A company develops a drug that they claim would make their consumers feel 'happier and more excited with life'. They plan to conduct an experiment to test this claim. In choosing their subjects, they plan to post invitations on a messageboard of a nearby university asking whether students would be interested in 'being the first to try out our new amazing drug!'. Those that volunteer are brought into company headquarters and given the drug. After a few hours of various activities, including lunch, they answer questions on a standard psychological test of happiness and engagement. Select all of the following problems that are likely to arise with such an experiment:
a. non-response.
b. undercoverage.
c. placebo effect.
d. poorly worded survey questions.
e. bias due to a voluntary response sample.

Undercoverage because the invitation does not cover for a good amount of university students. It is only given to university students that are nearly

Placebo effect occurs due to the fact that the drug is given to all the sample participants so it will be very difficult differentiating any effect that is above the placebo response. Therefore, the placebo effect is a main problem.

Voluntary Response Bias in survey sampling, this happens due to the fact that sample participants are volunteers that were self selected.

Sam1s Sam1s · Answer 2 · 2022-01-28T14:12:33+01:00

The following problems that are likely to arise with such an experiment is:

B. Undercoverage

C. Placebo effect.

E. Bias due to a voluntary response sample.

B. Under coverage -

Supply shortage as invitations do not cover many college students.
It is given only to college students who are approximately years old.

C. Placebo effect-

The placebo effect occurs because the drug is administered to all participants in the sample, so it is very difficult to distinguish a greater effect than the placebo reaction.

Therefore, the placebo effect is a big problem.

E. Bias due to a voluntary response sample.

The Spontaneous response bias in survey sampling.
This is due to the fact that the sample participants are self-selected volunteers.

Thus, the correct option is B, C and E.

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