It might not be surprising then to note that the relationships between histrionic PD and the facets of neuroticism contributed six of the effect sizes for which the assumption of homogeneity was rejected. The FFM hypotheses specified that histrionic PD should obtain high scores on two facets of neuroticism (i.e., depressiveness and self-consciousness). These hypotheses would be soundly refuted if only the MCMI-III was administered and marginally supported only by the PDQ. Most central to the FFM conceptualization of histrionic PD, however, are the facets of extraversion (Widiger, Trull, et al., 2002), for which the FFM hypotheses are confirmed well by the SCID-II, the SNAP, and most strongly by the MCMI-III. As seen in Table 3, these six facets of extraversion for histrionic were instances for which the assumption of homogeneity was rejected. However, the instrument-specific values from Table 5 indicate that these differences were more a matter of degree (e.g., the PDQ generally provided values of lower magnitude) than of direction.
