Walter Et Al

Walter et al.'s (1993, 1992) studies to teach student negotiating skills to avoid sexual behaviors concluded that

A) Most students significantly improved their negotiation skills and were confident they could use them effectively.
B) Students indicated they were least likely to effectively use their new negotiation skills if they had consumed alcohol or drugs prior to the negotiation.
C) Pressure to engage in risky sexual behaviors was greatest when attending parties where drinking and drug use was the norm.
D) All of the above