Many of these techniques were found to produce positive outcomes, such as increased dating frequency and decreased anxiety in heterosocial situations. For example, 14 female and 21 male college students were selected--- according to their measured hetero-social anxiety and self-reported infrequency of dating--- to participate in an experimental study by Curran and Gilbert (1975). The subjects were randomly assigned to "either the replication skills-training program, a systematic desensitization training program, or a waiting list control". The researchers found that both treatment groups demonstrated significant decreases in anxiety and increases in dating frequency post-test and at later follow-ups (J. P. Curran & Gilbert, 1975).