. Author manuscript; available in PMC: 2015 Oct 1.

Published in final edited form as: Pers Individ Dif. 2014 Oct;69:98–103. doi: 10.1016/j.paid.2014.05.015

Table 1.

Internal Consistency and Test-Retest Estimates

Scale	α^a-Baseline	α-1 Month	α-6 Month	ICC^b
Extraversion	.87	.88	.88	.96
Agreeableness	.81	.83	.83	.94
Conscientiousness	.81	.81	.83	.95
Neuroticism	.82	.83	.84	.93
Openness	.78	.80	.79	.93

Note. α = Cronbach’s Alpha for internal consistency;

ICC = Intraclass Correlation Coefficient for test-retest reliability of scores