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. 2019 Oct 23;7(10):e15544. doi: 10.2196/15544

Table 4.

Construct reliability and convergence validity.

Construct amd items Factor load Cronbach alpha Composite reliability Average variance extraction
Cognitive trust (CT)
.950 0.968 0.909

CT1: This physician was competent and effective in meeting my needs. 0.938



CT2: This physician was capable and proficient. 0.967



CT3: This physician was very knowledgeable in his or her medical field. 0.955


Affective trust (AT)
.903 0.940 0.838

AT1: This physician would act in my best interest. 0.885



AT2: If I required help, this physician would do his or her best to help me. 0.937



AT3: I think this physician is friendly and approachable. 0.924


Choice of physician (CP)
.899 0.937 0.832

CP1: I would be willing to choose this physician. 0.932



CP2: I would be willing to recommend this physician to others. 0.932



CP3: I have positive things to say about this physician. 0.872


Patient expertise (PE)
.906 0.941 0.841

PE1: I am knowledgeable about mHealth services. 0.916



PE2: I learn well about mHealth services. 0.921



PE3: I have rich experience in mHealth services. 0.914