This study used random assignment to assess the effects of invitation mode on response rates, costs, and demographic representativeness. Participants were sent a mailed invitation letter and a $2 cash incentive; a mailed invitation letter only; or an e-mailed invitation. Nonresponding faculty...

Measures of socral functioning are gaining increasing attention as important outcome criteria in evaluation of psychiatric treatment. This article reviews approaches to conceptualization and measurement of social functioning in mental health treatment outcome evaluation, and enumerates several...

This study used random assignment to assess the effects of invitation mode on response rates, costs, and demographic representativeness. Participants were sent a mailed invitation letter and a $2 cash incentive; a mailed invitation letter only; or an e-mailed invitation. Nonresponding faculty...