Professor proust, a memory researcher, designs an experiment to test the hypothesis that reading picture books designed for children significantly enhances college students' memories of childhood. she asks participants to wri te about significant childhood memories, and to circle any events they remember from a list of common memories (such as getting lost in a store or breaking a leg, use the following terms to describe how professor proust should choose the p articipants and experimental/control groups for her study: • population • random sample • random assignment