Table 3.

Cronbach's alpha values with the exclusion of items (Factor 1 and Factor 2 data without subdivisions).

	Mean scale with item excluded	Variance of scale with item exclude	Total corrected correlation of item	Cronbach's alpha with item excluded
Factor 1 (CD)
Item I	5.87	5.073	0.490	0.686
Item IX	7.36	6.756	0.528	0.672
Item X	6.40	4.221	0.612	0.606
Item XI	7.30	6.805	0.563	0.664
Factor 2 (CU)
Item II	6.20	4.345	0.496	0.702
Item III	5.07	2.359	0.623	0.572
Item IV	4.17	3.687	0.586	0.592

CD, capacity for self-determination; CU, capacity for understanding.