Construct

Construct details. (MORE INFO)

Construct: Perceptions of External Control


  • 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: The degree to which an individual believes that organizational and technical resources exist to support the use of the system.

Theory/model: TAM3
Reference: (Venkatesh & Bala, 2008; Venkatesh et al., 2003)


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.


IndicatorScaleContextTheory/ModelReference(s)
I have control over using the system.Likert 1-7Interactive online help desk system and multimedia system for property managementTAM(Venkatesh, 2000)
I have the resources necessary to use the system.Likert 1-7Interactive online help desk system and multimedia system for property managementTAM(Venkatesh, 2000)
I have the knowledge necessary to use the system.Likert 1-7Interactive online help desk system and multimedia system for property managementTAM(Venkatesh, 2000)
Given the resources, opportunities and knowledge it takes to use the system, it would be easy for me to use the system.Likert 1-7Interactive online help desk system and multimedia system for property managementTAM(Venkatesh, 2000)
The system is not compatible with other systems I use.Likert 1-7Interactive online help desk system and multimedia system for property managementTAM(Venkatesh, 2000)
I have control over using the system.Likert 1-7, Strongly Disagree to AgreeNot SpecifiedTAM(Venkatesh & Bala, 2008)
I have the resources necessary to use the system.Likert 1-7, Strongly Disagree to AgreeNot SpecifiedTAM(Venkatesh & Bala, 2008)
Given the resources, opportunities and knowledge it takes to use the system, it would be easy for me to use the system.Likert 1-7, Strongly Disagree to AgreeNot SpecifiedTAM(Venkatesh & Bala, 2008)
The system is not compatible with other systems I use.Likert 1-7, Strongly Disagree to AgreeNot SpecifiedTAM(Venkatesh & Bala, 2008)