If the results of an experiment allow rejection of the null hypothesis, _________. A) the effect of the independent variable must be large. B) similar results are likely to occur if the experiment is repeated C) the experiment proves that H ₀ is false. D) the effect of the independent variable must be large and the experiment proves that H ₀ is false. E) similar results are likely to occur if the experiment is repeated and the experiment proves that H ₀ is false.

Question

Quizplus · Accepted Answer

Rejecting the null hypothesis suggests that there is a statistically significant effect of the independent variable, but it does not necessarily indicate the size of the effect (large or small) or prove the null hypothesis false in an absolute sense. It simply means that the observed data are unlikely under the assumption that the null hypothesis is true. The statement about similar results likely occurring if the experiment is repeated refers to the concept of replicability, assuming the experiment is conducted under the same conditions.

If the Results of an Experiment Allow Rejection of the Null