Inferential Statistics

Question 1

What are the three levels of data/measurement?

Answer 1

Nominal - categories

Ordinal - rank order/rating scale

Interval - public units of measurements

Question 2

How do you decide which statistical test to use?

Answer 2

The level of measurement for the data collected

Whether it’s a test of difference or correlation

(If test of difference) whether it’s an independent groups design or repeated measures

Question 3

What does SOC stand for?

Answer 3

Spearman
Ordinal data
Correlational

Question 4

What does MOI stand for?

Answer 4

Mann Whitney
Ordinal data
Independent groups

Question 5

What does ChIN stand for?

Answer 5

Chi-squared
Independent groups
Nominal

Question 6

What does WORD stand for?

Answer 6

Wilcoxon
Ordinal
Repeated measures
Difference

Question 7

What is a Type 1 error in inferential statistics?

Answer 7

Refers to wrongly rejecting the null hypothesis

Usually when the probability level was too high e.g. 100%

Question 8

What is a Type 2 error in inferential statistics?

Answer 8

Refers to wrongly accepting the null hypothesis

Usually when the probability levels was too stringent e.g. 1%