Table 4.

Spearman correlations between variables.

Questionnaire	SUSa	EECMb	TAMc
EECM	0.54	—d	—
TAM	0.58	0.86	—
Age	–0.24	–0.15	–0.03

^aSUS: System Usability Scale.

^bEECM: extended expectation confirmation model.

^cTAM: Technology Acceptance Model questionnaire.

^dNot applicable.