This study was conducted to gain information that would be useful in designing effective suicide prevention programs for adolescents, thus expanding secondary prevention of suicide by teaching adolescents to be early detectors and gatekeepers to professional help for suicidal adolescent peers. College freshmen (N=1,131) were surveyed to discover if they could recognize suicidal behavior in their peers and if they knew a helpful response to make to suicidal peers. Level of perceived self-efficacy and emotional comfort in an affect-laden situation were also measured. The results revealed that subjects were able to recognize suicidal behavior in their peers, but were unsure of a helpful response to make to them. A model of self-efficacy, emotional comfort, knowledge of a helpful response, and knowledge of suicidal behavior predicted a student's intention to ask a suicidal peer directly, "Are you thinking about killing yourself?" Results of the study suggest that suicide prevention programs for adolescents should include educational experiences such as modeling, skill-training, and role-playing to increase self-efficacy and emotional comfort in affect-laden situations. (NB)