Table 8.

Item-Sum Correlations for DDS

Subscale	Item	Alpha After Item Exclusion	Discriminatory Power
Total diabetes-related distress	1 2	0.877 0.873	0.448 0.537
	3	0.873	0.531
	4	0.873	0.546
	5	0.871	0.588
	6	0.878	0.407
	7	0.875	0.475
	8	0.874	0508
	9	0.872	0.567
	10	0.875	0.479
	11	0.871	0.578
	12	0.879	0.380
	13	0.870	0.612
	14	0.872	0.552
	15	0.874	0.510
	16	0.874	0.512
	17	0.874	0.523
Emotional burden (EB)	2	0.689	0.586
	4	0.682	0.607
	7	0.764	0.359
	10	0.702	0.552
	14	0.716	0.516
Physician-related distress (PD)	1 5	0.749 0.683	0.625 0.762
	11	0.778	0.558
	15	0.789	0.534
Regimen-related distress (RD)	3 6	0.557 0.558	0.376 0.374
	8	0.584	0.319
	12	0.576	0.337
	16	0.524	0.440
Diabetes-related interpersonal distress (ID)	9 13 17	0.659 0.701 0.693	0.622 0.583 0.592