Applying the theory of planned behaviour to multiple sclerosis patients’ decisions on disease modifying therapy – questionnaire concept and validation

Table 5 Relative influence of PBMS domains

N = 177	Comparison of the domains’ relative impact
	% explained variance of intention		p-value
	intervention	control
Attitude	49	45	.76
Subjective social norm	31	21	.51
Perceived behaviour control	63	50	.25

The table illustrates the predictive power of single domains separately for the study groups. P values for differences between the percentages of explained variance as drawn from regression analyses were calculated using Fishers Z-test.

ISSN: 1472-6947