Abstract: The present paper investigated the analogue measure of role-play for assessing students, assertive behavior to explore the impact of various various upon role-play performance and its external validity. This study applied a 2 × 2 × 2 multiple-factor experiment design and employed a combined method of in vivo observation, stimulus control and scale testing to examine how the role-play varied through, situational content and confederate responsivity influenced role-play behavior It is proved that the behavior of the role-play varied through situational content, and when the situational format was idiographic interational content. less-demanding instruction and unstructured internction, the validity was the highest Besides the three mentioned variables,the multivaiariate regression analysis showed that variables of sex, age and previous assertion level all affected role-play behavior.

Key words: social skill, assertive bebavior, role-play assessment idiographic situation