Robert D. Brehm, M.A. Green River Community College Auburn, Washington Abstract. The t- test measured the differences between an experimental and control group.
Some startling results raise questions for continued research.
The small number of students participating in this study contraindicates hypotheses about college students. A t - test compared the probability of differences between the means of the experimental and control groups. This study investigated the personality characteristics of a Pacific Northwest community college population, over 4000 of whom were registered as full time students, during the fall quarter of 1994. Eighty two percent of the students selected from the experimental group, and twenty five percent of' the control group, participated in the study. Procedure The investigator selected 100 students randomly from the freshman students registered in the fall quarter of 1994.