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. 2013 Oct;19(10):739–745. doi: 10.1089/tmj.2013.0009

Table 5.

Contemporaneous and Longitudinal Validity: Pearson Correlation Coefficients

	SELF-DIRECTED INTERVENTION		COACH-LED INTERVENTION
CONSTRUCT	CONTEMPORANEOUS	LONGITUDINAL	CONTEMPORANEOUS	LONGITUDINAL
Perceived usefulness	0.43^a	0.12	0.33^a	0.37^a
Perceived ease of use	0.36	0.02	0.50^a	0.33
Affect	0.46^a	−0.25	0.39^a	0.26
Social influence	0.21	0.36	0.18	−0.03
Compatibility	0.36	−0.12	0.36^a	0.22
Self-efficacy	0.24	−0.06	0.03	0.20
Concern	−0.22	0.32	−0.16	−0.27
Intention to use	0.27	−0.01	0.33^a	0.37^a

^{^a}

p<0.05.