PSY 203 exam 2

The following are assumptions for ANOVA except:

• Variance must be homogenous

• There should be 4 or more independent groups

• Data must be normally distributed

• Randomly selected

ANOVA testing is used for ...

• Test for one mean

• Test for two means

• Test for three or more means

• Test for independence between two variables

Determine whether the following scenario should use a one-way ANOVA test or two-way ANOVA test:

A researcher want to determine whether there is an interaction between physical activity level and gender on blood cholesterol concentration in children.

• one-way ANOVA test

• two-way ANOVA test

Determine whether the following scenario should use a one-way ANOVA test or two-way ANOVA test:

A group of psychiatric patients are trying three different therapies: counseling, medication and biofeedback. They want to see if one therapy is better than the others.

• one-way ANOVA test

• two-way ANOVA test

How many independent and dependent variables are there in a One-Way Within Groups ANOVA?

• 1 independent variable and 1 dependent variable

• 2 independent variables and 1 dependent variable

• 1 independent variable and 3 dependent variables

• 1 independent variable and 2 dependent variable

ANOVA stands for ...

• Analysis of Variation

• Analysis of Variance

• Analysis of Variability

• A Non-Visual Analysis

Which of the following statistical concepts is used to test differences in the means for more than two independent populations?

• Multiple t tests

• Analysis of variance

• Confidence Interval

• Regression Analysis

ANOVA tests use which of the following distributions?

• F

• t

• Z

• Chi-square

Used only when F-stat is significant

• SCHEFFE’S TEST

• POST- HOC TEST

• TWO-WAY ANOVA

• ONE-WAY ANOVA

used to adjust alpha and lower the probability of errors when you run too many tests

• SCHEFFE’S TEST-

• POST- HOC TEST

• TWO-WAY ANOVA

• BONFERRONI CORRECTION