Selection bias can result from data samples
A) that are not random.
B) that compare groups engaged in different activities.
C) from people who make different choices.
D) all of the above.

Question

Quizplus · Accepted Answer

Selection bias can occur in any situation where the method of data collection, the sample frame, or the sample itself is not representative of the population from which it is drawn. This can happen when samples are not random (A), when comparing groups engaged in different activities (B), or from differences in choices among participants (C). All these scenarios can lead to a biased sample that does not accurately reflect the population, thus affecting the validity of the study's conclusions.

Selection Bias Can Result from Data Samples