While no research hypothesis is ever definitely false,failing to reject the null hypothesis in a study that has a high level of power allows one to
A)suspect that the research hypothesis may still be true.
B)conclude that the research hypothesis is most likely false.
C)make no statements about the research hypothesis.
D)reject the notion that the effect size has anything to do with statistical significance.

Question

Quizplus · Accepted Answer

A study with high statistical power means that it is highly likely to detect an effect if there is one. Therefore, if such a study fails to reject the null hypothesis, it suggests that the research hypothesis (which posits that there is an effect) is most likely false. This is because the study was well-equipped to find evidence of the effect but did not.

While No Research Hypothesis Is Ever Definitely False,failing to Reject