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:Another important difference between the study by Hendriks et al. (2014) and the current study is that to elicit the
Frontiers in Psychology | www.frontiersin.org 14 February 2018 | Volume 9 | Article 176
narratives, they showed their images one at a time (i.e., successive presentation in a…
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