| 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 elements in each column of 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 | 
| makeCorrLoadings | Correlation matrix from item factor loadings | 
| makeItems | Synthesise rating-scale data with given first and second moments and a predefined correlation matrix | 
| makeItemsScale | Generate scale items from a summated scale, with desired Cronbach's Alpha | 
| makePaired | Synthesise a dataset from paired-sample t-test summary statistics |