Description Usage Arguments Value Author(s) References Examples
Often recognized as Cronbach's alpha, Guttman's Lambda 3 can be used to estimate reliability when the data can be split in parallel forms.
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x |
Can be either a data matrix or a covariance matrix |
item.stats.max |
items statistics shown if the number of items are less than this value. |
missing |
how to handle missing values. |
lambda3 |
The unstandardized and standardized lambda3 estimate. |
item.stats |
If the input data was a covariance matrix then this is a table of reliability estimates if an item was dropped. If the input data is a data frame then the mean, standard deviation, and number of observations are also included. |
items |
The number of items. |
item.stats.max |
The maximum number of item to display the item.stats table (user specified). |
Tyler Hunt tyler@psychoanalytix.com
Cronbach L (1951). "Coefficient Alpha and the Internal Structure of Tests." Psychometrika, 16, 297-334. Guttman L (1945). "A Basis for Analyzing Test-Retest Reliability." Psychometrika, 10, 255-282.
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