A researcher posts a radio advertisement offering $35 in exchange for participation in a short study. The researcher accepts the first eight people who respond to the advertisement. Which of the following statements is true about the sample?

It is a valid sample because the first eight people were selected to participate.
It is not a valid sample because it is not a random sample of the population.
It is a valid sample because money was offered to participants.
It is not a valid sample because it is only a short study.

Question

A researcher posts a radio advertisement offering $35 in exchange for participation in a short study. The researcher accepts the first eight people who respond to the advertisement. Which of the following statements is true about the sample?

 It is a valid sample because the first eight people were selected to participate.
 It is not a valid sample because it is not a random sample of the population.
 It is a valid sample because money was offered to participants.
 It is not a valid sample because it is only a short study.

anonymous · Answer

@satellite73