ANOVA
Correlation/Regression
Hypothesis Testing
More ANOVA
Name that test
100

What is the difference between a one factor ANOVA and a two factor ANOVA?

The number of IVs

100

What numbers can the correlation coefficient rage from?

-1 to 1

100

What are the four steps for hypothesis testing?

1. State hypotheses

2. Set criteria

3. Calculate Statistic

4. Make decision

100

What is the formula for the F statistic for a one factor ANOVA?

MS between groups/ MS within groups

100

Researchers were interested in the factors that could be used to predict aggression.  They looked at an entire baseball season’s worth of news reports.  For each game, they recorded the temperature of the locale and the number of batters who were hit by pitched balls.

Regression

200

What is the difference between a t-test and a one factor ANOVA?

Number of groups

200

What are bivariate statistcs?

Two variables are being studied, and both are "free to vary"

200

What is the difference between a one tailed test and a two tailed test?

Direction

200

Why do we do post hoc tests?

Reduce alpha inflation and find where the significance is

200

Dr. Blue collected all of the data from the 25 participants during one day.  In this study, Dr. Blue compared the happiness of these married people to that of single people.  The mean for single people was obtained from a previously published national study.

single sample t-test

300
What does a 2x3 ANOVA mean?

2 levels of IV1 and 3 levels of IV2

300

What is the difference between correlation and regression?

Correlation: Strength of effect

Regression: Prediction

300

What components does a decision statement have to have?

Decision

Context

Direction

Comparison

P-value/Sampling error

300

What is partial eat squared and how do we calculate it?

Effect size

SS bg/ SS tot

300

Dr. Gerber examines the different ways in which infants react to their fathers and mothers.  Dr. Gerber measured how much infants smile when in the presence of their fathers and how much they smile when in the presence of their mothers.

Repeated measures t-test

400

Draw a one Factor source table (bonus points for formulas)

Good job!

400

What is the formula for a regression? (Be specific)

y^=bx+a

400

Give an example of a retain statement.

Retain Ho. Any difference between the groups may be due to sampling error

400
How can we tell from our results if there is an interaction effect?

If the lines on the graph are not parallel or, by rule of subtraction, if the two differences are not equal.

400

The results of Dr. Misinformation showed that illiteracy was related to depressive symptom reporting

Correlation

500

Draw a two factor ANOVA source table (bonus points for formulas)

Good job!

500

What is the formula for r?

nΣxy-ΣxΣy/

Square Root [nΣx^2-(Σx)^2][nΣy^2-(Σy)^2]

500

Give an example of a reject statement.

Reject Ho. This result is unlikely due to sampling error, p<0.05.

500

How do we know if there is a main effect?

If the marginal means are different

500

A study examining differences in life satisfaction between young adult, middle adult, and older adult men and women was conducted. Each individual who participated in the study completed a life satisfaction questionnaire. A high score on the test indicates a higher level of life satisfaction. Test scores are recorded below.

Two factor ANOVA

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