Question 1

In a table that summarizes the results of an analysis of variance, the word "Between"might be replaced by

Accepted Answer

A)  "Within" 
B)  "Error" 
C)  "Treatment" 
D)  "Total" 
A)  "Within" 
B)  "Error" 
C)  "Treatment" 
D)  "Total"

Question 2

You are most likely to get a significant F if the between-groups variability is small.

Accepted Answer

A) True 
 B)False

Question 3

Using multiple levels of a quantitative independent variable can

Accepted Answer

A)  increase your ability to accurately estimate the effects of unexplored levels of the independent variable 
B)  help alert you to problems caused by an empty control group 
C)  decrease confounding variables 
D)  all of the above 
A)  increase your ability to accurately estimate the effects of unexplored levels of the independent variable 
B)  help alert you to problems caused by an empty control group 
C)  decrease confounding variables 
D)  all of the above

Question 4

Suppose you are analyzing the results from a study. When you first see the variability between groups, you should probably view that variability as representing

Accepted Answer

A)  the treatment effect 
B)  random error 
C)  random error and possibly the treatment effect 
D)  random error and the treatment effect 
A)  the treatment effect 
B)  random error 
C)  random error and possibly the treatment effect 
D)  random error and the treatment effect

Question 5

In an experiment involving four different groups, each consisting of 5 participants, the total degrees of freedom equals

Accepted Answer

A)  16 
B)  18 
C)  19 
D)  20 
A)  16 
B)  18 
C)  19 
D)  20

Question 6

Which of the following conditions must you meet to do a post hoc trend analysis?

Accepted Answer

A)  obtain a statistically significant overall effect 
B)  have a quantitative independent variable 
C)  have a dependent measure that yields interval or ratio scale data 
D)  all of the above 
A)  obtain a statistically significant overall effect 
B)  have a quantitative independent variable 
C)  have a dependent measure that yields interval or ratio scale data 
D)  all of the above

Question 7

Scores within a treatment group differ from each other due to random error.

Accepted Answer

A) True 
 B)False

Question 8

What does the "F score"for the treatment main effect tell the researcher?

Accepted Answer

A)  If F is larger than 1 then the IV had an effect. 
B)  The F ratio indicates which group significantly differed from the other. 
C)  It tells her nothing until she can see if the F she calculated would occur by chance in like conditions less than 5% of the time by looking it up on an F table. 
D)  a and b 
A)  If F is larger than 1 then the IV had an effect. 
B)  The F ratio indicates which group significantly differed from the other. 
C)  It tells her nothing until she can see if the F she calculated would occur by chance in like conditions less than 5% of the time by looking it up on an F table. 
D)  a and b

Question 9

Simple experiments usually have more construct validity than multiple-group experiments.

Accepted Answer

A) True 
 B)False

Question 10

If we do not know the true functional relationship between the independent and dependent variable, then

Accepted Answer

A)  our results are not statistically significant 
B)  we cannot accurately generalize our results to unexplored levels of the independent variable 
C)  our study will lack construct validity 
D)  our study will lack internal validity 
A)  our results are not statistically significant 
B)  we cannot accurately generalize our results to unexplored levels of the independent variable 
C)  our study will lack construct validity 
D)  our study will lack internal validity

Question 11

The "critical F"found in a table labeled "Critical Values of F for the .05 Level of Significance"is

Accepted Answer

A)  the true answer to the problem 
B)  the F that would be obtained or exceeded 5% of the time by chance alone 
C)  the F score which is due to 95% chance 
D)  the point at which significance ceases 
A)  the true answer to the problem 
B)  the F that would be obtained or exceeded 5% of the time by chance alone 
C)  the F score which is due to 95% chance 
D)  the point at which significance ceases

Question 12

Using a t test rather than an F test with a five group experiment would

Accepted Answer

A)  increase your chances of making a Type 1 error 
B)  decrease your chances of making a Type 1 error 
C)  decrease your chances of making a Type 2 error 
D)  decrease your power significantly 
A)  increase your chances of making a Type 1 error 
B)  decrease your chances of making a Type 1 error 
C)  decrease your chances of making a Type 2 error 
D)  decrease your power significantly

Question 13

If only chance is operating to influence your data, then the theoretically expected F ratio would be

Accepted Answer

A)  around 0.00 
B)  around 1.00 
C)  negative 
D)  around 20.00 
A)  around 0.00 
B)  around 1.00 
C)  negative 
D)  around 20.00

Question 14

In order to use the multiple-group experiment to discover the functional relationship, your dependent measure must provide at least ratio scale data.

