Researcher: In an experiment, 500 families were given a medical self-help book, and 500 similar families were not. Ov...

Aidyn on May 25 at 03:36AM

D versus c?

Why is d and not c? Thanks

1 Reply

Victoria on May 25 at 07:18PM

Hi @Aidyn-Carlson,

D is correct as the researcher argues that because the families who received the medical self-help book visited the doctor less than families who didn't and because improved family health leads to fewer visits to the doctor, that having a medical self-help book improves overall family health. In making this argument, the researcher fails to recognize that having a medical self-help book could contribute to the reduced number of visits to the doctor and improved family health could contribute to the reduced number of visits to the doctor without having the medical self-help book cause improved family health or vice versa.

C is incorrect because it suggests that the researcher ignores the possibility that having a medical self-help book could cause improved family health and other different effects. This is irrelevant as the researcher's reasoning would remain questionable even if they claimed that having a medical self-help book causally contributed to improved family health and additional effects.

Hope this is helpful! Please let us know if you have any further questions.