. Author manuscript; available in PMC: 2021 Mar 31.

Published in final edited form as: Psychol Assess. 2021 Mar;33(3):255–266. doi: 10.1037/pas0000978

Table 6.

Confirmatory Factor Analyses of the Six-Factor, 19-Item WSWS2-L and the One-Factor, 6-Item WSWS2-B

	QUITS Quit Day Data (N=1027)		BREATHE-C Week 4 Data (N=431)
Goodness of Fit Index	WSWS-R Model 1: 6 Factors, 19 Items	WSWS-RB: 1 factor, 6 Items	WSWS-R Model 1: 6 Factors, 19 Items	WSWS-RB: 1 factor, 6 Items
RMSEA	.057	.076	.066	.079
CFI	.970	.968	.957	.969
TLI	.962	.946	.947	.948
SRMR	.052	.027	.053	.031

Note. WSWS2-L = 19-item Wisconsin Smoking Withdrawal Scale 2. WSWS2-B = 6-item Brief Wisconsin Smoking Withdrawal Scale 2. RMSEA=Root Mean Square Error of Approximation, good fit <.06; CFI=Comparative Fit Index (CFI), good fit>.95; TLI=Tucker-Lewis Index, good fit >.95; and SRMR=Standardized Root Mean Residual (SRMR), good fit <.08.