acquaintance rating consistently predicted deviance, with the exception of emotional stability in predicting self-reported deviance in study 2. further, the magnitudes of the relationship between acquaintance rating of personality with deviance were comparable to those found for self-rated personality. Thus in general, if only one measure of personality can be obtained either source may yield similar results. however, acquaintance rating may serve as a superior choice when attempting to guard against issues of common method variance that may occur when personality and deviance are obtained from the same source