A significant difference between groups or conditions allows researchers to conclude that an effect exists in the population because they are able to reject the ______ in a significant test.
A) alternative hypothesis
B) statistical hypothesis
C) null hypothesis
D) critical region

Question

Quizplus · Accepted Answer

The null hypothesis is the assumption that there is no significant difference between groups or conditions. Rejecting the null hypothesis in a significant test indicates that the observed effect is likely not due to chance and is statistically significant. Therefore, a significant difference between groups or conditions allows researchers to conclude that an effect exists in the population because they can reject the null hypothesis.

A Significant Difference Between Groups or Conditions Allows Researchers to Conclude