The 1981 study ascertained whether the self-concept of 66 camp staff from 2 Wisconsin camps changed more than a control group of 18 college students attending summer school; if differences in self-concept were based on a particular characteristic (age, gender, staff position, years at camp); and in what ways, if any, self-concept of camp staff change. The Adjective Check List (ACL) and demographic and short answer questions were administered the first and last weeks of camp and summer school sessions. No significant changes were found between the two groups. Camp staff exhibited more total self-concept change, but only at the .05 level. Paired t-test, used to determine the difference between pre- and post-test scores, indicated a significant change over the summer between subscale scores on attitudes and ideology. Some significant differences were found between the seven ACL self-concept measurements and their characteristics: age was not a factor; counselor roles were most indicative on the ideology scale (showing they became more pragmatic); and gender did not affect change significantly, although females tended to change more than males. Of the 64 camp staff responding, 57 (90%) felt their self-concept had changed, even though the study results did not indicate that this was significantly true. (AH)