. Author manuscript; available in PMC: 2011 Jan 1.

Published in final edited form as: Int J Eat Disord. 2010 Jan;43(1):77–87. doi: 10.1002/eat.20669

TABLE 2.

Pattern coefficients and item communalities for principal component analyses of the MBCQ item pool

Item	Total Sample (N = 342)						Men (n = 196)					Women (n = 146)
Item	I	II	III	IV	V	h²	I	II	III	IV	h²	I	II	III	IV	V	VI	h²
1. Check my biceps	.034	.757	−.238	−.069	.148	.563	1.008	−.123	−.059	−.169	.709	−.037	.095	−.110	.056	.858	−.049	.705
2. Abs in the mirror	−.102	.624	.340	.113	−.088	.605	.645	.193	−.067	−.103	.499	.539	−.134	−.023	.443	.030	.134	.729
3. Flex biceps in the mirror	.121	.860	−.108	.076	−.017	.813	.905	.038	.072	−.147	.761	.012	.136	.338	.635	.016	.048	.811
4. Compare my muscles to others	−.010	.859	−.031	−.007	.092	.772	.873	−.205	.003	.150	.716	−.044	−.061	.550	.483	.098	.081	.839
5. Compare overall leanness to others	.082	.454	.587	−.008	−.194	.776	.719	.023	−.169	.162	.657	.878	.093	−.047	.157	−.163	.074	.886
6. Compare muscle mass to athletes/celebrities	.289	.215	.506	−.131	.086	.714	.064	.366	−.199	.602	.787	.455	.071	.164	.428	−.056	−.041	.684
7. Compare my leanness to athletes/celebrities	.172	.006	.741	−.149	.131	.756	.009	.385	−.232	.606	.758	.733	−.088	.228	.071	−.111	−.078	.695
8. Others to feel my muscles	−.265	.191	.080	−.016	.868	.779	−.092	−.305	.185	.897	.579	.049	−.164	.634	.062	.436	.014	.835
9. Others to comment on my muscle	.142	−.040	.076	−.042	.781	.724	−.065	.004	.140	.754	.573	.000	.133	.143	−.051	.793	.006	.736
10. Pinch the fat around my abdomen and back	−.186	−.335	.851	.241	.093	.616	−.016	−.031	.417	.299	. −84	.971	−.029	−.207	−.337	.266	−.072	.842
11. Compare leanness of chest with others	1.001	−.115	.015	−.031	−. 095	.808	−.136	1.058	.023	−.119	.851	−.067	.881	−.222	.174	.049	.091	.718
12. Compare size of my chest with others	.972	−.025	−.009	−.085	−.076	.824	−.061	1.013	−.015	−.125	.820	.009	.912	−.068	.115	.117	.062	.848
13. Compare my shoulders with others	.720	.049	.093	−.055	−.040	.579	.084	.639	.031	.032	.525	.089	.446	.654	−.242	−.219	−.159	.708
14. Flex my chest muscles in the mirror	.739	.220	−.065	.026	−.008	.752	.462	.394	.103	.018	.674	−.005	.856	.176	−.106	.089	−.073	.853
15. Flex my muscles in the mirror	.419	.285	.000	.097	.143	.554	.404	.235	.223	.091	.547	−.042	−.055	.962	−.239	−.028	−.025	.698
16. Measure muscles with a tape measure	.254	−.240	.068	.802	.037	.748	−.139	.149	.846	.009	.737	.121	.080	−.118	−.289	−.018	.704	.518
17. Push my fat to accentuate the muscle	−.319	.271	.073	.769	−.114	.607	−.034	−.107	.871	−.015	.710	−.015	.061	−.447	.979	−.011	−.244	.711
18. Check muscles in most reflective surfaces	.518	.010	−.087	.390	.082	.554	.075	.482	.408	.004	.571	−.147	−.134	.038	−.082	.046	.557	.320
19. I pinch or grab my muscles	.336	.171	−.041	.398	.069	.490	.268	.014	.503	.203	.550	.000	.113	−.012	−.031	−.082	.796	.626
%Variance Explained	40.29	9.18	7.82	5.96	5.35		41.00	10.54	7.15	6.10		29.56	12.95	9.28	7.64	6.79	6.21
Factor I	1.00						1.00					1.00
Factor II	.601	1.00					.635	1.00				.206	1.00
Factor III	.356	.483	1.00				.265	.256	1.00			.452	.249	1.00
Factor IV	.249	.183	.067	1.00			.581	.593	.185	1.00		.380	.041	.477	1.00
Factor V	.437	.416	.294	.221	1.00							.251	.741	.321	.217	1.00
Factor VI												.231	−.055	.150	.239	.031	1.00

Notes: Communalities reflect extracted item communalities. Item content is paraphrased in first column. The wording for each item is abbreviated.