Statistical Tests Flashcards
What are the different questions in the flowchart to decide which test to use?
Can you use a parametric test?
Is the data correlational
Was independent group designs used
Is the data nominal
What is the first question?
Can you use a parametric test?
What is the only unique question?
Where is it located?
Is the data nominal?
First question on the no side
What is the order of the common questions?
Parametric
Correlation
Independent
What are the answers from left to right?
Pearson’s r
Unrelated t test
Related t test
Chi square
Sign test
Spearman’s rho
Mann whitney
Wilcoxon
What is the middle of the flowchart?
What is the right of the flowchart?
What is the left side of the flowchart?
What are the assumptions of the chi square?
It is a test of difference or association
The data in nominal and recorded as a frequency
Independent group design - unrelated (participants are in their own group)
What are the assumptions of Mann Whitney
Test of difference
Independent groups
Ordinal data - scores
What are the assumptions of a Wilcoxon?
Test of difference
Related data - Repeated measures or sometimes matched pairs (anything that isn’t independent)
Ordinal data
What are the assumptions of a sign test?
Test of difference
Nominal data
Repeated Measures
What are the assumptions of the Spearman Rho?
Ordinal data (2 sets of values)
Looking for a relationship (with correlational data)
What are the assumptions of a Pearsons test?
Both variables must be interval/ratio
Be normally distributed
Testing for correlation
Other info
Degrees of freedom
It is looking for a relationship
What are the assumptions of a related t tests?
Repeated measures or matched pairs
Test of difference
Interval data
What are the assumptions of an unrelated t test?
Independent groups
Interval data
Test of difference
How do you determine if a test is using parametric data?
It is interval data
What is a test of association?
A test which is looking to see if there is relationship between 2 variables
What is a test of difference
A test to see weather or not there is a difference between sets of data
What type of data are exam results?
Ordinal data - because interval data can’t be cut off (needs to be continuous data)
