Question 1

If productivity increased in a factory after all of its employees were switched to a work schedule consisting of four 10-hour days,should management really credit the schedule switch with the improvement?

Accepted Answer

A)   Yes
B)   Yes, but only if no workers had left the factory
C)   No. There are too many threats to validity to draw that conclusion
D)   No. You would need to conduct a survey to be sure. C

Question 2

Multiple-condition experiments are employed to

Accepted Answer

A)   compare more than one variable
B)   determine the shape of a function
C)   rule out more than one rival hypothesis
D)   All of these are true. D

Question 3

Reverse counterbalancing cannot control for ____ effects

Accepted Answer

A)   nonlinear
B)   order
C)   sequence
D)   within-subjects

Question 4

Reverse counterbalancing involves which one of the following procedures?

Accepted Answer

A)   randomly assigning subjects to treatment blocks
B)   presenting each condition once before any condition is repeated
C)   presenting the condition in order the first time and then in reverse order
D)   presenting the conditions in reverse order the first time and then in order the next time. C

Question 5

Block randomization involves which one of the following procedures?

Accepted Answer

A)   Randomly assigning subjects to treatment blocks
B)   Presenting the conditions in order the first time and then in reverse order
C)   Presenting subjects with each condition in a different order from other subjects
D)   Presenting each condition once before any condition is repeated

Question 6

The Latin-square design controls for

Accepted Answer

A)   order but not sequence
B)   sequence but not order
C)   both order and sequence
D)   neither order nor sequence

Question 7

The way in which subjects are treated in an experiment is referred to as the

Accepted Answer

A)   factor
B)   condition
C)   treatment
D)   both b and c

Question 8

A doctor prescribes a new drug for a sick patient.The patient gets well.Should the doctor believe that the drug made the patient well?

Accepted Answer

A)   Yes. This is a single-factor experiment.
B)   No. This represents a single-factor experiment
C)   No. There are too many threats to reliability to draw that conclusion
D)   No. There are too many threats to validity to draw that conclusion

Question 9

Exhibit 11-2 Refer to the following key:
R = random Assignment
X = experimental treatment
O = pretest or posttest observation
Refer to Exhibit 11-2.O X O represents the

Accepted Answer

A)   pretest-posttest control group design
B)   one-shot case study
C)   posttest-only control group design
D)   one-group pretest-posttest design

Question 10

Exhibit 11-1 A drug and a placebo are compared for treating diabetes.A random half of the subjects receive the drug,while the other half receives the placebo.Blood glucose level is tested in all of the subjects several times a day.
Refer to Exhibit 11-1.What type of design does this study represent?

Accepted Answer

A)   Single-factor within-subjects
B)   Single-factor between subjects
C)   One-group pretest-posttest
D)   Posttest-only design with nonequivalent control groups

Question 11

The experiment by Braun,Ellis,and Loftus (2002) on the effect of a Disney advertisement on memory for visiting a theme park was done between subjects because

Accepted Answer

A)   it would have taken too much time to run the same subjects in both conditions
B)   two condition experiments are always done between subjects
C)   if they experienced both conditions of the study they would no longer naive about the independent variable
D)   they were trying to rule out more than one alternative hypothesis

Question 12

A researcher plans a study to test the effectiveness of the discussion method in an introductory research methods course at the college level.One instructor will use the discussion method in her class several times during the semester.Another instructor will teach the same content,but without using the discussion method.The researcher will collect the following data: student scores on mid-term and final exams and on a scale measuring attitudes toward instruction.Discuss at least three recommendations that you can provide to improve this experimental design.

Accepted Answer

1. Random assignment of students to clas...

Question 13

Consider the posttest-only design with nonequivalent control groups.Can you think of an experimental situation in which this design might be necessary? How could you potentially strengthen the experimental design?

Accepted Answer

One potential experimental situation in ...

Question 14

Exhibit 11-2 Refer to the following key:
R = random Assignment
X = experimental treatment
O = pretest or posttest observation
Refer to Exhibit 11-2.O X O O represents the

Accepted Answer

A)   pretest-posttest control group design
B)   posttest-only control group design
C)   multiple conditions design
D)   nonequivalent control group design

Question 15

A well-designed experiment will

Accepted Answer

A)   rule out all possible threats to validity
B)   provide the result that corresponds to reality
C)   adequately control for threats to validity
D)   None of these are true

Question 16

A research procedure in which the scientist has complete control over all aspects of the study is called:

Accepted Answer

A)   A quasi-experiment
B)   A survey
C)   A true experiment
D)   An archival study

Question 17

Exhibit 11-1 A drug and a placebo are compared for treating diabetes.A random half of the subjects receive the drug,while the other half receives the placebo.Blood glucose level is tested in all of the subjects several times a day.
Refer to Exhibit 11-1.The independent variable in the experiment described is

Accepted Answer

A)   the drug
B)   the placebo
C)   blood glucose level
D)   not present

Question 18

Exhibit 11-2 Refer to the following key:
R = random Assignment
X = experimental treatment
O = pretest or posttest observation
Refer to Exhibit 11-2.X O represents the

Accepted Answer

A)   one-group pretest-posttest design
B)   one-shot case study
C)   posttest control group design
D)   one-group posttest only design

Question 19

You have a hypothesis that sugar decreases the ability to remember lists of words,and that this impairment increases with the amount of sugar that is administered.Design a between groups single factor true experiment to test this idea.Be sure to define your independent and dependent variables.How will you recruit subjects? How will you allocate subjects and conditions?

