One problem in the assessment of personality characteristics is the lack of predictive power of scales across time and situations with respect to overt behavior. Items from two scales of the Edwards Personality Inventory (Articulate and Center of Attention) considered suitable for behavioral assessment, were found to have a relatively high rate of occurrence in small group activities common to young adults. Eight behavioral categories for the Center of Attention Scale and six categories for the Articulate scale were derived. Two groups of young adults (N=7 and N=8) were observed for a 30-minute discussion period and recordings were made using both sets of categories. Subjects also responded to the two inventory measures. Results indicated that the correlation between the behavioral measures and the inventory measures was .82 for Articulate and .86 for Center of Attention. Correlation between the two behavioral measures of the two traits was .40; correlation between the inventory measures was .51. The findings suggest that at least some personality traits can be reliably and convergently measured by both behavioral assessment techniques and traditional inventory scales. (Author/NRB)