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THE FIVE FACTORS OF PERSONALITY AND INTERPERSONAL ...

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item adjective list. McCrae and Costa (1985) examined the correlations among the<br />

lexical factors and the self and peer ratings on the NEO-PI The adjective measures and<br />

the NEO-PI self-report measures of neuroticism, extraversion, and opeimess were<br />

positively correlated. Convergent correlations above .50 were also obtained between the<br />

adjective measures and NEO-PI spouse ratings on the extraversion, neuroticism, and<br />

openness factors. The resuhs indicated that the NEO-PI factors corresponded well to<br />

factors developed from the lexical trah tradition<br />

A later study again examined the correspondence of the five factors between<br />

lexical and psychometric measures of personality across observers. McCrae and Costa<br />

(1987) added two subscales to assess agreeableness and conscientiousness to the NEO-PI<br />

Internal consistency for agreeableness was .89 for within peer-rating and .56 for within<br />

self-raings. McCrae and Costa (1987) stated that the low internal consistency of selfreports<br />

was due to the inclusion of only 10 items in the self-report scale and to lower<br />

average interitem correlations Internal consistency for Conscientiousness was 91 for<br />

within peer-ratings and .84 for within self-ratings. When these scales were combined<br />

with the neuroticism, conscientiousness, and openness scales, then factor analyzed, the<br />

five factors emerged This analysis provided support for the validity of the NEO-PI<br />

McCrae and Costa (1987) then administered the revised measure and adjective<br />

lists to more than 1000 peers of the BLSA sample and requested they rate the subjects on<br />

these personaHty scales. According to McCrae and Costa (1987), convergent validity<br />

would be evident if there were agreement across observers and instruments The resuhs<br />

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