TABLE 2.

Measurement scale.

Concept/Context	Construct	Measurement scale source
Technology Acceptance	Perceived Usefulness	Adopted from Lee et al. (2005)
	Perceived Ease of Use	Adopted from Lee et al. (2005)
	Perceived Enjoyment	Adopted from Lee et al. (2005)
	Attitude	Developed based on Lee et al. (2005)
	Behavioral Intention	Adopted from Lee et al. (2005)
Benefits and disadvantages e-learning	Learning Flexibility	Modified and further developed from Jefferson and Arnold (2009)
	Time Flexibility	Developed based on Al-Qahtani and Higgins (2013)
	Social Isolation	Modified from Becker et al. (2013)