Higher Order Factor Analysis . These 16 items were then entered
into a PCA with a predetermined number of components to extract, 1, in
order to determine if total scores could be used and interpretable;
results suggested that a total score was supported, with each item
producing correlations between .428 and .828 (Table 3). Internal
consistency of the CALM was considered excellent with Cronbach’s α =
.910. Totals and subscale scores by section are presented in Table 3.
Table 3. CALM Scores