Which of the following is an example of a random sampling procedure?
A) accepting the first set of 20 participants who volunteered to participate in the study
B) selecting participants such that every participant has an equal chance of being picked to participate in the study
C) selecting participants using the odd/even selection criteria, so that every other volunteer is selected for the study
D) accepting individuals based on preselected criteria for participation in the study

Question

Quizplus · Accepted Answer

A random sampling procedure involves selecting participants in a way that every participant has an equal chance of being chosen. Option B is the only option that fits this criterion. Option A involves selecting the first 20 participants which may introduce bias as these individuals may not be representative of the population. Option C involves selecting participants based on odd/even selection criteria which may introduce a pattern and bias in the sample. Option D involves selecting individuals based on preselected criteria, which is not random sampling.

Which of the Following Is an Example of a Random