A sample of difference scores has a mean of MD = 5 with a variance of s2 = 100.If effect size is measured using Cohen's d,what is the value of d?

A) d = 5/10 B) d = 5/100 C) d = 25/100 D) Cannot determine without knowing the sample size A) d = 5/10 B) d = 5/100 C) d = 25/100 D) Cannot determine without knowing the sample size

Exam 11: The T Test for Two Related Samples

If a set of n = 9 difference scores has a mean of M_D = 3.5 and a variance of s² = 36,then the sample will produce a repeated-measures t statistic of t = 3.5/2.

(True/False)

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Question 61

Which of the following possibilities is a serious concern with a repeated-measures study?

(Multiple Choice)

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Question 62

The null hypothesis for a repeated-measures test states,

(Multiple Choice)

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Question 63

If other factors are held constant,which of the following sets of data is most likely to produce a significant value for the repeated-measures t statistic?

(Multiple Choice)

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Question 64

A researcher obtains t = 2.25 for a repeated-measures study using a sample of n = 10 participants.Based on this t value,what is the correct decision for a two-tailed test?

(Multiple Choice)

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Question 65

For a repeated-measures study comparing two treatment conditions,a researcher obtains a sample of n = 9 difference scores with a mean of M_D = 4 and a variance of s² = 36.What is the value for the repeated-measures t statistic for these data?

(Multiple Choice)

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Question 66

A research study produces a t statistic with df = 14.For this study,which of the following designs would require a total of 30 participants?

(Multiple Choice)

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Question 67

A research report describing the results from a repeated-measures study states that the data show no significant difference between the two treatments,t(10)= 1.65,p > .05.Based on this report,how many individuals participated in the research study?

(Multiple Choice)

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Question 68

One concern for a repeated-measures study is that the participants in one treatment may have different characteristics than the participants in the other treatment.

(True/False)

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Question 69

For a repeated-measures study,if other factors are held constant,then an increase in the sample variance will decrease measures of effect size.

(True/False)

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Question 70

Compared to an independent-measures design,a repeated-measured study is more likely to find a significant effect because it reduces the contribution of variance due to ______.

(Multiple Choice)

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Question 71

A sample of difference scores has a mean of M_D = 5 with a variance of s² = 100.If effect size is measured using Cohen's d,what is the value of d?

(Multiple Choice)

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Question 72

A repeated-measures study and an independent-measures study both produced a t statistic with df = 10.How many individuals participated in each study?

(Multiple Choice)

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Question 73

For a repeated-measures study,if the null hypothesis is true,then what value should be obtained for the sample mean.

(Multiple Choice)

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Question 74

A repeated-measures study using a sample of n = 20 participants would produce a t statistic with df = ____.

(Multiple Choice)

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Question 75

For a repeated-measures study,as the sample mean difference increases,the likelihood of rejecting the null hypothesis also increases.

(True/False)

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Question 76

Showing 61 - 76 of 76

If a set of n = 9 difference scores has a mean of M_D = 3.5 and a variance of s² = 36,then the sample will produce a repeated-measures t statistic of t = 3.5/2.

Which of the following possibilities is a serious concern with a repeated-measures study?

The null hypothesis for a repeated-measures test states,

If other factors are held constant,which of the following sets of data is most likely to produce a significant value for the repeated-measures t statistic?

A researcher obtains t = 2.25 for a repeated-measures study using a sample of n = 10 participants.Based on this t value,what is the correct decision for a two-tailed test?

For a repeated-measures study comparing two treatment conditions,a researcher obtains a sample of n = 9 difference scores with a mean of M_D = 4 and a variance of s² = 36.What is the value for the repeated-measures t statistic for these data?

A research study produces a t statistic with df = 14.For this study,which of the following designs would require a total of 30 participants?

A research report describing the results from a repeated-measures study states that the data show no significant difference between the two treatments,t(10)= 1.65,p > .05.Based on this report,how many individuals participated in the research study?

One concern for a repeated-measures study is that the participants in one treatment may have different characteristics than the participants in the other treatment.

