Question 1

A main effect is

Accepted Answer

A) the effect of a single independent variable. 
B) the largest or most important effect in a study. 
C) an interaction. 
D) a predicted effect. 
A) the effect of a single independent variable. 
B) the largest or most important effect in a study. 
C) an interaction. 
D) a predicted effect. A

Question 2

Pretest sensitization occurs when

Accepted Answer

A) pretesting shows that the dependent variable is not sensitive enough to detect effects of the independent variable. 
B) participants refuse to participate after completing the pretest. 
C) pretesting reduces demand characteristics. 
D) the pretest changes how participants respond to the independent variable. 
A) pretesting shows that the dependent variable is not sensitive enough to detect effects of the independent variable. 
B) participants refuse to participate after completing the pretest. 
C) pretesting reduces demand characteristics. 
D) the pretest changes how participants respond to the independent variable. D

Question 3

A between-within factorial design

Accepted Answer

A) has two independent variables. 
B) has features of a randomized groups and repeated measures design. 
C) is an expericorr factorial design. 
D) is a cross-over design. 
A) has two independent variables. 
B) has features of a randomized groups and repeated measures design. 
C) is an expericorr factorial design. 
D) is a cross-over design. B

Question 4

What are two ways of splitting participants into groups on the basis of a participant variable? Why are these methods discouraged?

Accepted Answer

Two ways of splitting participants into

Question 5

Describe the basic types of factorial designs.

Accepted Answer

Factorial designs are a type of experime

Question 6

A 3 × 2 × 2 factorial design has ________ condition(s).

Accepted Answer

A) 1 
B) 3 
C) 7 
D) 12 
A) 1 
B) 3 
C) 7 
D) 12

Question 7

In a 3 × 4 factorial design, _____ main effect(s)can be examined.

Accepted Answer

A) 1 
B) 2 
C) 7 
D) 12 
A) 1 
B) 2 
C) 7 
D) 12

Question 8

When graphed, interactions appear as _________ lines.

Accepted Answer

A) nonparallel 
B) curved 
C) parallel 
D) perpendicular 
A) nonparallel 
B) curved 
C) parallel 
D) perpendicular

Question 9

To qualify as an experiment, a study must

Accepted Answer

A) measure observable behavior. 
B) have at least two conditions. 
C) use random assignment. 
D) have at least two independent variables. 
A) measure observable behavior. 
B) have at least two conditions. 
C) use random assignment. 
D) have at least two independent variables.

Question 10

In a repeated measures design,

Accepted Answer

A) the possibility of order effects is eliminated. 
B) participants are randomly assigned to conditions. 
C) all subjects participate in all conditions. 
D) fewer experimental conditions are used than in other designs. 
A) the possibility of order effects is eliminated. 
B) participants are randomly assigned to conditions. 
C) all subjects participate in all conditions. 
D) fewer experimental conditions are used than in other designs.

Question 11

What are some advantages and disadvantages of pretest-posttest designs compared to posttest only designs?

Accepted Answer

Pretest-posttest designs have several ad

Question 12

How many interactions are tested in a 2 × 2 × 2 design?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 8 
A) 2 
B) 3 
C) 4 
D) 8

Question 13

Distinguish between a main effect and an interaction.

Accepted Answer

A main effect refers to the overall impa

Question 14

What is an expericorr (or mixed)factorial design?

Accepted Answer

An expericorr (or mixed) factorial desig

Question 15

Tell how many independent variables with how many levels there are in each of the following factorial designs: (a)2 × 3, (b)2 × 4 × 4, (c)3 × 4 × 2.

Accepted Answer

In factorial design notation, the number

Question 16

Why are researchers reluctant to conduct a median-split procedure to assign participants to groups?

Accepted Answer

A) Valuable information is lost. 
B) The independent variable cannot be manipulated. 
C) Interactions cannot be tested. 
D) Error variance increases. 
A) Valuable information is lost. 
B) The independent variable cannot be manipulated. 
C) Interactions cannot be tested. 
D) Error variance increases.

