Research finds that shy people deliberately keep conversations short and polite and avoid potentially controversial or embarrassing topics. Some researchers point to these findings to suggest that social anxiety is caused by excessive

One criticism of Freudian theory is that it

a. contains concepts that are difficult to operationalize. b. makes extensive use of intervening variables. c. ignores that fact that people's behavior varies from one situation to the next. d. does not view personality as a developing structure. e. neglects the unconscious aspects of motivation.

At the time of the accident, drivers aged 21 to 24 involved in fatal accidents are most likely to have been ____

a. texting on their cell phones b. talking on their cell phones c. changing lanes without signaling d. driving while intoxicated