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Questions and Answers
Which of the following statements is true about statistical tests?
Which of the following statements is true about statistical tests?
- Statistical tests are not reliable and should not be used in research.
- Statistical tests always accept the alternate hypothesis at a 5% significance level.
- Statistical tests guarantee a 95% probability that results occurred due to manipulation of the independent variable.
- Statistical tests determine whether results are due to chance or to a variable. (correct)
What does it mean when the alternate hypothesis is accepted at a 0.05 significance level?
What does it mean when the alternate hypothesis is accepted at a 0.05 significance level?
- There is a 5% probability that the results occurred due to a manipulation of the independent variable. (correct)
- The results are due to chance.
- The results are not statistically significant.
- There is a 95% probability that the results occurred due to a manipulation of the independent variable.
What is the purpose of working to a P-value?
What is the purpose of working to a P-value?
- To determine the effect size of the results.
- To determine the statistical significance of the results.
- To determine the probability of obtaining results due to manipulation of the independent variable.
- To determine the probability of obtaining results due to chance. (correct)
