Choosing A Statistical Test Flashcards
What 3 things do u need to look for when choosing a stat test?
- Looking for a difference or association?
- Which experimental design is it?
- What lom is data?
Related design
Repeated measures/matched
Unrelated design
Independent groups
Decision 1 what r u looking for?
Differences / correlation
Decision 2 - what experimental design was used?
Unrelated design / related design
Decision 3 - what lom does the data represent?
Nominal - chi-squared - sign test -
Ordinal - man-Whitney - wilcoxon - spearman’s rho
Interval - unrelated t test - related t test - Pearson rho
Acronym to memorize table
Simon cowell wants more singers reciebeing unanimous praise
How to find crv that u need to use?
Determined by weather u r carrying out one or two tailed test
Determined by sig level p
You’ll need to know no of participants
Rule of ‘r’
If test has r in it - sig is when s is GREATER or equal than not less