12. Which of the following research methods would be least useful for obtaining naturalistic evidence? a. Case study b. Observational study c. Community-participation study d. Laboratory experimental study 13. Chaya prides herself on her willingness to try new things and scored very high on this trait on a personality ques- tionnaire she completed. However, direct observations of her behaviors this past week revealed that she was quick to shoot down novel ideas, she refused to go to the Ethiopian restaurant that her friends suggested, and she watched the same TV shows over and over. This discrep- ancy illustrates the limitations of a. observer reports. b. direct observation. C. self-reports. d. experimentation.