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:Subsequently, participants were asked to complete an Italian version3 of the TBGI (Dasgupta & Rivera, 2006) and to provide their answers on a 7-point scale, ranging from 1 (strongly disagree) to 7 (strongly agree).
Category: