Wayne worked in an office. He had no criminal record, had never had a complaint made against him about his work or his conduct, and had been a faithful employee for nearly 20 years. One day, Wayne followed his supervisor to his home and fatally shot him. The estate of the supervisor sued the company, claiming it should have been aware of Wayne's growing frustration with work. The company's best defense will be that
a. there was no way to foresee that the incident would happen.
b. the incident occurred away from the office.
c. the killing was the result of a personal conflict between Wayne and the supervisor.
d. even if the company had been aware of Wayne's difficulty with his supervisor, Wayne did not have any criminal history.

Dr. laguardia is a cognitive neuroscientist who is interested in the effect of brain concussions on the ability to recognize faces. he conducts a quasi-experimental study in which he examines football players before and after the regular season using the benton facial recognition test (a published, widely used measure of one's ability to recognize faces) to compare those who received concussions to those who did not. he finds that players who had concussions during the regular season performed worse on the benton facial recognition test than did players who did not experience which of the following is true regarding external validity in dr.laguardia's study? a. because dr. laguardia selected participants who actually experienced concussions, the study b. because dr. laguardia's study is a quasi-experiment, it is impossible to obtain c. because dr. laguardia's dependent variable was assessed in the laboratory, the study d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.