Question 1

Define the following terms
-reactivity

Accepted Answer

The general threat to external

Question 2

The experimental design is divided into seven parts,which are the following: treatment variable,_____,pretest,post-test,experimental group,control group,and _____.

Accepted Answer

A)  research question; random assignment 
B)  dependent variable; random assignment 
C)  random assignment; sample 
D)  independent variable; random selection 
E)  hypothesis; random treatment 
A)  research question; random assignment 
B)  dependent variable; random assignment 
C)  random assignment; sample 
D)  independent variable; random selection 
E)  hypothesis; random treatment

Question 3

Identify and describe three practical issues that all experimenters should be aware of.

Accepted Answer

-Planning and pilot tests: During the pl

Question 4

Define the following terms
-treatment

Accepted Answer

The name for the int

Question 5

In experimental research,what does external validity refer to? Briefly describe two instances where external validity is a threat to the overall findings and conclusions of an experiment.

Accepted Answer

-External validity is the ability to gen

Question 6

While studying rates of language acquisition for new Canadians from different countries,Curtis Cunning's research assistants informed him that 7 of the 65 subjects had quit and walked out before the study was completed.What type of threat to internal validity does Curtis' experiment have?

Accepted Answer

A)  Selection bias 
B)  History effect 
C)  Experimental mortality 
D)  Maturation 
E)  Testing effect 
A)  Selection bias 
B)  History effect 
C)  Experimental mortality 
D)  Maturation 
E)  Testing effect

Question 7

An experimenter uses a "2 x 3" design.To what exactly do the numbers refer?

Accepted Answer

A)  A factorial design with two independent variables and three dependent variables 
B)  A time series design with two dependent variables and three observations 
C)  A Latin square design with three groups 
D)  A factorial design with two categories in one treatment and three in the other 
E)  A static group comparison design with six dependent variables 
A)  A factorial design with two independent variables and three dependent variables 
B)  A time series design with two dependent variables and three observations 
C)  A Latin square design with three groups 
D)  A factorial design with two categories in one treatment and three in the other 
E)  A static group comparison design with six dependent variables

Question 8

In experimental research,what does internal validity refer to? Provide and briefly describe three examples where internal validity is an issue.

Accepted Answer

Answer :
-Internal validity refers to th

Question 9

Define the following terms
-diffusion of treatment

Accepted Answer

A threat to internal validity that occur

Question 10

Define the following terms
-mortality effect

Accepted Answer

A threat to internal validity

Question 11

The Ontario provincial government banned smoking in public places and workplaces in 2004.Dr.Sandy Smokesless used public records to compare the incidence rates of lung cancers before and after 2004 to determine whether the smoking ban helped address the threat smoking poses to the health of Ontarians.What sort of experimental research is this?

Accepted Answer

A)  Factorial design 
B)  Natural experiment 
C)  Latin square design 
D)  Interrupted time series design 
E)  Field research 
A)  Factorial design 
B)  Natural experiment 
C)  Latin square design 
D)  Interrupted time series design 
E)  Field research

Question 12

What kinds of questions are appropriate for using an experimental logic? What kinds of limitations do researchers employing experimental methods face? What sorts of research topics are best suited for experiments?

Accepted Answer

-The logic of experiments is that experi

Question 13

Doris Denning wanted to study the relationship between high school students' grades and assessments of their teachers.After teaching her research assistants proper interviewing techniques,Doris provided them with fake transcripts and disciplinary histories,which depicted some students as exceptional and others as trouble-makers.In reality,the 'exceptional' students and 'trouble-makers' were labelled as such randomly.Once the assistants' interviews concluded,the data indicated 'exceptional' students held their teachers in much higher esteem than the 'trouble-makers.' What threat to internal validity does Doris' study most likely have?

Accepted Answer

A)  Testing effect 
B)  Selection bias 
C)  Diffusion of treatment 
D)  Experimenter expectancy 
E)  Hawthorne effect 
A)  Testing effect 
B)  Selection bias 
C)  Diffusion of treatment 
D)  Experimenter expectancy 
E)  Hawthorne effect

Question 14

Teachers Jack Black and Shannon Shack want to increase the percentage of high school freshmen who pass an algebra exam (dependent variable).They conduct experiments on five sets of classes (named A to E)in Toronto area schools.They randomly assign students and give a pretest in September followed by a post-test the following January.The treatment is teaching method.The experimental groups are taught with special in-class demonstrations and pictorial games quizzes on computers,but no homework assignments,textbooks,or tests.The control groups are taught in the traditional manner with a textbook,homework,formulas on the blackboard,and tests.
 $\begin{array} { l | c c } 
& { \text { \% Passing the Math Exam } } \
& \text { Pretest Score } & \text { Posttest Score } \
\hline \text { A } & & \
\text { Experimental Group } & 20 \% & 81 \% \
\text { Control Group } & 19 \% & 62 \% \
\text { B } & & \
\text { Experimental Group } & 33 \% & 87 \% \
\text { Control Group } & 15 \% & 56 \% \
\text { C } & & \
\text { Experimental Group } & 22 \% & 77 \% \
\text { Control Group } & 25 \% & 76 \% \
\text { D } & & \
\text { Experimental Group } & 66 \% & 69 \% \
\text { Control Group } & 67 \% & 98 \% \
\text { E } & & \
\text { Experimental Group 1 } & 21 \% & 79 \% \
\text { Control Group 1 } & 20 \% & 66 \% \
\text { Experimental Group 2 } & & 68 \% \
\text { Control Group 2 } & & 56 \%
\end{array}$
-Which set of classes suggests that the new method really helps students learn algebra better?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  E 
A)  A 
B)  B 
C)  C 
D)  D 
E)  E

Question 15

Identify the two groups in a simple experiment and specify which one receives the treatment.What determines what the independent and dependent variables are?

