Field experiments are considered to be high in which of the following?

Which of the following is one of the primary benefits of the case study method of conducting research?

A) They can be helpful in providing existence proofs. Correct. Existence proofs, which are demonstrations that a particular psychological phenomenon can occur, are actually assisted by case study research. B) They have a very high level of external validity. Incorrect. In fact, one problem with case studies is that they often have a low level of external validity. C) They are the only type of research that allows for cause-and-effect conclusions. D) They are resistant to heuristic biases that can skew results.

According to the chapter Some Like It Hotabout personality and situational predictors of aggression, was

there a sex difference in aggressionamong participants from Study 2 (mating competition study)? (a) yes, men were more aggressive (b) yes, women were moreaggressive (c) no, there was not a significant sex difference in aggression (d) only female participants were able to allocate hot sauce in Study 2