ISRI - Information Systems Research Indicators

Construct: Actual Usage

Description
Indicators

Note 1: Following are presented the definitions found for the construct in the used references, together with the theory/model.
Note 2: The same construct can be present in more than one theory/model.
Note 3: If the construct was not proposed in the original theory/model, it is identified as "Additional to theory/model".

Definition: Not defined.

Theory/model: Additional to TAM
Reference: (Cheng, 2011)

Definition: The actual SMS usage behaviour including the number of monthly short messages sent and the frequency of SMS use.

Theory/model: Additional to TAM
Reference: (Y. B. Lu, Deng, & Wang, 2010)

Note 1: This list contains all the indicators (measuring variables) as defined by the authors when proposing/using/applying a theory/model in a context. It also includes the scales used to measure the variables.
Note 2: Some of the indicators are context-dependent.
Note 3: The same construct can be present in more than one theory/model.

Indicator	Scale	Context	Theory/Model	Reference(s)
I have accessed the program information pages on the e-learning system.	Likert 1-7, Never to More than once a day	e-Learning System	TAM	(Cheng, 2011)

I have accessed the news pages on the e-learning system.	Likert 1-7, Never to More than once a day	e-Learning System	TAM	(Cheng, 2011)

I have accessed the study units on the e-learning system.	Likert 1-7, Never to More than once a day	e-Learning System	TAM	(Cheng, 2011)

How many short messages do you send during a month?	Selection	Short Message Service (SMS)	TAM	(Y. B. Lu, Deng, & Wang, 2010)

How frequently do you use the SMS?	Selection	Short Message Service (SMS)	TAM	(Y. B. Lu, Deng, & Wang, 2010)