Four studies were conducted to investigate the relationship between communication and predictive accuracy. Subjects, students enrolled in various college speech and communication classes, completed the Allport-Vernon-Lindzey Study of Values, first in terms of their own values and then in terms of how they believed a specified target would respond. They also responded to the Conversation Self Report Inventory, which measures communication responsiveness and allows for the classification of communication patterns along mastery, flexible, and neural lines. In each study, subjects were placed into dyads and given one class session to get to know each other before completing the measures. Results indicated that (1) a communication encounter had a significant impact on predictive accuracy, (2) no single pattern of communication guaranteed success or failure in prediction making, (3) the same patterns of communication had differential effects on the prediction of similarities and differences for female and male predictors, (4) neutral rather than more responsive members of dyads were better predictors in newly formed dyads, and (5) communication responsiveness was positively related to communication satisfaction but inversely related to predictive accuracy. (FL)