Measuring social desirability bias in a multi-ethnic cohort sample: its relationship with self-reported physical activity, dietary habits, and factor structure

Table 1 Exploratory (EFA) and Confirmatory Factor Analysis (CFA) derived Absolute and Comparative fit measures of original and short form versions of the Marlowe-Crowne Social Desirability Scale (MCSDS)

						RMSEA
s/n		Factor	n	χ2	SRMR	estimate	90% CI	CFI	TLI
1	32-item	One factor	2988	3777.5*	0.960	0.0490	0.047, 0.050	0.682	0.660
2	32-item (Paulhus and Reid, 1989)	Two factors	2988	4920.3*	0.111	0.0570	0.055, 0.058	0.572	0.545
3	11-item (short-form A; Reynolds, 1982)	One factor	2988	421.8*	0.073	0.0540	0.049, 0.058	0.849	0.812
4	12-item (short-form B; Reynolds, 1982)	One factor	2988	523.9*	0.075	0.0540	0.050, 0.058	0.844	0.810
5	13-item (short-form C; Reynolds, 1982)	One factor	2988	703.4*	0.081	0.0570	0.054, 0.061	0.816	0.779
6	20-item (short-form XX; Strahan and Gerbasi, 1972)	One factor	2988	1387.3*	0.090	0.0490	0.047, 0.051	0.770	0.743
7	10-item (short-form X1; Strahan and Gerbasi, 1972)	One factor	2988	280.9*	0.074	0.0480	0.043, 0.054	0.826	0.777
8	10-item (short-form X2; Strahan and Gerbasi, 1972)	One factor	2988	267.2*	0.073	0.0470	0.042, 0.052	0.834	0.786
9	14-item^a (Ramanaiah et al., 1977)	Two factors	2988	886.3*	0.095	0.0600	0.056, 0.063	0.678	0.614
10	21-item	Two factors (CLI, & IIM)	1494^a	481.7*	0.068	0.032	0.029, 0.036	0.915	0.905
11	21-item	Two factors (CLI, & IIM)	2988	812.5*	0.061	0.033	0.031, 0.036	0.917	0.907
12	21-item	Two factors (CLI, & IIM)	1494^a	418.9*	0.060	0.031	0.028, 0.035	0.931	0.914

note: s/n 1–11 denote parameter estimates from CFA; s/n 12 denote parameter estimates from EFA; item 1 was removed from all analyses due to participants’ concerns; 14-item^a: Item 1 was excluded, thus CFA was conducted with the remaining 14 items of the 15-item version by Ramanaiah et al.; CLI: Civil & Lawful Impression; IIB Integrous Image Boosting; the modified 21-item version (s/n 10–12) was based on the final EFA two-factor solution that best fit of current data; 1494^a represents the split-half sample size; χ2 refers to the model chi-square result; RMSEA is the root mean square error of approximation; CFI refers to the comparative fit index; TLI refers to Tucker–Lewis index; SRMR is the standardized root mean squared residual index; 90% CI refers to the 90% confidence interval; values indicated with the asterisk * sign represents significant chi-square results;

ISSN: 1471-2458