In this study, we investigated the Five-factor model in the concurrent prediction of positive symptom schizotypy as measured by the Magical Ideation (Eckblad & Chapman, 1983) and Perceptual Aberration (Chapman, Chapman, & Raulin, 1978) scales and negative symptom schizotypy as measured by the Physical Anhedonia (Chapman, Chapman, & Raulin, 1976) and Revised Social Anhedonia (Eckblad, Chapman, Chapman, & Mishlove, 1982; Mishlove & Chapman, 1985) scales. Previous studies suggest that these measures reflect the core symptoms found in schizotypal and schizoid personality disorder (Bailey, West, Widiger, & Freiman, 1993). Negative symptoms were significantly predicted by Neuroticism (+), Extraversion (-), Openness (-), and Agreeableness (-) domains of the Revised NEO Personality Inventory (NEO-PI-R; Costa & McCrae, 1992). Additionally, positive symptoms were significantly predicted by Neuroticism (+), Openness (+), and Agreeableness (-). In addition, we examined the validity of lower order traits in de- scribing these symptoms of character pathology. These findings lend further support for the use of domain and facet scales of the NEO-PI-R in the identification of personality pathology.

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Two important issues in social support research are (a) the characteristics of support providers (e.g., enacted support and provider personality) that perceivers use to judge supportiveness and (b) the extent to which correlations between supportiveness and other constructs reflect the idiosyncratic perceptions of perceivers as well as the social consensus among observers. One-hundred daughter caregivers of parents with probable Alzheimer’s disease and their most important support providers completed measures of perceived and enacted support, dyad similarity, the personality characteristics of providers, and caregivers’ depressive symptoms. A number of different provider characteristics were linked to provider supportiveness. However, these links varied depending on whether they reflected the idiosyncratic perceptions of caregivers or the shared views of caregivers and providers. The link between perceived and enacted support was composed of both idiosyncratic and shared components, whereas the link between support and few depressive symptoms was composed only of idiosyncratic perception.

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