This investigation of survey research methodology examined the satisfaction differences between anonymous and identified respondents to a client satisfaction survey from a university counseling center. A questionnaire based on the Counseling Services Assessment Blank was mailed to 410 students terminated from counseling during the 1980-81 academic year. The cover letter explained that both response and self identification were optional. The response rate was 59 percent, and 25 percent of the responses were anonymous. Identified respondents reported greater treatment satisfaction levels than did anonymous respondents. Further research is necessary: (1) to confirm the assumption that anonymous respondents provide more accurate information; (2) to determine the influence of perceived survey data uses on responses; and (3) to clarify the satisfaction differences of respondents and non-respondents. (BS)