The two experimental groups were further divided into sub-groups for analysis. The crowd workers were grouped into workers with a masters qualification from Amazon Mechanical Turk (Masters), and workers without the masters qualification (non-Masters). The graduate students were grouped based on the university they went to, as the researchers recruited them from two universities: one in the US and one in China (universities One and Two). However, the main focus of the study was to compare the crowd workers to the graduate students, so these sub-groups were distinguished for analysis purposes only.