Health Psychology / Education / Social Cognitive Theory / Adolescent / Self Efficacy / Students / Humans / Female / College Students / Male / Sexual Behavior / Universities / Condom use / Human immunodeficiency virus / Questionnaires / Adult / Risky Sexual Behavior / Condoms / Structural model / Acquired immunodeficiency syndrome / Students / Humans / Female / College Students / Male / Sexual Behavior / Universities / Condom use / Human immunodeficiency virus / Questionnaires / Adult / Risky Sexual Behavior / Condoms / Structural model / Acquired immunodeficiency syndrome