Question 1

The __________ t-test is used to determine if the mean differences between pairs is significantly different from zero.

Accepted Answer

A) independent 
B) one-sample 
C) dependent 
D) congruent 
A) independent 
B) one-sample 
C) dependent 
D) congruent

Question 2

You want to know whether typed or handwritten papers are graded differently by professors.You hope to show that there is a difference in the way typed and handwritten papers are evaluated.After the study has concluded, you find that there is a difference between the typed and handwritten papers in the grades received p < .05).What decision should you make?

Accepted Answer

A) reject the null hypothesis 
B) fail to reject the null hypothesis 
C) accept the null hypothesis 
D) accept the research hypothesis 
A) reject the null hypothesis 
B) fail to reject the null hypothesis 
C) accept the null hypothesis 
D) accept the research hypothesis

Question 3

A Type II error occurs when a researcher fails to reject the null hypothesis even though the null hypothesis is true.

Accepted Answer

A) True 
 B)False

Question 4

In psychological research, you fail to reject the null hypothesis when __________.

Accepted Answer

A) The group means are equal. 
B) The group means are not different. 
C) The group means are different. 
D) Both A and B 
A) The group means are equal. 
B) The group means are not different. 
C) The group means are different. 
D) Both A and B

Question 5

Tom is an undergraduate psychology major.He is conducting his first experiment and wants to know when he should determine the alpha level.What would you recommend to Tom?

Accepted Answer

A) Tom, the alpha level should be determined by your teacher. 
B) Tom, the alpha level should be set prior to the experiment. 
C) Tom, the alpha level should be set after you have collected data and examined the means. 
D) Tom, the field of psychology determines the alpha level for all experiments. 
A) Tom, the alpha level should be determined by your teacher. 
B) Tom, the alpha level should be set prior to the experiment. 
C) Tom, the alpha level should be set after you have collected data and examined the means. 
D) Tom, the field of psychology determines the alpha level for all experiments.

Question 6

When you have one independent variable with 3 or more levels, you would use a n) ______ to analyze the results.

Accepted Answer

A) one sample t-test 
B) one-way ANOVA 
C) three-way ANOVA 
D) can't be determined 
A) one sample t-test 
B) one-way ANOVA 
C) three-way ANOVA 
D) can't be determined

Question 7

Which of the following is the alpha level accepted by most in psychological research as indicating significance?

Accepted Answer

A) .05 
B) .06 
C) .10 
D) .15 
A) .05 
B) .06 
C) .10 
D) .15

Question 8

Jessica's exam scores for General Psychology were as follows: 95, 85, 70, and 90.Calculate the mean for these scores.

Accepted Answer

A) 85 
B) 87.5 
C) 90 
D) 97.5 
A) 85 
B) 87.5 
C) 90 
D) 97.5

Question 9

Tamara has just finished collecting her data for her research methods final project.Her results indicate that there is not a statistically significant difference between the means of the groups.In this situation, Tamara should __________.

Accepted Answer

A) fail to reject the null hypothesis. 
B) reject the null hypothesis. 
C) Both A and B 
D) None of the above 
A) fail to reject the null hypothesis. 
B) reject the null hypothesis. 
C) Both A and B 
D) None of the above

Question 10

When you have three independent variables each with 2 or more levels, you would use a n) _______ to analyze the results.

Accepted Answer

A) one sample t-test 
B) one-way ANOVA 
C) three-way ANOVA 
D) can't be determined 
A) one sample t-test 
B) one-way ANOVA 
C) three-way ANOVA 
D) can't be determined

Question 11

Which of the following is a correct decision?

Accepted Answer

A) reject the null hypothesis when it is false 
B) reject the null hypothesis when it is true 
C) fail to reject the null hypothesis when it is false 
D) none of the above 
A) reject the null hypothesis when it is false 
B) reject the null hypothesis when it is true 
C) fail to reject the null hypothesis when it is false 
D) none of the above

Question 12

The __________ t-test is used to determine when a mean is significantly different from a constant.

Accepted Answer

A) independent 
B) one-sample 
C) paired-samples 
D) dependent 
A) independent 
B) one-sample 
C) paired-samples 
D) dependent

Question 13

In psychological research, you reject the null hypothesis when __________.

Accepted Answer

A) the group means are equal. 
B) the group means are close to equal. 
C) the group means are different. 
D) None of the above 
A) the group means are equal. 
B) the group means are close to equal. 
C) the group means are different. 
D) None of the above

Question 14

Jessica's exam scores for General Psychology were as follows: 95, 85, 70, and 90.Calculate the median for these scores.

Accepted Answer

A) 85 
B) 87.5 
C) 90 
D) 97.5 
A) 85 
B) 87.5 
C) 90 
D) 97.5

Question 15

There are ____ branches to statistics frequently used by psychologists.

Accepted Answer

A) two 
B) three 
C) four 
D) five 
A) two 
B) three 
C) four 
D) five

Question 16

Tamara has just finished collecting her data for her research methods final project.Her results indicate that there is a statistically significant difference between the means of the groups.In this situation, Tamara should __________.

