This study investigated the effects of an intensive weekend human relations training workshop between black and white adults 20 to 53 years of age. The results were compared to a no-treatment control group. The total sample was 27. These consisted of 13 females and 14 males, including 2 black females and 3 black males. It was hypothesised: (1) that the treatment group would show significantly greater increase than the untreated group on self-acceptance; (2) that there would be a significantly greater reduction than the untreated group in prejudice (indirect and direct measure); (3) that communication style scores for the treated group would be significantly more constructive than for the untreated group at post-test; and (4) that significant differences would remain significant at delayed post-test. (This did not apply to communication style which was measured at post-test only).