In a fictional study, a cognitive psychologist studied memory for names after a group activity that lasted 20 minutes. The researcher randomly assigned 120 participants to one of three conditions: (1) group members introduced themselves once (one introduction only), (2) group members were introduced by the experimenter and by themselves (two introductions), and

(3) group members were introduced by the experimenter and themselves, and they wore nametags throughout the group activity (two introductions and nametags).

a. What could the researcher do to redesign this study so it would be analyzed with a two-way betweengroups ANOVA? Be specific. (Note: There are several possible ways that the researcher could do this.)

b. What could the researcher do to redesign this study so it would be analyzed with a two-way mixeddesign ANOVA? Be specific. (Note: There are several possible ways the researcher could do this.)