Question

A researcher posts a magazine advertisement offering $24 in exchange for participation in a short study. The researcher accepts the first six people who respond to the advertisement. Which of the following statements is true about the sample?

A) It is not a valid sample because it is not a random sample of the population.

B) It is a valid sample because the first six people were selected to participate.

C) It is a valid sample because money was offered to participants.

D) It is not a valid sample because it is only a short study.

Answer 1

I also Think it's A) It is not a valid sample because it is not a random sample of the population.

Explanation:

Only those who see the advertising and react quickly and have time to participate in the study are studied. Also, the monetary bonus will be targeted at those who are not highly rich, as those with high income will not be rewarded.

Answer 2

A) It is not a valid sample because it is not a random sample of the population.

Explanation:

Only people who are exposed to the advertisement and act quickly and have time to join the study are researched.

Furthermore, the cash incentive would target peoples who are not extremely wealthy, as those with great income would not be incentivized.