Question 1

Original pairs of scores are first reduced to difference scores before computing the test statistic for the related samples t test.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following is an assumption for computing the related samples t test?

Accepted Answer

A) The population being sampled from is normally distributed. 
B) The population variance of difference scores is unknown. 
C) Samples are related or matched between groups,but not within groups. 
D) all of the above 
A) The population being sampled from is normally distributed. 
B) The population variance of difference scores is unknown. 
C) Samples are related or matched between groups,but not within groups. 
D) all of the above

Question 3

The estimate for standard error is placed in the numerator of the test statistic for a related samples t test.

Accepted Answer

A) True 
 B)False

Question 4

As the value of the test statistic for a related samples t test increases,the likelihood of deciding to retain the null hypothesis also increases.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following is the denominator of the test statistic for the related samples t test?

Accepted Answer

A) standard error 
B) estimated standard error 
C) estimated standard error for the difference 
D) estimated standard error for difference scores 
A) standard error 
B) estimated standard error 
C) estimated standard error for the difference 
D) estimated standard error for difference scores

Question 6

Using the same data,a related samples t test is more likely than a two-independent sample t test to result in a decision to reject the null hypothesis.

Accepted Answer

A) True 
 B)False

Question 7

Two researchers analyze the same data set.Researcher A uses a two-independent sample t test and decides to retain the null hypothesis.Researcher B uses a related samples t test and decides to reject the null hypothesis.Which of the following is a likely explanation for the disparity in the decisions made.

Accepted Answer

A) The two-independent sample t test had greater power to detect the effect. 
B) The two-independent sample t test was associated with fewer degrees of freedom. 
C) The related samples t test had greater power to detect the effect. 
D) The related samples t test was associated with more degrees of freedom. 
A) The two-independent sample t test had greater power to detect the effect. 
B) The two-independent sample t test was associated with fewer degrees of freedom. 
C) The related samples t test had greater power to detect the effect. 
D) The related samples t test was associated with more degrees of freedom.

Question 8

A researcher records the time it takes (in seconds)for participants to respond (by pressing a key)to a familiar versus an unfamiliar word flashed onto a computer screen.In this study,the difference in response time for each participant is compared.The type of design described here is called a

Accepted Answer

A) repeated measures design 
B) matched samples design 
C) both A and B 
A) repeated measures design 
B) matched samples design 
C) both A and B

Question 9

Participants can be matched through experimental manipulation or through natural occurrences to use the matched-pairs design.

Accepted Answer

A) True 
 B)False

Question 10

The type of t test that was used is typically reported in a data analysis section that precedes the results section in an APA-style paper.

Accepted Answer

A) True 
 B)False

Question 11

Selecting related samples can be more practical in that selecting related samples may provide a better way to test your hypotheses.

Accepted Answer

A) True 
 B)False

Question 12

All other things being equal,as the sample size increases,what happens to the critical value for a related samples t test (or for any t test,for that matter)?

Accepted Answer

A) The critical value increases. 
B) The critical value decreases. 
C) The critical value does not change. 
D) It depends on the value of the test statistic. 
A) The critical value increases. 
B) The critical value decreases. 
C) The critical value does not change. 
D) It depends on the value of the test statistic.

Question 13

Which of the following is an advantage for selecting related samples compared to selecting independent samples in behavioral research?

Accepted Answer

A) Selecting related samples can be more practical. 
B) Selecting related samples minimizes standard error. 
C) Selecting related samples increases power. 
D) All of the above. 
A) Selecting related samples can be more practical. 
B) Selecting related samples minimizes standard error. 
C) Selecting related samples increases power. 
D) All of the above.

Question 14

A researcher compares the difference in the amount of texting by students in class during the first week and last week of classes.The type of design described here is called a

Accepted Answer

A) repeated measures design 
B) matched samples design 
C) both A and B 
A) repeated measures design 
B) matched samples design 
C) both A and B

Question 15

An example of matching by experimental manipulation would be if we matched participants based on their gender (male,female).

Accepted Answer

A) True 
 B)False

Question 16

The degrees of freedom for the related samples t test is the number of pairs of participants minus one,and not always the total number of participants minus one.

Accepted Answer

A) True 
 B)False

Question 17

One difference between a repeated measures design and a matched samples design is that

Accepted Answer

A) only one design is a type of related sample design 
B) only one design increases the power to observe an effect 
C) only one design involves observing the same participants in each group 
D) only one design eliminates between-persons variability 
A) only one design is a type of related sample design 
B) only one design increases the power to observe an effect 
C) only one design involves observing the same participants in each group 
D) only one design eliminates between-persons variability

Question 18

All other things being equal,increasing the sample size will ________ the value of the test statistic for a related samples t test.

Accepted Answer

A) increase 
B) decrease 
C) have no effect on 
A) increase 
B) decrease 
C) have no effect on

Question 19

To summarize a related samples t test,we report the test statistic,critical values,and p value.

Accepted Answer

A) True 
 B)False

Question 20

A researcher computes d = .26.Hence,it is appropriate to conclude that 26% of the variability in the dependent variable can be accounted for by the presence of the independent variable.

Accepted Answer

A) True 
 B)False

Original pairs of scores are first reduced to difference scores before computing the test statistic for the related samples t test.

