ANOVA PSY 2301 Review

Symbols and Abbreviations

100

What do we call the IV when talking about ANOVA tests?

Factor

200

What is ANOVA short for?

One-way analysis of variance 

300

What is ANOVA also known as (hint: ___-test)

F-test

400

What are the different conditions of the IV called in ANOVA experiments 

Level/Treatment

500

What does this symbol represent? 

MS_bn

Mean of Squares between groups

Name that term

100

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

200

What is the term for the probability of making a Type I error?

Experiment-Wise Error

300

What is the type of ANOVA that is performed when 1 IV is tested?

Between-subjects

400

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

500

What describes the variability in scores within conditions of an experiment?

Mean Squares, Within 

MS_wn

Relevant Review

100

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

200

What is a Type I error?

False positive

300

What are degrees of freedom?

Number of scores in a sample that reflect variability in the population

400

What is symbol for sum of x squares?

Uppercase sigma followed by an X

500

What is variance? 

Indicates how much scores are spread out around a mean

Formulas

100

What does this formula solve for?

k - 1

df_bn

200

When solving for HSD, what are you solving for?

Tukey’s HSD Test 

300

How do you find k?

k = # of levels in an experiment

400

If you’re solving for this, you’re solving for what?

SS_bn/df_bn

MS_bn

_{*Follow-up: What in the formula told you that this is what you’re solving for?} 

500

What is the formula for eta squared?

SS_bn/SS_tot

_{*Note: Formula sheets are provided on exams}