EXSC 220 - Stats Review Quiz

Question 1

A Type II Error is the odds of saying there IS NOT a difference between groups when in fact there is one.

Accepted Answer

True

Question 2

Statistical Power is the likelihood that a study will detect an effect when there is an effect there to be detected.

Accepted Answer

True

Question 3

Alpha is typically before a study at 0.10 or 10% (willing to accept a 10% probability a difference was by chance).

Accepted Answer

False

Question 4

Descriptive statistics are used to analyze your main outcomes in a research study?

Accepted Answer

False

Question 5

A Type I Error indicates the odds of saying there IS a relationship, difference, etc., when in fact there is not.

Accepted Answer

True

Question 6

Inferential statistics (parametric and nonparametric) are used to draw conclusions about the hypotheses posed?

Accepted Answer

True

Question 7

Which of the following is NOT correct regarding Parametric statistics?

Accepted Answer

Does not require Homogenity of variance.

Question 8

A p-value of .40 indicates there is a 40% probability the differences in scores between groups may be by chance?

Accepted Answer

True

Question 9

Nonparametric tests need to have a normal distribution AND homogeneity of variance?

Accepted Answer

False

Questions 9