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In a between-groups design, we are...

Assessing differences between different groups of subjects

Assessing differences across time within the same group of subjects

Assessing differences between and within different groups of subjects

Assessing differences across two or more variables

In a within-groups design, we are...

Assessing differences across time within the same group of subjects

Assessing differences between and within different groups of subjects

Assessing differences across two or more variables

Assessing differences between different groups of subjects

Which of the following is the right way to state a research question comparing mean scores across three or more time periods on a continuous measure?

Is there a time effect on textbook sales across three time periods?

Is there a difference in textbook sales across three time periods (quarter 1, 2, and 3)?

Do textbook sales differ from time 1, time 2, and time 3?

All of these options

When comparing three or more time periods on some continuous measure, the independent variable is...

Nominal or ordinal scale

Nominal or interval scale

Ordinal or ratio scale

Ratio or nominal scale

When comparing three or more time periods on some continuous measure, the dependent variable is...

Interval or ratio scale

Nominal or interval scale

Ratio or ordinal scale

Ratio or nominal scale

The statistical test used to compare three or more time periods on a continuous variable is...

Repeated Measures ANOVA

One-way ANOVA

Factorial ANOVA

Mixed Design ANOVA

A reason why this particular ANOVA is used is because...

The three or more time periods being compared consist of the same people

The three or more time periods being compared consist of different people

The thee or more time periods being compared are samples from two different populations

Measurements are being taken across 2 or more time periods among the same people

Does adopting a vegetarian diet effect cholesterol levels across 1, 3, and 12 month periods?

Time - independent; cholesterol level – dependent

1, 3, 12 months - dependent; cholesterol level - independent

Time - dependent; cholesterol level – independent

1, 3, 12 months - independent; cholesterol level – dependent

Is there a change in grades from first, second, and third semesters after receiving tutoring help after the first semester?

Time - independent; grades – dependent

First, second, third semester - independent; grades – dependent

Time - dependent ; grades – independent

First, second, third semester - dependent; grades – independent

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