Statistics Refresher Quiz

What are the two main branches of statistics?

• Correlational statistics and experimental statistics

• Descriptive statistics and inferential statistics

• Predictive statistics and prescriptive statistics

• Qualitative statistics and quantitative statistics

What do descriptive statistics use to summarize and describe important features of the data?

• Graphical measures

• Qualitative measures

• Predictive measures

• Prescriptive measures

What do inferential statistics generalize findings from to make inferences about a population?

• Random sample

• Entire population

• Control group

• Treatment group

What is the probability used to determine if an experiment is statistically significant?

• p value

• Odds ratio

• Confidence interval

• Standard deviation

What does a p value greater than .05 indicate?

• The differences are statistically significant

• The differences are not statistically significant

• The study has a large sample size

• The study has a small effect size

What does clinical significance refer to?

• The practical value or importance of the intervention effect

• The probability of an event occurring in one group compared to another

• The standard deviation of the mean's sample distribution

• The variability or spread within a sample population

What is a common measure of clinical significance used to estimate the differences between two groups?

• Risk ratio

• Standardized mean difference

• Odds ratio

• Pearson's coefficient

What do researchers use to combine data from studies addressing the same or similar questions?

• Inferential statistics

• Descriptive statistics

• Meta-analysis

• Correlational analysis

What does confidence interval measure?

• The probability of an event occurring in one group compared to another

• The standard deviation of the mean's sample distribution

• The variability or spread within a sample population

• A range of values in which the true value most likely lies

What does reliability measure?

• Whether an assessment is measuring what it is intended to measure

• The extent to which the diagnostic tool produces stable and consistent results

• The probability of getting positive test results in people with the disorder

• The probability of getting negative test results among the people without the disorder