Aresearcher investigated the relationship between self-esteem and choice of a partner in a "getting acquainted" situation. to do this, she had students take a personality test and then she gave them feedback (based on random assignment) indicating either that the test found them to be "mature, insightful, and socially skilled" or "immature, inflexible, and overly critical." after receiving this feedback, students chose a partner to interact with by looking at photos of people of the opposite who were either high or low in physical attractiveness. the study just described is a(n)