alpha |
Calculate Cronbach's Alpha from a correlation matrix or dataframe |
correlateScales |
Create a dataframe of correlated scales from different dataframes of scale items |
eigenvalues |
calculate eigenvalues of a correlation matrix with optional scree plot |
lcor |
Rearrange columns in a data-frame to fit a predefined correlation matrix |
lexact |
Deprecated. Use lfast() instead |
lfast |
Synthesise rating-scale data with predefined mean and standard deviation |
makeCorrAlpha |
Correlation matrix from Cronbach's Alpha |
makeItems |
Synthetic rating-scale data with given first and second moments and a predefined correlation matrix |
makeItemsScale |
scale items from a summated scale |