Question 17

In a ________ design, participants are randomly assigned to one of two or more groups.

Accepted Answer

A) pretest-posttest 
B) repeated measures 
C) matched-participants 
D) randomized groups 
A) pretest-posttest 
B) repeated measures 
C) matched-participants 
D) randomized groups

Question 18

The simplest possible mixed factorial design

Accepted Answer

A) is a 2 × 2 design. 
B) has two conditions. 
C) has one independent variable. 
D) involves no random assignment. 
A) is a 2 × 2 design. 
B) has two conditions. 
C) has one independent variable. 
D) involves no random assignment.

Question 19

One drawback of measuring the dependent variable both before and after the independent variable is manipulated is

Accepted Answer

A) pretest sensitization. 
B) carryover effects. 
C) Type II error. 
D) null findings. 
A) pretest sensitization. 
B) carryover effects. 
C) Type II error. 
D) null findings.

Question 20

What is a between-within factorial design?

Accepted Answer

A between-within factorial design, also

A main effect is

Pretest sensitization occurs when

A between-within factorial design

What are two ways of splitting participants into groups on the basis of a participant variable? Why are these methods discouraged?

Describe the basic types of factorial designs.

A 3 × 2 × 2 factorial design has ________ condition(s).

In a 3 × 4 factorial design, _____ main effect(s)can be examined.

When graphed, interactions appear as _________ lines.

To qualify as an experiment, a study must

In a repeated measures design,

What are some advantages and disadvantages of pretest-posttest designs compared to posttest only designs?

How many interactions are tested in a 2 × 2 × 2 design?

Distinguish between a main effect and an interaction.

What is an expericorr (or mixed)factorial design?

Tell how many independent variables with how many levels there are in each of the following factorial designs: (a)2 × 3, (b)2 × 4 × 4, (c)3 × 4 × 2.

Why are researchers reluctant to conduct a median-split procedure to assign participants to groups?

In a ________ design, participants are randomly assigned to one of two or more groups.

The simplest possible mixed factorial design

One drawback of measuring the dependent variable both before and after the independent variable is manipulated is

What is a between-within factorial design?

Research in the Behavioral Sciences

Behavioral Variability and Research

The Measurement of Behavior

Approaches to Psychological Measurement

Selecting Research Participants

Descriptive Research

Correlational Research

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Basic Issues in Experimental Research

Analyzing Experimental Data: Basic Concepts

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Exam 10: Experimental Design

A main effect is

Pretest sensitization occurs when

A between-within factorial design

What are two ways of splitting participants into groups on the basis of a participant variable? Why are these methods discouraged?

Describe the basic types of factorial designs.

A 3 × 2 × 2 factorial design has ________ condition(s).

In a 3 × 4 factorial design, _____ main effect(s)can be examined.

When graphed, interactions appear as _________ lines.

To qualify as an experiment, a study must

In a repeated measures design,

What are some advantages and disadvantages of pretest-posttest designs compared to posttest only designs?

How many interactions are tested in a 2 × 2 × 2 design?

Distinguish between a main effect and an interaction.

What is an expericorr (or mixed)factorial design?

Tell how many independent variables with how many levels there are in each of the following factorial designs: (a)2 × 3, (b)2 × 4 × 4, (c)3 × 4 × 2.

Why are researchers reluctant to conduct a median-split procedure to assign participants to groups?

In a ________ design, participants are randomly assigned to one of two or more groups.

The simplest possible mixed factorial design

One drawback of measuring the dependent variable both before and after the independent variable is manipulated is

What is a between-within factorial design?

Research in the Behavioral Sciences

Behavioral Variability and Research

The Measurement of Behavior

Approaches to Psychological Measurement

Selecting Research Participants

Descriptive Research

Correlational Research

Advanced Correlational Strategies

Basic Issues in Experimental Research

Analyzing Experimental Data: Basic Concepts

Statistical Analysis

Quasi-Experimental Designs

Single-Case Research

Ethical Issues in Behavioral Research

Scientific Writing

Filters