Random

What does a low p-value indicate in hypothesis testing?

• The results are likely due to chance.

• The sample size is too small.

• The results are statistically significant.

• The null hypothesis is true.

What does Cohen's d measure?

• The likelihood of a Type I error.

• The standardized difference between two means.

• The proportion of variance explained by the independent variable.

• The correlation between two variables.

What is the formula for the standard error of the mean?

• Variance divided by the sample size.

• Mean divided by the standard deviation.

• Standard deviation multiplied by the sample size.

• Standard deviation divided by the square root of the sample size.

What does the r-value (Correlation Coefficient) measure?

• The likelihood of a Type II error.

• The strength and direction of a linear relationship between two variables.

• The difference between group means.

• The variance within groups.

What is the purpose of a post-hoc analysis in ANOVA?

• To prevent Type II errors.

• To determine the sample size needed.

• To calculate the effect size.

• To find where the group differences are.

What does η2 (eta-squared) explain?

• The correlation between two variables.

• The likelihood of a Type I error.

• The difference between two means.

• The proportion of variance in scores of the dependent variable explained by the independent variable.