Evaluate the collective function of references cited together in a given text segment.
Classify their combined role into one of the following categories: 'method', 'background', or 'result'.

Text:2010) and clinical (Roy et al. 2008) literature, a 2 X 2 repeated measures ANOVA was first used to examine bias patterns as a function of behavioral inhibition group (Median split: Low vs.
Category: