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Results tagged with reliability
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user 4903
A measure is said to have a high reliability if it produces similar results under consistent conditions. DO NOT confuse reliability with validity (see tag wiki). DO NOT use for inter-rater reliability which has its own tag inter-rater
2
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1
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How to compute multidimensional omega with R
I need to perform a computation of reliability of a 5-point Likert scale having 6 items. … From a factor analysis I found that my scale is a multidimensional scale (3 factors), so I cannot use Cronbach's alpha to compute reliability. …
- 519
7
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3
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Whether to use EFA or PCA to assess dimensionality of a set of Likert items
This follows on from my previous question on assessing reliability.
I designed a questionnaire (six 5-points Likert items) to evaluate the attitude of a group of users toward a product. … I would like to estimate the reliability of the questionnaire for example computing Cronbach's alpha or lambda6. So, I need to check the dimensionality of my scale. …
- 519
18
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Assessing reliability of a questionnaire: dimensionality, problematic items, and whether to...
I want to estimate the reliability of my questionnaire which is composed of 6 items aimed at estimating the attitude of the participants towards a product. … Do I have remove the items affecting reliability?
Further, searching on the web I found there is another measure of reliability: the lambda6 of guttman. …
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