Harold Read About a Cross-Cultural Study Demonstrating an Association Between

Multiple Choice

Harold read about a cross-cultural study demonstrating an association between consumption of omega-3s and _____.Thinking it will help him,he wants to run to the health store to buy a bottle.His wife,Kara,is more skeptical.She thinks that the relationship might have to do with international differences in the propensity to seek help,rather than the health benefits of omega 3s.Kara is _____.

A) obsessive-compulsive disorder;wondering about the external validity of the study
B) obsessive-compulsive disorder;skeptical about the internal validity of the experiment
C) depression;questioning the statistical significance of the findings
D) depression;positing the existence of a third variable