Last year a University hired a research rm to administer a questionnaire to a sample of students who were living oncampus, as a well as a sample of students living off-campus. In responding to the questionnaire, the students rated the extent to which they experienced a variety of problems (as well as benets) related to their place of residence. Questionnaires were completed by 255 undergraduate students. Of these, 84 (33%) lived offcampus, and 171 (67%) lived oncampus. The following table summarizes the results from part of the questionnaire (mean and standard deviation estimates for the groups. Hypothesized on-campus disadvantages Off-Campus On-Campus Criterion variable X S E S a Interruptions 4.58 (1.60) 4.71 (1.64) Studying environment problems 3.46 (1.65) 3.47 (1.50) Sleeping environment problems 2.69 (1.54) 3.58 (1.73) Symptoms of stress 3.37 (0.87) 3.66 (0.90)