Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Hierarchical clustering of predictors using their Spearman correlation coefficients computed across all 73 aCFSs + 124 NFRs. (Y-axis) 1−|correlation coefficient|. The lower predictors merge in the dendrogram, the higher their correlation. Predictors in black boxes were selected as potential predictors to run our regression analysis (which includes further predictor selection steps).
