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:Relationship satisfaction was assessed using Funk and Rogge‚Äôs (2007) four-item measure of relationship satisfaction. These items measured satisfaction with the participant‚Äôs romantic partner (e.g., ‚ÄúHow rewarding is your relationship with your partner?‚Äù and ‚ÄúI have a warm and comfortable relationship with my partner‚Äù). The items were summed to create an index of relationship satisfaction (Œ± = .92). Communal strengths were measured using a 10-item measure developed by Mills, Clark, Ford, and Johnson (2004). The Œ± for the current sample was .
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