Table 3.

Confirmatory factor analysis fit indices: Study 2 (NCT02906930)

Time point	Two factors				Three factors
	RMSEA	CFI	TLI	WRMR	RMSEA	CFI	TLI	WRMR
First set of CFAs—no double loadings
Baseline	0.110	0.937	0.929	1.239	0.112	0.936	0.927	1.233
Week 8	0.107	0.956	0.950	1.112	0.109	0.955	0.949	1.110
Week 26	0.116	0.948	0.942	1.215	0.117	0.948	0.941	1.211
Second set of CFAs—double loadings for Items 4, 14, 15, 16 and 19 as shown in previous EFAs
Baseline	0.084	0.965	0.959	0.940	0.085	0.964	0.957	0.937
Week 8	0.086	0.973	0.968	0.864	0.088	0.971	0.967	0.863
Week 26	0.082	0.975	0.971	0.863	0.083	0.974	0.970	0.856
Third set of CFAs—double loadings for Items 4, 14, 15, 16, 19 and 12 as suggested in modification
Baseline	0.076	0.971	0.966	0.867	0.078	0.970	0.965	0.863
Week 8	0.069	0.982	0.979	0.742	0.072	0.981	0.978	0.741
Week 26	0.076	0.978	0.975	0.806	0.077	0.978	0.974	0.797

Note: One item (“I get frustrated choosing what to wear”) was eliminated prior to the evaluation based on qualitative data.

Abbreviations: CFA, confirmatory factor analysis; CFI, comparative fit index; RMSEA, root mean square error of approximation; TLI, Tucker‐Lewis Index; WRMR, weighted root mean square residual.