alpha.CI
(Package: psychometric) :
Confidence Interval for Coefficient Alpha
Computes a one-tailed (or two-tailed) CI at the desired level for coefficient alpha
● Data Source:
CranContrib
● Keywords: models, univar
● Alias: CI.alpha, alpha.CI
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alpha
(Package: psychometric) :
Cronbach's Coefficient Alpha
Coefficient alpha is a measure of internal consistency. It is a standard measure of reliability for tests.
● Data Source:
CranContrib
● Keywords: models, univar
● Alias: alpha
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artifacts
(Package: psychometric) :
Artifact Distribtutions Used in Meta-Analysis
Three artifact distributions are computed with each of these three functions which are then used to correct the observed sample-weighted mean correlation for attenuation. The artifacts are reliability in predictor, reliability in criterion, and range-restriction.
● Data Source:
CranContrib
● Keywords: models, univar
● Alias: aRxx, bRyy, cRR
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CAFAA
(Package: psychometric) :
Compound Attenuation Factor for Meta-Analytic Artifact Corrections
The compound attenuation factor is computed as the product of the mean for each artifact distribution (square root of artifact) when correcting for attenuation in a correlation coefficient.
● Data Source:
CranContrib
● Keywords: models, univar
● Alias: CAFAA
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CI.Rsq
(Package: psychometric) :
Confidence Interval for R-squared
Computes the confidence interval for a desired level for the squared-multiple correlation
● Data Source:
CranContrib
● Keywords: htest, models
● Alias: CI.Rsq
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CI.Rsqlm
(Package: psychometric) :
Confidence Interval for Rsq - from lm()
Computes the CI for a desired level based on an object of class lm()
● Data Source:
CranContrib
● Keywords: htest, models
● Alias: CI.Rsqlm
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CI.tscore
(Package: psychometric) :
Confidence Intervals for Test Scores
Computes the CI for a desired level for observed scores and estimated true scores
● Data Source:
CranContrib
● Keywords: htest, models
● Alias: CI.obs, CI.tscore
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CIr
(Package: psychometric) :
Confidence Interval for a Correlation Coefficient
Will construct the CI for a desired level given a correlation and sample size
● Data Source:
CranContrib
● Keywords: htest, models
● Alias: CIr
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CIrb
(Package: psychometric) :
Confidence Interval about Sample Weighted Mean Correlation
Produces a CI for the desired level of the sample weighted mean correlation using the appropriate standard error.
● Data Source:
CranContrib
● Keywords: htest, models, univar
● Alias: CIrb, CIrbar
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CIrdif
(Package: psychometric) :
Confidence Interval for the difference in Correlation Coefficients
Will construct the CI for a difference in two correlations for a desired level
● Data Source:
CranContrib
● Keywords: htest, models
● Alias: CIrdif
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