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:Traditional,
dichotomous approaches to studying teams as either dispersed or collocated mask the configuration-based effects highlighted in this study, resulting in an obvious loss of accuracy (O’Leary and Cummings 2007).
Category: