All Questions
Tagged with validity cronbachs-alpha
9 questions
8
votes
2
answers
6k
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How high is too high with Cronbach's alpha?
Someone in my organization just sent me a scale they developed (modified items from five separate scales used in published research) to measure an employee's readiness for change. They tested the ...
- 2,939
5
votes
1
answer
17k
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How are Cronbach's Alpha and Average Variance Extracted different in their interpretation?
Background: I do survey research on Information Systems. I have a latent construct that I measure with six survey items and reflective measurement model. Each survey item has a seven point Likert ...
- 69.5k
1
vote
1
answer
6k
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item-total correlation vs. inter-item correlation
I am assesing the reliability and validity of an 16-item multuiple choice test supposed to test language skills. Cronbach's apha is "questionable" with .65. I am having troubles interpreting the ...
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- 1
0
votes
1
answer
79
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Is it always needed to do a validity test for variables?
Let's say I have one variable called "perceived image", which is measured with 6 items (questions) that I adapted from previous literature. If I have a Cronbach's alpha > 0.7 (for reliability), do I ...
- 128k
2
votes
2
answers
843
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Why does a factor need to be internally consistent?
I'm wondering exactly what the question says: Why does a factor (as linear combination of its items) need to be internally consistent?
If I want to use a factor found in a factor analysis as a ...
- 58.8k
0
votes
0
answers
56
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Are reliability and validity measures necessary for all parts of a survey
I am conducting analysis on a questionnaire which was a three-part study, not three separate studies. I asked the same exact set of validated scale questions for specific constructs for three ...
- 1
0
votes
0
answers
78
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Cronbach alpha application
I developed a questionnaire to measure some factors influence in decision using related literature and after some interviews. Now I have to validate and see how to distribute among the target group. I ...
- 58.8k
0
votes
0
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31
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Reliability/validity required for the mean of combined items?
Let's just say that the 4 items making one construct are not well correlating (for whatever reason) and their Cronbach is 0.62 despite loading into 1 factor. Is there an alternative way to proceed? ...
- 121
4
votes
2
answers
7k
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Cronbach's Alpha in Pilot Study: do I need to eliminate items if alpha is already > 0.7
In the Pilot Study, I am trying to confirm reliability of my scales:
I'm performing Cronbach’s alpha test on 5 items that represent one construct of my research model (IV). I'm receiving α = .710 ...
- 131k