In a study for which the sample represents the population of interest but the treatments are not randomly assigned
A) the results can be extended to the population but a cause and effect conclusion cannot be made.
B) the results can be extended to the population and a cause and effect conclusion can be made if the results are statistically significant.
C) the results cannot be extended to the population unless they are statistically significant.
D) the results cannot be extended to the population unless the sample size is large.

Question

Quizplus · Accepted Answer

The lack of random assignment in the treatments means that while the sample may accurately represent the population, allowing for generalization of the results, it does not allow for the establishment of cause and effect due to potential confounding variables.

In a Study for Which the Sample Represents the Population