Data were collected by an online questionnaire (see Appendix A) from voluntary and anonymous participants. The online survey system, developed by the NPM website team, randomly and automatically assigned each participant to a group (see Table 1). Participants in Group 1 visited the “Balance” section first, then moved on to the “Khubilai Khan Hunting” section and then completed the survey questions. Group 2 followed the same process, but visited the “Portraiture” section first. The research design occurred because quantitative data were collected as part of a larger project, for purposes beyond the scope of this paper (reference withheld during review). The important feature of the research design for this study is that each participant visited more than one web section.