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. Author manuscript; available in PMC: 2011 Sep 1.
Published in final edited form as: Assessment. 2010 May 19;18(1):39–49. doi: 10.1177/1073191110368482

Table 3.

Comparison of Cronbach’s Alphas by Cognitive Impairment

Factor Self-Report Alpha
Intact1 Impaired2
Neuroticism .89 .86
Extraversion .85 .77**
Openness to Experience .71 .71
Agreeableness .73 .73
Conscientiousness .86 .82

Notes: **p < .01.

1

N = 149;

2

N = 270. Alphas compared using Feldt’s W (1987).