Surveys regarding practitioner perceptions of time requirements for psychological testing were mailed to a national sample of clinical psychologists. There were 228 (36%) returns from 630 mailings actually received. On the basis of 151 usable returns from respondents who conduct psychological testing services, data are presented separately for time requirements associated with administering, scoring, and interpreting the 24 most commonly used tests. Data are also presented regarding the composition of typical test batteries and practitioner usage of technician and/or computer assistance in psychological testing. The implications of these data for research and practice are discussed.