For the following data, what is the mean of the difference scores? \[\begin{array} { | r r } \hline { \text { Before } } & \text { After } \\ \hline 160 & 153 \\ \hline 125 & 124 \\ \hline 142 & 136 \\ \hline 187 & 167 \\ \hline \end{array}\]

A) 8.50 B) 5.00 C) 4.26 D) 11.33 A) 8.50 B) 5.00 C) 4.26 D) 11.33

Exam 10: The Paired-Samples T Test

The possible threat of participants having experience with the variables in a within-groups design when they experience those variables for the second time is known as:

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Question 1

Correct Answer:

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What is the mean of the difference scores for the following difference scores: 2, 6.5, 3, 7.8, 10, 4.2?

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Question 2

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A paired-samples t test is also known as a:

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Question 3

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The American Psychological Association encourages researchers to report _____ for paired-samples t tests.

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Question 4

What is the standard error for the paired-samples t test for the following difference scores: -1, -24, +20, -28, -4?

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Question 5

Assume the following for a paired-samples t test: N = 9, M_difference = 101.4, s = 450.2.What is the 90 percent confidence interval for a two-tailed test?

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Question 6

A researcher investigates whether the extent to which people care about keeping their house clean and neat changes if they are given new things in that home.He follows eight families that were selected to receive home makeovers, assessing their cleanliness before the makeover and after.Given the confidence interval [-1.26, 0.95], what decision about the hypothesis should be made?

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Question 7

What is the paired-samples t statistic when using M_difference = 8.0, s = 5.8, N = 15?

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Question 8

For the following data, what is the mean of the difference scores? Before After 160 153 125 124 142 136 187 167

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Question 9

The critical cutoff(s) for a one-tailed, paired-samples t test with 16 participants at a p level of 0.05 is (are):

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Question 10

When conducting a paired-samples t test, the sample mean difference is compared to:

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Question 11

According to the null hypothesis, the mean difference for the comparison distribution in a paired-samples t test is:

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Question 12

Counterbalancing minimizes order effects due to the presentation of different levels of the dependent variable.

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Question 13

The formula for the null hypothesis for a paired-samples t test is:

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Question 14

One expects children's vocabularies to increase over time, with, say, 200 new words per year established as the standard.The null hypothesis for a paired-samples t test that assesses 150 children at age 5 and again at age 6 would assume an average mean difference of zero words.

(True/False)

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Question 15

Psychology students took longer to complete a quiz when music was playing in the background than when there was no background noise: t(14) = -6.23, p < 0.05.What is the sample size in this study?

(Multiple Choice)

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Question 16

What would be the decision for the following paired-samples t test: t(24) = 4.11, p < 0.05?

(Multiple Choice)

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Question 17

A group of rats ran faster after receiving a steroid drug supplement than they did earlier without any drug supplement.What type of statistical test should be reported with these results?

(Multiple Choice)

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Question 18

What is the standard error of the difference scores for a paired-samples t test for the following difference scores: 2, 6.5, 3, 7.8, 10, 4.2?

(Multiple Choice)

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Question 19

In a paired-samples t test, the comparison distribution is a distribution of:

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Question 20

Showing 1 - 20 of 101

The possible threat of participants having experience with the variables in a within-groups design when they experience those variables for the second time is known as:

What is the mean of the difference scores for the following difference scores: 2, 6.5, 3, 7.8, 10, 4.2?

A paired-samples t test is also known as a:

The American Psychological Association encourages researchers to report _____ for paired-samples t tests.

What is the standard error for the paired-samples t test for the following difference scores: -1, -24, +20, -28, -4?

Assume the following for a paired-samples t test: N = 9, M_difference = 101.4, s = 450.2.What is the 90 percent confidence interval for a two-tailed test?

What is the paired-samples t statistic when using M_difference = 8.0, s = 5.8, N = 15?

For the following data, what is the mean of the difference scores? Before After 160 153 125 124 142 136 187 167

The critical cutoff(s) for a one-tailed, paired-samples t test with 16 participants at a p level of 0.05 is (are):

When conducting a paired-samples t test, the sample mean difference is compared to:

According to the null hypothesis, the mean difference for the comparison distribution in a paired-samples t test is:

Counterbalancing minimizes order effects due to the presentation of different levels of the dependent variable.

