Signed versus unsigned personal questionnaires

Abstract

"The College Form of Mooney's Problem Check List was given to 102 upperclass women students in psychology first with and then without signatures being used. The interim between testings was one week. The results indicated that the mean number of problems underlined (total problems, presumably not serious) did not vary significantly under the two conditions of administration but that the mean number of problems circled (serious problems) tended to be significantly greater when signatures were withheld." (PsycInfo Database Record (c) 2025 APA, all rights reserved)