A) Means and standard deviations for each group

B) Percentages for each group

C) Medians and interquartile range for each group

D) A correlation coefficient

2What determines whether I should report means and standard deviations as my descriptive statistics, or if I should report medians and interquartile ranges?

A) Whether the predictor variable is categorical or continuous

B) Whether the outcome variable is categorical or continuous

C) Whether the outcome variable is normally distributed or skewed

D) Whether the predictor variable is normally distributed or skewed

3)The point of reporting descriptive statistics is to:

A) Infer whether there is likely to be a real effect in the population

B) Test whether the effect I found in my sample is likely to be real

C) Give readers a sense of the distribution of the data in my sample

D) Test for statistical significance

4) The point of inferential statistics is to:

A) Test whether the effect in my sample is likely to be real

B) All of these answers are correct

C) Infer whether there is likely to be a real effect in the population

D) Test for statistical significance

6) Which of the following is a correct definition of a p-value?

A) The probability that the null hypothesis is false

B) The probability that the null hypothesis is true

C) The probability of getting an effect at least as big as the effect I got if the null hypothesis is true

D) The probability of getting an effect at least as big as the effect I got if the null hypothesis is false