Social loafing is less likely to occur with strangers than with a highly valued group

Dr. Henderson is a psychologist conducting empirical research on personality variables. She asks participants to complete questionnaires that measure 100 different personality characteristics. Then she uses a statistical procedure in which she examines correlations among the 100 personality variables, with the assumption that if some of them cluster together, they may tap into the same underlying characteristic. The statistical procedure Dr. Henderson uses is known as

a) multiple regression. b) the t-test. c) factor analysis. d) analysis of variance.

Chapter 3 discussed a study in which people in a laboratory setting were instructed to pay close attention to one message and to ignore a second message that mentioned their own name. According to your textbook,

a. about one-third of the time, people noticed their name in the irrelevant message. b. people almost always noticed their name in the irrelevant message. c. people almost always noticed their name in the relevant message, but they almost never noticed their name in the irrelevant message. d. people were much more likely to notice their name in the irrelevant message than they would in a situation that has high ecological validity.