Learning Science in Informal Environments People, Places, and Pursuits (2009) / Chapter Skim
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Appendix B: Some Technical Considerations in Assessment
Appendix B: Some Technical Considerations in Assessment
Pages 322-326
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From page 322... ...
However, such interviews require selecting an individual interviewee (and often individuals prefer to self-nomi nate rather than accept a random sampling method) , locating the rest of the group to explain what is happening, ensuring that minors have appropriate child care, and finding a nearby yet quiet location to conduct the interview.
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From page 323... ...
Control Groups Because informal environments emphasize learning by choice, using random assignment of learners to treatment and control groups may sometimes be logistically impossible, upsetting to the learners, threatening to the study validity, or all of the above. In such cases, it may be desirable to reference a comparison group that is not a strict control but that provides some sense of plausible baseline behavior (data from visitors to other museums or exhibitions, literature that cites common knowledge, behaviors, or attitudes to a topic, etc.)
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From page 324... ...
Such methods are generally compromises, and researchers should always refer to their local institutional review board for approval of their specific data collection method. Time as a Measure of Learning In environments such as museums, botanical gardens, and zoos, where learners move freely through a physical space of options, time spent ("holding time" or "dwell time")
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From page 325... ...
For recent reviews of the literature on web surveys in informal science learning environments, including suggestions for effective design and usage, see Parsons (2007) , Yalowitz and Ferguson (2007)
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