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

Question

Quizplus · Accepted Answer

Kara is positing the existence of a third variable that could explain the observed association between omega-3 consumption and the outcome variable in the study. This suggests that she is thinking critically about the study and questioning the possibility of alternative explanations for the results. Option A and B are not applicable as there is no indication of Harold or Kara having obsessive-compulsive disorder. Option C is not appropriate as Kara is not questioning the statistical significance of the findings but rather the possibility of confounding variables influencing the observed association.

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