A) allows us to establish internal validity B) allows us to rule out the effects of every variable except for the independent variable C) both a and b D) neither a nor b A) allows us to establish internal validity B) allows us to rule out the effects of every variable except for the independent variable C) both a and b D) neither a nor b

Exam 11: Expanding the Simple Experiment: The Multiple Group Experiment

To test to see if the functional relationship between two variables is "u"-shaped, you need at least _____ levels of the independent variable.

(Multiple Choice)

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Question 21

According to the text, to pin down the functional relationship between variables you will usually need _____ levels of the independent variable.

(Multiple Choice)

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Question 22

Which of the following would NOT be a source of within group variability?

(Multiple Choice)

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Question 23

Random assignment

(Multiple Choice)

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Question 24

If people perform poorly when not motivated, well when moderately motivated, and poorly when highly motivated, the relationship between motivation and performance is

(Multiple Choice)

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Question 25

Using more than two levels of an independent variable can

(Multiple Choice)

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Question 26

In analysis of variance, the index of variability within groups and the index of the variability between groups are often referred to as

(Multiple Choice)

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Question 27

The reason why a particular participant's score was not the same as the other participants' average score (all of whom received the same treatment) is due to

(Multiple Choice)

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Question 28

Which of the following is an advantage of using a multiple group experiment over a simple experiment?

(Multiple Choice)

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Question 29

If the null hypothesis is true, variability between groups reflects

(Multiple Choice)

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Question 30

Use analysis of variance rather than a t test whenever you are dealing with

(Multiple Choice)

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Question 31

If you have 3 levels of the independent variable, your trend analysis can reveal

(Multiple Choice)

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Question 32

In analysis of variance, indexes of variability within and between groups consist of the

(Multiple Choice)

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Question 33

Which would be the least useful advice for ruling out the effects of confounding variables

(Multiple Choice)

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Question 34

The F test would be preferable to the t test for which of the following designs?

(Multiple Choice)

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Question 35

If a treatment effect exists

(Multiple Choice)

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Question 36

In an experiment involving four different groups, each consisting of 5 subjects, the degrees of freedom for your error term equals

(Multiple Choice)

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Question 37

To pinpoint specific differences between pairs of population means,

(Multiple Choice)

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Question 38

If the calculated F score obtained in an analysis of a three-group design is larger than the "critical F,"the investigator may conclude which two of the following?

(Multiple Choice)

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Question 39

An F test is based on the idea that, if the null hypothesis is true, the top part of the F ratio tends to be

(Multiple Choice)

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Question 40

Showing 21 - 40 of 57

To test to see if the functional relationship between two variables is "u"-shaped, you need at least _____ levels of the independent variable.

According to the text, to pin down the functional relationship between variables you will usually need _____ levels of the independent variable.

Which of the following would NOT be a source of within group variability?

Random assignment

If people perform poorly when not motivated, well when moderately motivated, and poorly when highly motivated, the relationship between motivation and performance is

Using more than two levels of an independent variable can

In analysis of variance, the index of variability within groups and the index of the variability between groups are often referred to as

The reason why a particular participant's score was not the same as the other participants' average score (all of whom received the same treatment) is due to

Which of the following is an advantage of using a multiple group experiment over a simple experiment?

If the null hypothesis is true, variability between groups reflects

Use analysis of variance rather than a t test whenever you are dealing with

If you have 3 levels of the independent variable, your trend analysis can reveal

In analysis of variance, indexes of variability within and between groups consist of the

Which would be the least useful advice for ruling out the effects of confounding variables

The F test would be preferable to the t test for which of the following designs?

If a treatment effect exists

In an experiment involving four different groups, each consisting of 5 subjects, the degrees of freedom for your error term equals

To pinpoint specific differences between pairs of population means,

If the calculated F score obtained in an analysis of a three-group design is larger than the "critical F,"the investigator may conclude which two of the following?

An F test is based on the idea that, if the null hypothesis is true, the top part of the F ratio tends to be

Psychology, Science, and You

Ethics and Validity

Generating Research Hypotheses

Reading and Evaluating Research

Measuring and Manipulating Variables: Reliability and Validity

Choosing the Best Measure for Your Study

Introduction to Descriptive Methods

Survey Research

Internal Validity

The Simple Experiment

Expanding the Simple Experiment: Factorial Designs

Within-Subjects Designs

Single-N Experiments and Quasi-Experiments

Writing Research Proposals and Reports

Appendix E: Using Theory to Generate Research Hypotheses

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