Accepted Answer

To test the hypothesis that sugar decrea...

Question 20

An experiment always has at least

Accepted Answer

A)   One independent variable
B)   Two independent variables
C)   Three levels
D)   Three conditions

Exam 11: True Experiments, part 1: Single-Factor Designs

If productivity increased in a factory after all of its employees were switched to a work schedule consisting of four 10-hour days,should management really credit the schedule switch with the improvement?

Correct Answer
verified
C

Multiple-condition experiments are employed to

Correct Answer
verified
D

Reverse counterbalancing cannot control for ____ effects

Correct Answer
verified

Reverse counterbalancing involves which one of the following procedures?

Correct Answer
verified
C

Block randomization involves which one of the following procedures?

Correct Answer
verified

The Latin-square design controls for

Correct Answer
verified

The way in which subjects are treated in an experiment is referred to as the

Correct Answer
verified

A doctor prescribes a new drug for a sick patient.The patient gets well.Should the doctor believe that the drug made the patient well?

Correct Answer
verified

Exhibit 11-2 Refer to the following key: R = random Assignment X = experimental treatment O = pretest or posttest observation Refer to Exhibit 11-2.O X O represents the

Correct Answer
verified

Exhibit 11-1 A drug and a placebo are compared for treating diabetes.A random half of the subjects receive the drug,while the other half receives the placebo.Blood glucose level is tested in all of the subjects several times a day. Refer to Exhibit 11-1.What type of design does this study represent?

Correct Answer
verified

The experiment by Braun,Ellis,and Loftus (2002) on the effect of a Disney advertisement on memory for visiting a theme park was done between subjects because

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
1. Random assignment of students to clas...
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Consider the posttest-only design with nonequivalent control groups.Can you think of an experimental situation in which this design might be necessary? How could you potentially strengthen the experimental design?

Correct Answer
Answered by ExamLex AI
One potential experimental situation in ...
View Answer

Exhibit 11-2 Refer to the following key: R = random Assignment X = experimental treatment O = pretest or posttest observation Refer to Exhibit 11-2.O X O O represents the

Correct Answer
verified

A well-designed experiment will

Correct Answer
verified

A research procedure in which the scientist has complete control over all aspects of the study is called:

Correct Answer
verified

Correct Answer
verified

Exhibit 11-2 Refer to the following key: R = random Assignment X = experimental treatment O = pretest or posttest observation Refer to Exhibit 11-2.X O represents the

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
To test the hypothesis that sugar decrea...
View Answer

An experiment always has at least

Correct Answer
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Exam 11: True Experiments, part 1: Single-Factor Designs

If productivity increased in a factory after all of its employees were switched to a work schedule consisting of four 10-hour days,should management really credit the schedule switch with the improvement?

Correct AnswerverifiedC

Multiple-condition experiments are employed to

Correct AnswerverifiedD

Reverse counterbalancing cannot control for ____ effects

Correct AnswerverifiedShow Answer

Reverse counterbalancing involves which one of the following procedures?

Correct AnswerverifiedC

Block randomization involves which one of the following procedures?

Correct AnswerverifiedShow Answer

The Latin-square design controls for

Correct AnswerverifiedShow Answer

The way in which subjects are treated in an experiment is referred to as the

Correct AnswerverifiedShow Answer

A doctor prescribes a new drug for a sick patient.The patient gets well.Should the doctor believe that the drug made the patient well?

Correct AnswerverifiedShow Answer

Exhibit 11-2 Refer to the following key: R = random Assignment X = experimental treatment O = pretest or posttest observation Refer to Exhibit 11-2.O X O represents the

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The experiment by Braun,Ellis,and Loftus (2002) on the effect of a Disney advertisement on memory for visiting a theme park was done between subjects because

Correct AnswerverifiedShow Answer

Correct AnswerAnswered by ExamLex AI1. Random assignment of students to clas...View AnswerShow Answer

Consider the posttest-only design with nonequivalent control groups.Can you think of an experimental situation in which this design might be necessary? How could you potentially strengthen the experimental design?

Correct AnswerAnswered by ExamLex AIOne potential experimental situation in ...View AnswerShow Answer

Exhibit 11-2 Refer to the following key: R = random Assignment X = experimental treatment O = pretest or posttest observation Refer to Exhibit 11-2.O X O O represents the

Correct AnswerverifiedShow Answer

A well-designed experiment will

Correct AnswerverifiedShow Answer

A research procedure in which the scientist has complete control over all aspects of the study is called:

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Exhibit 11-2 Refer to the following key: R = random Assignment X = experimental treatment O = pretest or posttest observation Refer to Exhibit 11-2.X O represents the

Correct AnswerverifiedShow Answer

Correct AnswerAnswered by ExamLex AITo test the hypothesis that sugar decrea...View AnswerShow Answer

An experiment always has at least

Correct AnswerverifiedShow Answer

Correct Answer
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C

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D

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C

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
Answered by ExamLex AI
1. Random assignment of students to clas...
View Answer

Correct Answer
Answered by ExamLex AI
One potential experimental situation in ...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
To test the hypothesis that sugar decrea...
View Answer

Correct Answer
verified