Accepted Answer

-The experimental group is the group tha

Question 16

Define the following terms
-history effects

Accepted Answer

A threat to internal validity

Question 17

Define the following terms
-field experiment

Accepted Answer

Experimental researc

Question 18

Professor Steve Slick used the classical experimental design to test ways to raise self-assurance in stressful situations.At what part of the experiment does Slick measure the level of his dependent variable after introducing the independent variable?

Accepted Answer

A)  Control group 
B)  Experimental group 
C)  Pretest 
D)  Post-test 
E)  Random assignment 
A)  Control group 
B)  Experimental group 
C)  Pretest 
D)  Post-test 
E)  Random assignment

Question 19

Which of the following is least suited to providing clear evidence about a causal relationship between two variables?

Accepted Answer

A)  Classical experimental design 
B)  Solomon four-group design 
C)  Post-test only control group design 
D)  One-shot case study 
E)  All of the above are equally effective. 
A)  Classical experimental design 
B)  Solomon four-group design 
C)  Post-test only control group design 
D)  One-shot case study 
E)  All of the above are equally effective.

Question 20

Define the following terms
-experimental design

Accepted Answer

Arranging the parts

Define the following terms -reactivity

The experimental design is divided into seven parts,which are the following: treatment variable,_,pretest,post-test,experimental group,control group,and _.

Identify and describe three practical issues that all experimenters should be aware of.

Define the following terms -treatment

In experimental research,what does external validity refer to? Briefly describe two instances where external validity is a threat to the overall findings and conclusions of an experiment.

While studying rates of language acquisition for new Canadians from different countries,Curtis Cunning's research assistants informed him that 7 of the 65 subjects had quit and walked out before the study was completed.What type of threat to internal validity does Curtis' experiment have?

An experimenter uses a "2 x 3" design.To what exactly do the numbers refer?

In experimental research,what does internal validity refer to? Provide and briefly describe three examples where internal validity is an issue.

Define the following terms -diffusion of treatment

Define the following terms -mortality effect

What kinds of questions are appropriate for using an experimental logic? What kinds of limitations do researchers employing experimental methods face? What sorts of research topics are best suited for experiments?

Identify the two groups in a simple experiment and specify which one receives the treatment.What determines what the independent and dependent variables are?

Define the following terms -history effects

Define the following terms -field experiment

Professor Steve Slick used the classical experimental design to test ways to raise self-assurance in stressful situations.At what part of the experiment does Slick measure the level of his dependent variable after introducing the independent variable?

Which of the following is least suited to providing clear evidence about a causal relationship between two variables?

Define the following terms -experimental design

Doing Social Research

Theory and Social Research

Ethics in Social Research

Reviewing the Scholarly Literature and Planning a Study

Designing a Study

Qualitative and Quantitative Measurement

Qualitative and Quantitative Sampling

Survey Research

Nonreactive Quantitative Research and Secondary Analysis

Analysis of Quantitative Data

Qualitative Interviewing

Field Research

Nonreactive Qualitative Research

Analysis of Qualitative Data

Combining Methods in Social Science Research

Filters

Exam 9: Experimental Research

Define the following terms -reactivity

The experimental design is divided into seven parts,which are the following: treatment variable,_____,pretest,post-test,experimental group,control group,and _____.

Identify and describe three practical issues that all experimenters should be aware of.

Define the following terms -treatment

In experimental research,what does external validity refer to? Briefly describe two instances where external validity is a threat to the overall findings and conclusions of an experiment.

While studying rates of language acquisition for new Canadians from different countries,Curtis Cunning's research assistants informed him that 7 of the 65 subjects had quit and walked out before the study was completed.What type of threat to internal validity does Curtis' experiment have?

An experimenter uses a "2 x 3" design.To what exactly do the numbers refer?

In experimental research,what does internal validity refer to? Provide and briefly describe three examples where internal validity is an issue.

Define the following terms -diffusion of treatment

Define the following terms -mortality effect

What kinds of questions are appropriate for using an experimental logic? What kinds of limitations do researchers employing experimental methods face? What sorts of research topics are best suited for experiments?

Identify the two groups in a simple experiment and specify which one receives the treatment.What determines what the independent and dependent variables are?

Define the following terms -history effects

Define the following terms -field experiment

Professor Steve Slick used the classical experimental design to test ways to raise self-assurance in stressful situations.At what part of the experiment does Slick measure the level of his dependent variable after introducing the independent variable?

Which of the following is least suited to providing clear evidence about a causal relationship between two variables?

Define the following terms -experimental design

Doing Social Research

Theory and Social Research

Ethics in Social Research

Reviewing the Scholarly Literature and Planning a Study

Designing a Study

Qualitative and Quantitative Measurement

Qualitative and Quantitative Sampling

Survey Research

Nonreactive Quantitative Research and Secondary Analysis

Analysis of Quantitative Data

Qualitative Interviewing

Field Research

Nonreactive Qualitative Research

Analysis of Qualitative Data

Combining Methods in Social Science Research

Filters

The experimental design is divided into seven parts,which are the following: treatment variable,_,pretest,post-test,experimental group,control group,and _.