. Author manuscript; available in PMC: 2009 Dec 1.

Published in final edited form as: Pers Individ Dif. 2008 Dec;45(8):732–737. doi: 10.1016/j.paid.2008.07.021

Table 1.

Results of Confirmatory Factor Analyses

Model	χ²	df	NNFI	RMSEA	CFI
1. EFA 5-factor model, BIS and BAS uncorrelated	685.79	166	.87	.06	.90
2. EFA 5-factor model, BIS and BAS correlated	583.79	160	.89	.06	.92
3. Carver & White 4-factor model, BIS and BAS uncorrelated	782.33	167	.86	.07	.89
4. Carver & White 4-factor model, BIS and BAS correlated	709.26	164	.87	.07	.89
5. Two factors (BIS, BAS) uncorrelated	2065.94	170	.62	.12	.64
6. Two factors (BIS, BAS) correlated	2014.04	169	.63	.12	.65

Note. EFA = exploratory factor analysis. BIS = Behavioral Inhibition Scales; BAS = Behavioral Activation System scales. NNFI= Non-Normed Fit Index; RMSEA = root mean square error of approximation. CFI = Comparative Fit Index.