Which of the following is an assumption for computing the related samples t test?

The estimate for standard error is placed in the numerator of the test statistic for a related samples t test.

As the value of the test statistic for a related samples t test increases,the likelihood of deciding to retain the null hypothesis also increases.

Which of the following is the denominator of the test statistic for the related samples t test?

Using the same data,a related samples t test is more likely than a two-independent sample t test to result in a decision to reject the null hypothesis.

A researcher records the time it takes (in seconds)for participants to respond (by pressing a key)to a familiar versus an unfamiliar word flashed onto a computer screen.In this study,the difference in response time for each participant is compared.The type of design described here is called a

Participants can be matched through experimental manipulation or through natural occurrences to use the matched-pairs design.

The type of t test that was used is typically reported in a data analysis section that precedes the results section in an APA-style paper.

Selecting related samples can be more practical in that selecting related samples may provide a better way to test your hypotheses.

All other things being equal,as the sample size increases,what happens to the critical value for a related samples t test (or for any t test,for that matter)?

Which of the following is an advantage for selecting related samples compared to selecting independent samples in behavioral research?

A researcher compares the difference in the amount of texting by students in class during the first week and last week of classes.The type of design described here is called a

An example of matching by experimental manipulation would be if we matched participants based on their gender (male,female).

The degrees of freedom for the related samples t test is the number of pairs of participants minus one,and not always the total number of participants minus one.

One difference between a repeated measures design and a matched samples design is that

All other things being equal,increasing the sample size will ________ the value of the test statistic for a related samples t test.

To summarize a related samples t test,we report the test statistic,critical values,and p value.

A researcher computes d = .26.Hence,it is appropriate to conclude that 26% of the variability in the dependent variable can be accounted for by the presence of the independent variable.

Introduction to Statistics

Summarizing Data: Frequency Distributions in Tables and Graphs

Summarizing Data: Central Tendency

Summarizing Data: Variability

Probability

Probability, Normal Distributions, and Z Scores

Probability and Sampling Distributions

Hypothesis Testing: Significance, Effect Size, and Power

Testing Means: One-Sample and Two-Independent Sample T Tests

Estimation and Confidence Intervals

Analysis of Variance: One-Way Between-Subjects Design

Analysis of Variance: One-Way Within-Subjects Repeated Measures Design

Analysis of Variance: Two-Way Between-Subjects Factorial Design

Correlation

Linear Regression and Multiple Regression

Nonparametric Tests: Chi-Square Tests

Nonparametric Tests: Tests for Ordinal Data

Filters

Exam 10: Testing Means: Related Samples T Test

Original pairs of scores are first reduced to difference scores before computing the test statistic for the related samples t test.

Which of the following is an assumption for computing the related samples t test?

The estimate for standard error is placed in the numerator of the test statistic for a related samples t test.

As the value of the test statistic for a related samples t test increases,the likelihood of deciding to retain the null hypothesis also increases.

Which of the following is the denominator of the test statistic for the related samples t test?

Using the same data,a related samples t test is more likely than a two-independent sample t test to result in a decision to reject the null hypothesis.

A researcher records the time it takes (in seconds)for participants to respond (by pressing a key)to a familiar versus an unfamiliar word flashed onto a computer screen.In this study,the difference in response time for each participant is compared.The type of design described here is called a

Participants can be matched through experimental manipulation or through natural occurrences to use the matched-pairs design.

The type of t test that was used is typically reported in a data analysis section that precedes the results section in an APA-style paper.

Selecting related samples can be more practical in that selecting related samples may provide a better way to test your hypotheses.

All other things being equal,as the sample size increases,what happens to the critical value for a related samples t test (or for any t test,for that matter)?

Which of the following is an advantage for selecting related samples compared to selecting independent samples in behavioral research?

A researcher compares the difference in the amount of texting by students in class during the first week and last week of classes.The type of design described here is called a

An example of matching by experimental manipulation would be if we matched participants based on their gender (male,female).

The degrees of freedom for the related samples t test is the number of pairs of participants minus one,and not always the total number of participants minus one.

One difference between a repeated measures design and a matched samples design is that

All other things being equal,increasing the sample size will ________ the value of the test statistic for a related samples t test.

To summarize a related samples t test,we report the test statistic,critical values,and p value.

A researcher computes d = .26.Hence,it is appropriate to conclude that 26% of the variability in the dependent variable can be accounted for by the presence of the independent variable.

Introduction to Statistics

Summarizing Data: Frequency Distributions in Tables and Graphs

Summarizing Data: Central Tendency

Summarizing Data: Variability

Probability

Probability, Normal Distributions, and Z Scores

Probability and Sampling Distributions

Hypothesis Testing: Significance, Effect Size, and Power

Testing Means: One-Sample and Two-Independent Sample T Tests

Estimation and Confidence Intervals

Analysis of Variance: One-Way Between-Subjects Design

Analysis of Variance: One-Way Within-Subjects Repeated Measures Design

Analysis of Variance: Two-Way Between-Subjects Factorial Design

Correlation

Linear Regression and Multiple Regression

Nonparametric Tests: Chi-Square Tests

Nonparametric Tests: Tests for Ordinal Data

Filters