Symbols and Abbreviations
What do we call the IV when talking about ANOVA tests?
Factor
What is the term for a parametric procedure for determining whether significant differences occur in an experiment with 2 or more sample means?
ANOVA or analysis of variance
How do we interpret the results of an experiment based on p value?
If it’s less than .05 results were significant and is greater than .05 they were not
What does this formula solve for?
k - 1
dfbn
What is ANOVA short for?
One-way analysis of variance
What is the term for the probability of making a Type I error?
Experiment-Wise Error
What is a Type I error?
False positive
When solving for HSD, what are you solving for?
Tukey’s HSD Test
What is ANOVA also known as (hint: ___-test)
F-test
What is the type of ANOVA that is performed when 1 IV is tested?
Between-subjects
What are degrees of freedom?
Number of scores in a sample that reflect variability in the population
How do you find k?
k = # of levels in an experiment
What are the different conditions of the IV called in ANOVA experiments
Level/Treatment
What is the term for when we compare all possible pairs of level means from a factor, 1 pair at a time to determine which means differ significantly?
Post Hoc comparisons
What is symbol for sum of x squares?
Uppercase sigma followed by an X
If you’re solving for this, you’re solving for what?
SSbn/dfbn
MSbn
*Follow-up: What in the formula told you that this is what you’re solving for?
What does this symbol represent?
MSbn
Mean of Squares between groups
What describes the variability in scores within conditions of an experiment?
Mean Squares, Within
MSwn
What is variance?
Indicates how much scores are spread out around a mean
What is the formula for eta squared?
SSbn/SStot
*Note: Formula sheets are provided on exams