Table II. Measurement, definitions and...

Table II.

Measurement, definitions and psychometric properties

Construct/item	Definition	CR	CA
Behavioral intention (based on Venkatesh and Davis, 2000)	“‘the degree to which a person has formulated conscious plans to perform or not perform some specified future behavior’” (Venkatesh et al., 2003)	0.97	0.97
Given that I have access to “Casa Mi”, I predict that I would use it
Assuming that I have access to “Casa Mi”, I intend to use it
Whenever possible, I intend to use “Casa Mi” in my life
Perceived usefulness (based on Davis, 1989)	“The prospective user’s subjective probability that using a specific application system will increase his or her job performance within an organizational context” (Davis et al., 1989, p. 985). “…is a measure of the individual’s subjective assessment of the utility offered by the new IT in a specific task-related context” (Gefen et al., 2003; p. 54)	0.88	0.88
Using “Casa Mi” would make my life more convenient
Using “Casa Mi” would increase my convenience at home
Using “Casa Mi” would make living at home easier
I find using “Casa Mi” useful in my life
Perceived ease of use (based on Davis, 1989)	“‘…the degree to which the prospective user expects the target system to be free of effort’” ((Davis et al., 1989, p. 985). “…is an indicator of the cognitive effort needed to learn and to utilize the new IT” (Gefen et al., 2003; p. 54)	0.88	0.87
Learning to operate “Casa Mi” would be easy for me
I would find it easy to get “Casa Mi” to do what I want it to do.
I would find “Casa Mi” easy to use
Interacting with the system does not require a lot of my mental effort
Compatibility (based on Moore and Benbasat, 1991)	“The degree to which an innovation is perceived as being consistent with the existing values, needs, and past experiences of potential adopters” (Rogers, 2003; Moore and Benbasat, 1991; p. 195)	0.97	0.97*
Using “Casa Mi” fits into my lifestyle
I think that using “Casa Mi” fits well with the way I like to live
Result demonstrability (based on Moore and Benbasat, 1991)	“…which reflected the ability to measure, ohserve, and communicate the results of using the innovation” (Moore and Benbasat, 1991; p. 203)	0.60	0.60*
I believe I could communicate to others the consequences of using “Casa Mi”
I would have difficulty explaining why using “Casa Mi” may or may not be beneficial
Visibility (based on Park and Chen, 2007)	“The degree to which the results of an innovation are observable to others” (Moore and Benbasat, 1991; p. 195)	0.62	0.51*
It is easy for me to observe others using products like “Casa Mi”
I have had a lot of opportunities to see products like “Casa Mi” being used
Trialability (based on Moore and Benbasat, 1991)	“The degree to which an innovation may be experimented with before adoption” (Rogers, 2003; Moore and Benbasat, 1991; p. 195)	0.75	0.69*
I’ve had a great deal of opportunity to try various products like “Casa Mi”
I know where I can go to satisfactorily try out various uses of a product like “Casa Mi”
Perceived security risk (based on Featherman and Pavlou, 2003)	Potential loss of control over personal information, such as when information about you is used without your knowledge or permission. The extreme case is where a consumer is “‘spoofed’” meaning a criminal uses their identity to perform fraudulent transactions (Featherman and Pavlou, 2003; p. 455)	0.85	0.84
I’m worried to use “Casa Mi” because other people may be able to access my account
I would not feel totally safe providing information about my house over the internet
I would not feel secure operating my house with my smart phone
Perceived performance risk (based on Featherman and Pavlou, 2003)	“The possibility of the product malfunctioning and not performing as it was designed and advertised and therefore failing to deliver the desired benefits” (Featherman and Pavlou, 2003; p. 455; Grewal et al., 1994)	0.89	0.84
“Casa Mi” might not perform well and create problems with the control over my house
It is likely that there will be something wrong with the performance of “Casa Mi” or that it will not work properly
“Casa Mi” may not perform well and process orders and information incorrectly
Perceived time risk (based on Featherman and Pavlou, 2003)	“Consumers may lose time when making a bad purchasing decision by wasting time researching and making the purchase, learning how to use a product or service only to have to replace it if it does not perform to expectations” (Featherman and Pavlou, 2003; p. 455)	0.86	0.85
Using “Casa Mi” would lead to a loss of convenience for me, because I would have to waste a lot of time fixing errors
Considering the investment of my time involved to switch to (and set up) “Casa Mi” makes it risky
The possible time loss from having to set-up and learn how to use e-billpay makes it risky
Perceived overall risk (based on Featherman and Pavlou, 2003)	A general measure of perceived risk when all criteria are evaluated together” (Featherman and Pavlou, 2003; p. 455)	0.87	0.87*
On the whole, considering all sorts factors combined, about how risky would you say it would be to sign up for and use “Casa Mi”?
Using “Casa Mi” to control my house would be risky

