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. 2006 Feb;41(1):58–78. doi: 10.1111/j.1475-6773.2005.00456.x

Table 3.

Factor Analysis with Varimax Rotation for Survey Responses

Variable* Insurer Trust Eigenvalue=12.76 Vulnerability Eigenvalue=1.15 Physician Advocacy Eigenvalue=1.06
IT 4 0.80623
IT 11 0.79970
Q 48 0.77425
IT 13 0.76436
Q 36 0.76390
IT 6 0.75783
IT 12 0.75311
IT 7 0.74847
IT 10 0.73856
IT 3 0.73144 0.32609
IT 5 0.71315
IT 8 0.66391
IT 9 0.65975 0.32942
Q 26 0.63179
Q 47 0.61724
IT 13 0.60356
Q 37 0.58104 0.32081
IT 1 0.57957 0.34435
Q 54 0.57752
IT 2 0.57215
Q 55 0.42787 0.31403
V 3 0.31081 0.56476
V 2 0.53093
V 1 0.43746
Q 41 0.43771
Q 31 0.38375 0.35774
Q 42 0.32125
Q 40 0.31061
PA 1 0.64650
PA 2 0.35315 0.58803
Q 35 0.35924 0.39173
PA 3 0.29355*
Q 43
*

In analyses when the Doctor Trust scale was included, the loading for this item consistently exceeded 0.4.

IT, item in final insurer trust scale (see Appendix A); V, vulnerability item; PA, physician advocacy item added to existing Doctor Trust scale; Q, item dropped during scale development. Items were dropped based on weak or duplicate loadings (e.g., Q31), or to avoid duplication of content, maintain internal consistency, include all relevant domains, and minimize the number of items while ensuring a high-performing measure.