A researcher fails to reject the null hypothesis in a study. The study was repeated multiple times and that analysis revealed that the null hypothesis should have been rejected. What occurred in the original research?
1. A type I error.
2. A type II error
3. A standard error of the mean.
4. A type III error.
2
Rationale 1: Type I errors can only occur when the researcher does reject the null hypothesis and in actuality there is no difference between the group. Type I errors are considered false positives.
Rationale 2: A type II error is a false negative.
Rationale 3: Standard errors of the mean are considered in population statistics only when confidence intervals are calculated.
Rationale 4: There is no type III error.
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