Construct/item	Definition	CR	CA
Behavioral intention (based on Venkatesh and Davis, 2000)	“‘the degree to which a person has formulated conscious plans to perform or not perform some specified future behavior’” (Venkatesh et al., 2003)	0.97	0.97
Given that I have access to “Casa Mi”, I predict that I would use it
Assuming that I have access to “Casa Mi”, I intend to use it
Whenever possible, I intend to use “Casa Mi” in my life
Perceived usefulness (based on Davis, 1989)	“The prospective user’s subjective probability that using a specific application system will increase his or her job performance within an organizational context” (Davis et al., 1989, p. 985).“…is a measure of the individual’s subjective assessment of the utility offered by the new IT in a specific task-related context” (Gefen et al., 2003; p. 54)	0.88	0.88
Using “Casa Mi” would make my life more convenient
Using “Casa Mi” would increase my convenience at home
Using “Casa Mi” would make living at home easier
I find using “Casa Mi” useful in my life
Perceived ease of use (based on Davis, 1989)	“‘…the degree to which the prospective user expects the target system to be free of effort’” ((Davis et al., 1989, p. 985).“…is an indicator of the cognitive effort needed to learn and to utilize the new IT” (Gefen et al., 2003; p. 54)	0.88	0.87
Learning to operate “Casa Mi” would be easy for me
I would find it easy to get “Casa Mi” to do what I want it to do.
I would find “Casa Mi” easy to use
Interacting with the system does not require a lot of my mental effort
Compatibility (based on Moore and Benbasat, 1991)	“The degree to which an innovation is perceived as being consistent with the existing values, needs, and past experiences of potential adopters” (Rogers, 2003; Moore and Benbasat, 1991; p. 195)	0.97	0.97*
Using “Casa Mi” fits into my lifestyle
I think that using “Casa Mi” fits well with the way I like to live
Result demonstrability (based on Moore and Benbasat, 1991)	“…which reflected the ability to measure, ohserve, and communicate the results of using the innovation” (Moore and Benbasat, 1991; p. 203)	0.60	0.60*
I believe I could communicate to others the consequences of using “Casa Mi”
I would have difficulty explaining why using “Casa Mi” may or may not be beneficial
Visibility (based on Park and Chen, 2007)	“The degree to which the results of an innovation are observable to others” (Moore and Benbasat, 1991; p. 195)	0.62	0.51*
It is easy for me to observe others using products like “Casa Mi”
I have had a lot of opportunities to see products like “Casa Mi” being used
Trialability (based on Moore and Benbasat, 1991)	“The degree to which an innovation may be experimented with before adoption” (Rogers, 2003; Moore and Benbasat, 1991; p. 195)	0.75	0.69*
I’ve had a great deal of opportunity to try various products like “Casa Mi”
I know where I can go to satisfactorily try out various uses of a product like “Casa Mi”
Perceived security risk (based on Featherman and Pavlou, 2003)	Potential loss of control over personal information, such as when information about you is used without your knowledge or permission. The extreme case is where a consumer is “‘spoofed’” meaning a criminal uses their identity to perform fraudulent transactions (Featherman and Pavlou, 2003; p. 455)	0.85	0.84
I’m worried to use “Casa Mi” because other people may be able to access my account
I would not feel totally safe providing information about my house over the internet
I would not feel secure operating my house with my smart phone
Perceived performance risk (based on Featherman and Pavlou, 2003)	“The possibility of the product malfunctioning and not performing as it was designed and advertised and therefore failing to deliver the desired benefits” (Featherman and Pavlou, 2003; p. 455; Grewal et al., 1994)	0.89	0.84
“Casa Mi” might not perform well and create problems with the control over my house
It is likely that there will be something wrong with the performance of “Casa Mi” or that it will not work properly
“Casa Mi” may not perform well and process orders and information incorrectly
Perceived time risk (based on Featherman and Pavlou, 2003)	“Consumers may lose time when making a bad purchasing decision by wasting time researching and making the purchase, learning how to use a product or service only to have to replace it if it does not perform to expectations” (Featherman and Pavlou, 2003; p. 455)	0.86	0.85
Using “Casa Mi” would lead to a loss of convenience for me, because I would have to waste a lot of time fixing errors
Considering the investment of my time involved to switch to (and set up) “Casa Mi” makes it risky
The possible time loss from having to set-up and learn how to use e-billpay makes it risky
Perceived overall risk (based on Featherman and Pavlou, 2003)	A general measure of perceived risk when all criteria are evaluated together” (Featherman and Pavlou, 2003; p. 455)	0.87	0.87*
On the whole, considering all sorts factors combined, about how risky would you say it would be to sign up for and use “Casa Mi”?
Using “Casa Mi” to control my house would be risky

Notes:

CA = Cronbach’s alpha; CR = composite reliability; AVE = average variance extracted; * Correlation between the two items

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