Question 1

When using non-parametric tests, which measure of central tendency is preferred when summarizing a set of data?

Accepted Answer

A)  Median 
B)  Mean 
C)  Mode 
D)  None of the above are appropriate. 
A)  Median 
B)  Mean 
C)  Mode 
D)  None of the above are appropriate.

Question 2

Run an appropriate test between the pre-test and post-test data of the experimental group. What is the result of the test?

Accepted Answer

A)  Ws = 1.5, z = -4.514, p s = -4.514, z = 1.5, p s = 1.5, z = -4.514, p = .000 
D)  Ws = -4.514, z = 1.5, p = .000 
A)  Ws = 1.5, z = -4.514, p s = -4.514, z = 1.5, p s = 1.5, z = -4.514, p = .000 
D)  Ws = -4.514, z = 1.5, p = .000

Question 3

Which of the following descriptions best explains non-parametric tests?

Accepted Answer

A)  Assumption-free 
B)  More likely to protect against Type II error 
C)  Robust 
D)  Normally distributed 
A)  Assumption-free 
B)  More likely to protect against Type II error 
C)  Robust 
D)  Normally distributed

Question 4

Analyse the group data by using a Kolmogorov-Smirnov test. Which data sets are not normally distributed ?

Accepted Answer

A)  Control group pre-test score and experimental group post-test score 
B)  Control group post-test score and experimental group pre-test score 
C)  Control group pre-test score and experimental group pre-test score 
D)  Control group post test score and experimental group post-test score 
A)  Control group pre-test score and experimental group post-test score 
B)  Control group post-test score and experimental group pre-test score 
C)  Control group pre-test score and experimental group pre-test score 
D)  Control group post test score and experimental group post-test score

Question 5

Based on the results of the initial analysis, what would be the most appropriate test to run if you wanted to compare the pre-test results with the post-test results of each group (i.e. control group pre versus post test or experimental pre versus post-test)?

Accepted Answer

A)  Willcoxon test 
B)  Mann-Whitney test 
C)  Paired-samples t-test 
D)  Independent t-test 
A)  Willcoxon test 
B)  Mann-Whitney test 
C)  Paired-samples t-test 
D)  Independent t-test

Question 6

If we wanted to compare the pre-test results with the post-test results, what type of research design would we use?

Accepted Answer

A)  Independent-groups design 
B)  Repeated-measures design 
C)  Mixed model groups design 
D)  Between-groups design 
A)  Independent-groups design 
B)  Repeated-measures design 
C)  Mixed model groups design 
D)  Between-groups design

Question 7

Run an appropriate test between the pre-test and post-test data of the experimental group. What is the result of the test?

Accepted Answer

A)  Ws = 1.5, z = -4.514, p s = -4.514, z = 1.5, p s = 1.5, z = -4.514, p = .000 
D)  Ws = -4.514, z = 1.5, p = .000 
A)  Ws = 1.5, z = -4.514, p s = -4.514, z = 1.5, p s = 1.5, z = -4.514, p = .000 
D)  Ws = -4.514, z = 1.5, p = .000

Question 8

Which test can be considered the non-parametric equivalent to an independent t-test?

Accepted Answer

A)  Willcoxon test 
B)  Mann-Whitney test 
C)  Kruskal-Wallis test 
D)  Friedman's ANOVA 
A)  Willcoxon test 
B)  Mann-Whitney test 
C)  Kruskal-Wallis test 
D)  Friedman's ANOVA

Question 9

Which is the correct expression for the Kolmogorov-Smirnov test result for the control group pre-test score?

Accepted Answer

A)  D(30) = .181, p = .014 
B)  D(30) = .140, p = .140 
C)  D(30) = .122, p > .2 
D)  D(30) = .203, p = .003 
A)  D(30) = .181, p = .014 
B)  D(30) = .140, p = .140 
C)  D(30) = .122, p > .2 
D)  D(30) = .203, p = .003

Question 10

Examine the following Q-Q plot from the pre-test control group. What can be assumed from the graph?

Accepted Answer

A)  Data may not be normally distributed because the points deviate from the diagonal line. 
B)  Data are definitely not normally distributed because the points deviate from the diagonal line. 
C)  Data may be normally distributed because the points deviate from the diagonal line. 
D)  Data are definitely normally distributed because the points deviate from the diagonal line. 
A)  Data may not be normally distributed because the points deviate from the diagonal line. 
B)  Data are definitely not normally distributed because the points deviate from the diagonal line. 
C)  Data may be normally distributed because the points deviate from the diagonal line. 
D)  Data are definitely normally distributed because the points deviate from the diagonal line.

Question 11

Which of the following are non-parametric tests?

Accepted Answer

A)  Willcoxon test 
B)  Mann-Whitney test 
C)  Kruskal-Wallis test 
D)  All of the above 
A)  Willcoxon test 
B)  Mann-Whitney test 
C)  Kruskal-Wallis test 
D)  All of the above

Question 12

Based on the results of the initial analysis, what would be the most appropriate test to run if you wanted to compare the pre-test results with the post-test results of each group (i.e. control group pre versus post test or experimental pre versus post-test)?