Accepted Answer

A) fail to reject the null hypothesis. 
B) reject the null hypothesis. 
C) Both A and B 
D) None of the above 
A) fail to reject the null hypothesis. 
B) reject the null hypothesis. 
C) Both A and B 
D) None of the above

Question 17

Which of the following is an example of a t-test frequently used by psychologists?

Accepted Answer

A) independent 
B) one-sample 
C) paired-samples 
D) all of the above 
A) independent 
B) one-sample 
C) paired-samples 
D) all of the above

Question 18

A Bonferroni correction is used to limit the possibility of making a Type I error.

Accepted Answer

A) True 
 B)False

Question 19

Kathryn has completed a study and rejected the null hypothesis when the null hypothesis was in fact true.Kathryn has made a __________.

Accepted Answer

A) correct decision. 
B) a type I error. 
C) a type II error. 
D) a type III error. 
A) correct decision. 
B) a type I error. 
C) a type II error. 
D) a type III error.

Question 20

__________ are easily influenced by extreme scores.

Accepted Answer

A) Means 
B) Medians 
C) Modes 
D) Variances 
A) Means 
B) Medians 
C) Modes 
D) Variances

The __________ t-test is used to determine if the mean differences between pairs is significantly different from zero.

A Type II error occurs when a researcher fails to reject the null hypothesis even though the null hypothesis is true.

In psychological research, you fail to reject the null hypothesis when __________.

Tom is an undergraduate psychology major.He is conducting his first experiment and wants to know when he should determine the alpha level.What would you recommend to Tom?

When you have one independent variable with 3 or more levels, you would use a n) ______ to analyze the results.

Which of the following is the alpha level accepted by most in psychological research as indicating significance?

Jessica's exam scores for General Psychology were as follows: 95, 85, 70, and 90.Calculate the mean for these scores.

Tamara has just finished collecting her data for her research methods final project.Her results indicate that there is not a statistically significant difference between the means of the groups.In this situation, Tamara should __________.

When you have three independent variables each with 2 or more levels, you would use a n) _______ to analyze the results.

Which of the following is a correct decision?

The __________ t-test is used to determine when a mean is significantly different from a constant.

In psychological research, you reject the null hypothesis when __________.

Jessica's exam scores for General Psychology were as follows: 95, 85, 70, and 90.Calculate the median for these scores.

There are ____ branches to statistics frequently used by psychologists.

Tamara has just finished collecting her data for her research methods final project.Her results indicate that there is a statistically significant difference between the means of the groups.In this situation, Tamara should __________.

Which of the following is an example of a t-test frequently used by psychologists?

A Bonferroni correction is used to limit the possibility of making a Type I error.

Kathryn has completed a study and rejected the null hypothesis when the null hypothesis was in fact true.Kathryn has made a __________.

__________ are easily influenced by extreme scores.

Psychology As a Science

Goals and Methods of Psychology

Ethics

Nonexperimental Research Methods

Variables, Reliability, and Validity

Hypothesis Testing

Selection of Variables, Operational Definitions, and Measurements Issues

Selection and Assignment of Participants

Controls and Threats to Interval Validity

Between Subjects Designs

Within Subjects Designs

Factorial Designs

Singe Case Designs

Apa Style: Sixth Edition

Filters

Exam 14: Hypothesis Testing Revisited and Interpreting Results

The __________ t-test is used to determine if the mean differences between pairs is significantly different from zero.

A Type II error occurs when a researcher fails to reject the null hypothesis even though the null hypothesis is true.

In psychological research, you fail to reject the null hypothesis when __________.

Tom is an undergraduate psychology major.He is conducting his first experiment and wants to know when he should determine the alpha level.What would you recommend to Tom?

When you have one independent variable with 3 or more levels, you would use a n) ______ to analyze the results.

Which of the following is the alpha level accepted by most in psychological research as indicating significance?

Jessica's exam scores for General Psychology were as follows: 95, 85, 70, and 90.Calculate the mean for these scores.

Tamara has just finished collecting her data for her research methods final project.Her results indicate that there is not a statistically significant difference between the means of the groups.In this situation, Tamara should __________.

When you have three independent variables each with 2 or more levels, you would use a n) _______ to analyze the results.

Which of the following is a correct decision?

The __________ t-test is used to determine when a mean is significantly different from a constant.

In psychological research, you reject the null hypothesis when __________.

Jessica's exam scores for General Psychology were as follows: 95, 85, 70, and 90.Calculate the median for these scores.

There are ____ branches to statistics frequently used by psychologists.

Tamara has just finished collecting her data for her research methods final project.Her results indicate that there is a statistically significant difference between the means of the groups.In this situation, Tamara should __________.

Which of the following is an example of a t-test frequently used by psychologists?

A Bonferroni correction is used to limit the possibility of making a Type I error.

Kathryn has completed a study and rejected the null hypothesis when the null hypothesis was in fact true.Kathryn has made a __________.

__________ are easily influenced by extreme scores.

Psychology As a Science

Goals and Methods of Psychology

Ethics

Nonexperimental Research Methods

Variables, Reliability, and Validity

Hypothesis Testing

Selection of Variables, Operational Definitions, and Measurements Issues

Selection and Assignment of Participants

Controls and Threats to Interval Validity

Between Subjects Designs

Within Subjects Designs

Factorial Designs

Singe Case Designs

Apa Style: Sixth Edition

Filters