AUTHORS

An investigation of techniques used to maximize response rates was the purpose of this study. Variables included perceived threat of questionnaire, questionnaire length, cover letter approach, follow-up correspondence, stamped/unstamped return envelope, and anonymity. The sample comprised 4,608 college faculty. Three analyses of response rates were performed at different points in time. There were no significant differences in response rate for the three levels of questionnaire threat, two lengths (in pages) of questionnaire, two forms of return envelope, or two levels of anonymity. Questionnaires with fewer items were returned more often after the initial mailing. Typed cover letters with a perscnal appeal elicited higher response rates. Follow-up letters with another questionnaire enclosed increased response rates. On the basis of the data, use of a follow-up letter with another questionnaire enclosed, a typed cover letter with a personal appeal, and inclusion cf an unstamped return envelope is recommended. (Author/CK