Accepted Answer

A)  Willcoxon test 
B)  Mann-Whitney test 
C)  Paired-samples t-test 
D)  Independent t-test 
A)  Willcoxon test 
B)  Mann-Whitney test 
C)  Paired-samples t-test 
D)  Independent t-test

Question 13

Examine the following Q-Q plot from the pre-test control group. What can be assumed from the graph?

Accepted Answer

A)  Data may not be normally distributed because the points deviate from the diagonal line. 
B)  Data are definitely not normally distributed because the points deviate from the diagonal line. 
C)  Data may be normally distributed because the points deviate from the diagonal line. 
D)  Data are definitely normally distributed because the points deviate from the diagonal line. 
A)  Data may not be normally distributed because the points deviate from the diagonal line. 
B)  Data are definitely not normally distributed because the points deviate from the diagonal line. 
C)  Data may be normally distributed because the points deviate from the diagonal line. 
D)  Data are definitely normally distributed because the points deviate from the diagonal line.

Question 14

When using non-parametric tests, which measure of central tendency is preferred when summarizing a set of data?

Accepted Answer

A)  Median 
B)  Mean 
C)  Mode 
D)  None of the above are appropriate. 
A)  Median 
B)  Mean 
C)  Mode 
D)  None of the above are appropriate.

Question 15

If we wanted to compare the control group results with the experimental group results for the pre and post conditions, what type of research design would we use?

Accepted Answer

A)  Independent-groups design 
B)  Repeated-measures design 
C)  Mixed model groups design 
D)  Within-groups design 
A)  Independent-groups design 
B)  Repeated-measures design 
C)  Mixed model groups design 
D)  Within-groups design

Question 16

Suppose you were interested in the longer-term effects of the imagery interventions and so you decide to get the experimental group to measure their anxiety scores using the SCAT questionnaire again, but this time 12 weeks later. What type of test might you use if you were interested in examining the variance at 0, 6 and 12 weeks?

Accepted Answer

A)  Kruskal-Wallis test 
B)  Friedman's test 
C)  Sign test 
D)  McNemar's test 
A)  Kruskal-Wallis test 
B)  Friedman's test 
C)  Sign test 
D)  McNemar's test

Question 17

Run an appropriate test between the pre-test and post-test data of the control group. What is the result of the test?

Accepted Answer

A)  Ws = 163.5, z = 1.205, p = .228 
B)  Ws = 1.205, z = 163.5, p = .228 
C)  Ws = .228, z = 1.205, p = 163.5 
D)  Ws = 163.5, z = .228, p = 1.205 
A)  Ws = 163.5, z = 1.205, p = .228 
B)  Ws = 1.205, z = 163.5, p = .228 
C)  Ws = .228, z = 1.205, p = 163.5 
D)  Ws = 163.5, z = .228, p = 1.205

Question 18

Based on the answer to Q13, what should you do?

Accepted Answer

A)  Reject the null hypothesis. 
B)  Accept the null hypothesis. 
C)  Reject the research hypothesis. 
D)  None of the answers provided are acceptable. 
A)  Reject the null hypothesis. 
B)  Accept the null hypothesis. 
C)  Reject the research hypothesis. 
D)  None of the answers provided are acceptable.

Question 19

What were the effect sizes for the between group pre and post tests (see results from Q18)?

Accepted Answer

A)  r = .11 and r = .35 
B)  r = .15 and r = .42 
C)  r = .21 and r = .30 
D)  r = .25 and r = .30 
A)  r = .11 and r = .35 
B)  r = .15 and r = .42 
C)  r = .21 and r = .30 
D)  r = .25 and r = .30

Question 20

Suppose you wanted to see if there was a difference between the participants in the control group and the experimental group for the pre-test and the post-test data. What is the correct expression for the test results?

Accepted Answer

A)  U = 506, z = -0.830, p = .406 and U = 269.5, z = -2.682, p = .007 
B)  U = -0.830, z = 394, p = .406 and U = -2.682, z = 269.5, p = .007 
C)  U = 0.406, z = -0.830, p = 394 and U = 0.007, z = -2.682, p = 269.5 
D)  U = 394, z = 0.406, p = -.830 and U = 269.5, z = 0.007, p = -2.682 
A)  U = 506, z = -0.830, p = .406 and U = 269.5, z = -2.682, p = .007 
B)  U = -0.830, z = 394, p = .406 and U = -2.682, z = 269.5, p = .007 
C)  U = 0.406, z = -0.830, p = 394 and U = 0.007, z = -2.682, p = 269.5 
D)  U = 394, z = 0.406, p = -.830 and U = 269.5, z = 0.007, p = -2.682

When using non-parametric tests, which measure of central tendency is preferred when summarizing a set of data?

