Table 2.

Rotated factor matrix—describes how each item loads on the underlying dimensions as named—and summary of item total correlations and Cronbach alphas after deletion of each variable

	Factors				Correlation with Total	Alpha after item removal
Activity	1	2	3	4
Factor 1
Walking a quarter mile	0.869	−0.023	−0.024	−0.003	0.767	0.858
Walking up 10 steps	0.821	0.070	−0.040	0.013	0.766	0.860
Standing 20 minutes	0.809	0.064	−0.065	0.031	0.737	0.863
Bending from standing	0.758	0.096	−0.109	0.100	0.701	0.869
Lifting 10 pounds	0.703	0.001	0.040	0.121	0.670	0.873
Doing heavy housework*	0.649	−0.171	0.389	−0.025	0.623	0.885
Factor 2
Getting in and out of bed or chairs	0.020	0.923	−0.032	−0.045	0.847	0.889
Using toilet	0.060	0.920	−0.063	−0.012	0.827	0.892
Getting around home	0.085	0.890	−0.052	−0.052	0.809	0.893
Dressing	0.017	0.782	0.013	0.029	0.826	0.891
Eating	−0.236	0.629	0.199	0.246	0.619	0.922
Bathing	0.171	0.626	0.205	−0.049	0.755	0.911
Factor 3
Managing money	−0.078	−0.059	0.909	0.026	0.682	0.840
Using telephone	−0.229	0.110	0.767	0.133	0.587	0.869
Preparing meals	0.086	0.186	0.734	−0.045	0.815	0.807
Shopping	0.330	−0.012	0.703	−0.081	0.765	0.828
Doing light housework	0.332	0.196	0.502	−0.071	0.705	0.834
Factor 4
Using fingers for grasping	0.115	−0.033	−0.004	0.845	0.589	0.498
Holding pen/pencil	0.028	0.029	0.051	0.835	0.581	0.540
Reaching*	0.373	0.014	−0.045	0.457	0.405	0.780

^*Item removed from factor to create final scale.