Examined effects of four counselor response types on subjects' impressions of counselor during vocational counseling. Undergraduate students (N=201) viewed videotapes of initial vocational counseling interview in which counselor used either self-disclosure, self-involving, empathic, or open-question statements. Generally, a lack of significance was found across dependent measures. Interprets results relative to vocational counseling and compares to literature on personal-social counseling. (Author/PVV)