PEER MENTORS Flashcards
What are the three types of data?
Numerical
Ordinal
Nominal
Why may means not be directly comparable between data sets?
Many reasons
Which 4 things can influence test results?
SD
Significance
Sample size
Mean
Which test is used for dependent numerical data?
Paired t-test
Which test is used for independent numerical data?
Independent t test
Can a t-test be used in non-continual data?
No
What are ANOVA tables used for?
Multi-group data with 1 p value
Where does data have to lie within to give 95% confidence interval?
+/- 2 SDs
What analysis is done after an ANOVA to see which groups are significant?
Post-hoc analysis
Which tests are done on ordinal data?
Non-parametric
What should the correlation coefficient lie between?
-1 and 1
1 better result
What does a negative correlation coefficient suggest about two values in a data set?
They are inversely proportional