Run an appropriate test between the pre-test and post-test data of the experimental group. What is the result of the test?

Which of the following descriptions best explains non-parametric tests?

Analyse the group data by using a Kolmogorov-Smirnov test. Which data sets are not normally distributed ?

Based on the results of the initial analysis, what would be the most appropriate test to run if you wanted to compare the pre-test results with the post-test results of each group (i.e. control group pre versus post test or experimental pre versus post-test)?

If we wanted to compare the pre-test results with the post-test results, what type of research design would we use?

Run an appropriate test between the pre-test and post-test data of the experimental group. What is the result of the test?

Which test can be considered the non-parametric equivalent to an independent t-test?

Which is the correct expression for the Kolmogorov-Smirnov test result for the control group pre-test score?

Examine the following Q-Q plot from the pre-test control group. What can be assumed from the graph?

Which of the following are non-parametric tests?

Based on the results of the initial analysis, what would be the most appropriate test to run if you wanted to compare the pre-test results with the post-test results of each group (i.e. control group pre versus post test or experimental pre versus post-test)?

Examine the following Q-Q plot from the pre-test control group. What can be assumed from the graph?

When using non-parametric tests, which measure of central tendency is preferred when summarizing a set of data?

If we wanted to compare the control group results with the experimental group results for the pre and post conditions, what type of research design would we use?

Run an appropriate test between the pre-test and post-test data of the control group. What is the result of the test?

Based on the answer to Q13, what should you do?

What were the effect sizes for the between group pre and post tests (see results from Q18)?

Suppose you wanted to see if there was a difference between the participants in the control group and the experimental group for the pre-test and the post-test data. What is the correct expression for the test results?

Why Is My Evil Lecturer Forcing Me to Learn Statistics

The Spine of Statistics

The Phoenix of Statistics

The Ibm Spss Statistics Environment

Exploring Data With Graphs

The Beast of Bias

Correlation

Regression

Comparing Two Means

Moderation,mediation and More Regression

Glm 1: Comparing Several Independent Means

Glm 2: Comparing Means Adjusted for Other Predictors Analysis of Covariance

Glm 3: Factorial Designs

Glm 4: Repeated-Measures Designs

Glm 5: Mixed Designs

Multivariate Analysis of Variance Manova

Exploratory Factor Analysis

Categorical Outcomes: Chi-Square and Loglinear Analysis

Categorical Outcomes: Logistic Regression

Multilevel Linear Models

Filters

Exam 7: Non-Parametric Models

When using non-parametric tests, which measure of central tendency is preferred when summarizing a set of data?

Run an appropriate test between the pre-test and post-test data of the experimental group. What is the result of the test?

Which of the following descriptions best explains non-parametric tests?

Analyse the group data by using a Kolmogorov-Smirnov test. Which data sets are not normally distributed ?

Based on the results of the initial analysis, what would be the most appropriate test to run if you wanted to compare the pre-test results with the post-test results of each group (i.e. control group pre versus post test or experimental pre versus post-test)?

If we wanted to compare the pre-test results with the post-test results, what type of research design would we use?

Run an appropriate test between the pre-test and post-test data of the experimental group. What is the result of the test?

Which test can be considered the non-parametric equivalent to an independent t-test?

Which is the correct expression for the Kolmogorov-Smirnov test result for the control group pre-test score?

Examine the following Q-Q plot from the pre-test control group. What can be assumed from the graph?

Which of the following are non-parametric tests?

Based on the results of the initial analysis, what would be the most appropriate test to run if you wanted to compare the pre-test results with the post-test results of each group (i.e. control group pre versus post test or experimental pre versus post-test)?

Examine the following Q-Q plot from the pre-test control group. What can be assumed from the graph?

When using non-parametric tests, which measure of central tendency is preferred when summarizing a set of data?

If we wanted to compare the control group results with the experimental group results for the pre and post conditions, what type of research design would we use?

Run an appropriate test between the pre-test and post-test data of the control group. What is the result of the test?

Based on the answer to Q13, what should you do?

What were the effect sizes for the between group pre and post tests (see results from Q18)?

Suppose you wanted to see if there was a difference between the participants in the control group and the experimental group for the pre-test and the post-test data. What is the correct expression for the test results?

Why Is My Evil Lecturer Forcing Me to Learn Statistics

The Spine of Statistics

The Phoenix of Statistics

The Ibm Spss Statistics Environment

Exploring Data With Graphs

The Beast of Bias

Correlation

Regression

Comparing Two Means

Moderation,mediation and More Regression

Glm 1: Comparing Several Independent Means

Glm 2: Comparing Means Adjusted for Other Predictors Analysis of Covariance

Glm 3: Factorial Designs

Glm 4: Repeated-Measures Designs

Glm 5: Mixed Designs

Multivariate Analysis of Variance Manova

Exploratory Factor Analysis

Categorical Outcomes: Chi-Square and Loglinear Analysis

Categorical Outcomes: Logistic Regression

Multilevel Linear Models

Filters