For a repeated-measures study,if other factors are held constant,then an increase in the sample variance will decrease measures of effect size.

Compared to an independent-measures design,a repeated-measured study is more likely to find a significant effect because it reduces the contribution of variance due to ______.

A sample of difference scores has a mean of M_D = 5 with a variance of s² = 100.If effect size is measured using Cohen's d,what is the value of d?

A repeated-measures study and an independent-measures study both produced a t statistic with df = 10.How many individuals participated in each study?

For a repeated-measures study,if the null hypothesis is true,then what value should be obtained for the sample mean.

A repeated-measures study using a sample of n = 20 participants would produce a t statistic with df = ____.

For a repeated-measures study,as the sample mean difference increases,the likelihood of rejecting the null hypothesis also increases.

Introduction to Statistics

Frequency Distributions

Measures of Central Tendency

Measures of Variability

Z-Scores

Probability

Probability and Samples:

Introduction to Hypothesis Testing

Introduction to the T Statistic

The T Test for Two Independent Samples

Introduction to Analysis of Variance

Repeated-Measures and Two-Factor Anova

Correlation and Regression

Chi-Square Tests

Filters

Exam 11: The T Test for Two Related Samples

If a set of n = 9 difference scores has a mean of MD = 3.5 and a variance of s2 = 36,then the sample will produce a repeated-measures t statistic of t = 3.5/2.

Which of the following possibilities is a serious concern with a repeated-measures study?

The null hypothesis for a repeated-measures test states,

If other factors are held constant,which of the following sets of data is most likely to produce a significant value for the repeated-measures t statistic?

A researcher obtains t = 2.25 for a repeated-measures study using a sample of n = 10 participants.Based on this t value,what is the correct decision for a two-tailed test?

For a repeated-measures study comparing two treatment conditions,a researcher obtains a sample of n = 9 difference scores with a mean of MD = 4 and a variance of s2 = 36.What is the value for the repeated-measures t statistic for these data?

A research study produces a t statistic with df = 14.For this study,which of the following designs would require a total of 30 participants?

A research report describing the results from a repeated-measures study states that the data show no significant difference between the two treatments,t(10)= 1.65,p > .05.Based on this report,how many individuals participated in the research study?

One concern for a repeated-measures study is that the participants in one treatment may have different characteristics than the participants in the other treatment.

For a repeated-measures study,if other factors are held constant,then an increase in the sample variance will decrease measures of effect size.

Compared to an independent-measures design,a repeated-measured study is more likely to find a significant effect because it reduces the contribution of variance due to ______.

A sample of difference scores has a mean of MD = 5 with a variance of s2 = 100.If effect size is measured using Cohen's d,what is the value of d?

A repeated-measures study and an independent-measures study both produced a t statistic with df = 10.How many individuals participated in each study?

For a repeated-measures study,if the null hypothesis is true,then what value should be obtained for the sample mean.

A repeated-measures study using a sample of n = 20 participants would produce a t statistic with df = ____.

For a repeated-measures study,as the sample mean difference increases,the likelihood of rejecting the null hypothesis also increases.

Introduction to Statistics

Frequency Distributions

Measures of Central Tendency

Measures of Variability

Z-Scores

Probability

Probability and Samples:

Introduction to Hypothesis Testing

Introduction to the T Statistic

The T Test for Two Independent Samples

Introduction to Analysis of Variance

Repeated-Measures and Two-Factor Anova

Correlation and Regression

Chi-Square Tests

Filters

If a set of n = 9 difference scores has a mean of M_D = 3.5 and a variance of s² = 36,then the sample will produce a repeated-measures t statistic of t = 3.5/2.

For a repeated-measures study comparing two treatment conditions,a researcher obtains a sample of n = 9 difference scores with a mean of M_D = 4 and a variance of s² = 36.What is the value for the repeated-measures t statistic for these data?

A sample of difference scores has a mean of M_D = 5 with a variance of s² = 100.If effect size is measured using Cohen's d,what is the value of d?