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:In an attempt to overcome this limitation, Achenbach, Dumenici, and Rescorla [4] developed a new scoring system based on consensus between clinicians that allows better correspondence between the vastly adopted CBCL scales and the currently employed DSM-IV diagnostic criteria.
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