Accepted Answer

A) True 
 B)False

Question 15

If you are conducting an ANOVA and you have 7 degrees of freedom between groups, the number of groups in the study equals

Accepted Answer

A)  6 
B)  7 
C)  8 
D)  cannot be answered on the basis of information given 
A)  6 
B)  7 
C)  8 
D)  cannot be answered on the basis of information given

Question 16

The multiple-group experiment is more sensitive to nonlinear relationships than the simple experiment.

Accepted Answer

A) True 
 B)False

Question 17

Essentially, the F ratio reflects the ratio of the

Accepted Answer

A)  true null hypothesis to the false null hypothesis 
B)  treatment effect to the null hypothesis 
C)  observed sample mean differences to the null hypothesis 
D)  observed sample mean differences to the estimated error term 
A)  true null hypothesis to the false null hypothesis 
B)  treatment effect to the null hypothesis 
C)  observed sample mean differences to the null hypothesis 
D)  observed sample mean differences to the estimated error term

In a table that summarizes the results of an analysis of variance, the word "Between"might be replaced by

You are most likely to get a significant F if the between-groups variability is small.

Using multiple levels of a quantitative independent variable can

Suppose you are analyzing the results from a study. When you first see the variability between groups, you should probably view that variability as representing

In an experiment involving four different groups, each consisting of 5 participants, the total degrees of freedom equals

Which of the following conditions must you meet to do a post hoc trend analysis?

Scores within a treatment group differ from each other due to random error.

What does the "F score"for the treatment main effect tell the researcher?

Simple experiments usually have more construct validity than multiple-group experiments.

If we do not know the true functional relationship between the independent and dependent variable, then

The "critical F"found in a table labeled "Critical Values of F for the .05 Level of Significance"is

Using a t test rather than an F test with a five group experiment would

If only chance is operating to influence your data, then the theoretically expected F ratio would be

In order to use the multiple-group experiment to discover the functional relationship, your dependent measure must provide at least ratio scale data.

If you are conducting an ANOVA and you have 7 degrees of freedom between groups, the number of groups in the study equals

The multiple-group experiment is more sensitive to nonlinear relationships than the simple experiment.

Essentially, the F ratio reflects the ratio of the

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

In a table that summarizes the results of an analysis of variance, the word "Between"might be replaced by

You are most likely to get a significant F if the between-groups variability is small.

Using multiple levels of a quantitative independent variable can

Suppose you are analyzing the results from a study. When you first see the variability between groups, you should probably view that variability as representing

In an experiment involving four different groups, each consisting of 5 participants, the total degrees of freedom equals

Which of the following conditions must you meet to do a post hoc trend analysis?

Scores within a treatment group differ from each other due to random error.

What does the "F score"for the treatment main effect tell the researcher?

Simple experiments usually have more construct validity than multiple-group experiments.

If we do not know the true functional relationship between the independent and dependent variable, then

The "critical F"found in a table labeled "Critical Values of F for the .05 Level of Significance"is

Using a t test rather than an F test with a five group experiment would

If only chance is operating to influence your data, then the theoretically expected F ratio would be

In order to use the multiple-group experiment to discover the functional relationship, your dependent measure must provide at least ratio scale data.

If you are conducting an ANOVA and you have 7 degrees of freedom between groups, the number of groups in the study equals

The multiple-group experiment is more sensitive to nonlinear relationships than the simple experiment.

Essentially, the F ratio reflects the ratio of the

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

Filters