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:Replicating our research using a clinical sample of individuals with SAD may produce different results, specifically for positive reaction time bias, as individuals with SAD tend to endorse fewer positive interpretations of ambiguous social sentences and exhibit a greater benign reaction time bias when compared to controls (Amir et al. 2012).
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