Development and psychometric properties of a brief measure of subjective decision quality for breast cancer treatment

Table 4 Internal consistency (Alpha) for four subjective decision quality scales

	Overall (n = 286)	Surgery (n = 286)	Chemotherapy (n = 195)	Radiation (n = 247)
Alpha with all items	0.77	0.85	0.82	0.78
Alpha if item removed
“Right for you”	0.76	0.85	0.86	0.81
Information	0.75	0.82	0.77	0.74
Time	0.71	0.81	0.76	0.75
Involvement	0.75	0.82	0.76	0.73
Regret	0.73	0.82	0.78	0.74
Satisfaction	0.74	0.81	0.77	0.72

ISSN: 1472-6947