The formula for the null hypothesis for a paired-samples t test is:

One expects children's vocabularies to increase over time, with, say, 200 new words per year established as the standard.The null hypothesis for a paired-samples t test that assesses 150 children at age 5 and again at age 6 would assume an average mean difference of zero words.

Psychology students took longer to complete a quiz when music was playing in the background than when there was no background noise: t(14) = -6.23, p < 0.05.What is the sample size in this study?

What would be the decision for the following paired-samples t test: t(24) = 4.11, p < 0.05?

A group of rats ran faster after receiving a steroid drug supplement than they did earlier without any drug supplement.What type of statistical test should be reported with these results?

What is the standard error of the difference scores for a paired-samples t test for the following difference scores: 2, 6.5, 3, 7.8, 10, 4.2?

In a paired-samples t test, the comparison distribution is a distribution of:

An Introduction to Statistics and Research Design

Frequency Distributions

Visual Displays of Data

Central Tendency and Variability

Sampling and Probability

The Normal Curve, Standardization and Z Scores

Hypothesis Testing With Z Tests

Confidence Intervals, Effect Size, and Statistical Power

The Single-Sample T Test

The Independent-Samples T Test

One-Way Between-Groups Anova

One-Way Within-Groups Anova

Two-Way Between-Groups Anova

Correlation

Regression

Chi-Square Tess

Choosing and Reporting Statistics

Filters

Exam 10: The Paired-Samples T Test

The possible threat of participants having experience with the variables in a within-groups design when they experience those variables for the second time is known as:

What is the mean of the difference scores for the following difference scores: 2, 6.5, 3, 7.8, 10, 4.2?

A paired-samples t test is also known as a:

The American Psychological Association encourages researchers to report _____ for paired-samples t tests.

What is the standard error for the paired-samples t test for the following difference scores: -1, -24, +20, -28, -4?

Assume the following for a paired-samples t test: N = 9, Mdifference = 101.4, s = 450.2.What is the 90 percent confidence interval for a two-tailed test?

What is the paired-samples t statistic when using Mdifference = 8.0, s = 5.8, N = 15?

For the following data, what is the mean of the difference scores? Before After 160 153 125 124 142 136 187 167

The critical cutoff(s) for a one-tailed, paired-samples t test with 16 participants at a p level of 0.05 is (are):

When conducting a paired-samples t test, the sample mean difference is compared to:

According to the null hypothesis, the mean difference for the comparison distribution in a paired-samples t test is:

Counterbalancing minimizes order effects due to the presentation of different levels of the dependent variable.

The formula for the null hypothesis for a paired-samples t test is:

One expects children's vocabularies to increase over time, with, say, 200 new words per year established as the standard.The null hypothesis for a paired-samples t test that assesses 150 children at age 5 and again at age 6 would assume an average mean difference of zero words.

Psychology students took longer to complete a quiz when music was playing in the background than when there was no background noise: t(14) = -6.23, p < 0.05.What is the sample size in this study?

What would be the decision for the following paired-samples t test: t(24) = 4.11, p < 0.05?

A group of rats ran faster after receiving a steroid drug supplement than they did earlier without any drug supplement.What type of statistical test should be reported with these results?

What is the standard error of the difference scores for a paired-samples t test for the following difference scores: 2, 6.5, 3, 7.8, 10, 4.2?

In a paired-samples t test, the comparison distribution is a distribution of:

An Introduction to Statistics and Research Design

Frequency Distributions

Visual Displays of Data

Central Tendency and Variability

Sampling and Probability

The Normal Curve, Standardization and Z Scores

Hypothesis Testing With Z Tests

Confidence Intervals, Effect Size, and Statistical Power

The Single-Sample T Test

The Independent-Samples T Test

One-Way Between-Groups Anova

One-Way Within-Groups Anova

Two-Way Between-Groups Anova

Correlation

Regression

Chi-Square Tess

Choosing and Reporting Statistics

Filters

Assume the following for a paired-samples t test: N = 9, M_difference = 101.4, s = 450.2.What is the 90 percent confidence interval for a two-tailed test?

What is the paired-samples t statistic when using M_difference = 8.0, s = 5.8, N = 15?