A HOSTILITY SCALE FOR THE CALIFORNIA PSYCHOLOGICAL INVENTORY - MMPI, OBSERVER Q-SORT, AND BIG-5 CORRELATES

Using two samples, we developed and validated a hostility scale that c an be scored from the California Psychological Inventory (CPI) and ser ves as an alternate for the Cook-Medley Hostility Scale (He; Cook & Me dley, 1954). The CPI Hostility (H) scale consists of 33 items that are either duplicates or close equivalents of specific Ho items, and the two scales correlate at least.90 in samples differing in sex. The H an d Ho scales show a similar pattern of correlations with conceptually r elevant MMPI scales and with observer-rated personality attributes tap ping Barefoot, Peterson, et al.'s (1991) five hostility categories of Hostile Affect, Cynicism, Aggressive Responding, Social Avoidance, and Hostile Attributions. These findings provide evidence for the equival ence of the two hostility scales, as well as external validation for t hose personality characteristics that are purported to underlie the co nstruct of hostility as tapped by both the original Ho scale and the n ew CPI H scale.