospective computer and mechanical experiences are investigated, personality style and the effect of various media are examined, and comparisons are made between severe and milder…