Expand Question Completion Status: Save All Answers Save and Submit QUESTION 1 The t-test for independent samples assumes which of the following? Scores are from pre and post tests for one group. Scores are from two unrelated groups. Scores are from three or more groups. Scores are from two groups with the same sample size. 0.5 points Save Answer QUESTION 2 What does effect size measure? The magnitude of the difference between two or more groups. The significance of the difference between two groups. The strength to detect whether or not the two groups are related. The strength to accurately reflect the population form. 0.5 points Save Answer QUESTION 3 In linear regression, the independent variable is also called what? Criterion Dependent Predictor Outcome 0.5 points Save Answer QUESTION 4 When your research questions calls for you to examine the differences in the mean scores among three or more groups, which of the following would be the appropriate test? Pearson correlation Dependent Samples t-test Multivariate Correlation Analysis of Variance 0.5 points Save Answer QUESTION 5 What is the term used to describe a measure of how different two groups are from one another? This is also known as a measure of the magnitude of treatment. statistical significance effect size standard error alpha level 0.5 points Save Answer QUESTION 6 A one-sample chi-square is also known as ________. Goodness of Fit Test Test of Independence Wilcoxon Rank Mann-Whitney 0.5 points Save Answer QUESTION 7 Which of the following parametric tests is used to compare the pre and post tests for one group? Dependent Samples t-Test Independent Sample t-Test ANOVA Chi-square 0.5 points Save Answer QUESTION 8 Which of the following is shows the strongest correlation (r-value) between two interval/ratio variables? .05 .45 -.67 2.0 0.5 points Save Answer QUESTION 9 Which of the following tests is used to examine the relationship between two nominal variables? T-test ANOVA Chi-Square Pearson Correlation 0.5 points Save Answer QUESTION 10 When can the ANOVA test be used? To compare the mean differences among three or more groups. To assess the relationship between two continuous variables. To measure the association between two categorical variables. To compare the frequency distribution between two groups. 0.5 points Save Answer QUESTION 11 Which correlation coefficient (r-value) reflects the occurrence of a perfect association? 0.1 1.0 10.0 100.0 0.5 points Save Answer QUESTION 12 What statistical technique is used to explain the variance in the outcome variable based on the differences in the predictor variable? Analysis of Variance Dependent-Samples t-Test Linear Regression Chi-Square Test of Independence 0.5 points Save Answer QUESTION 13 What is another name for a regression line? Line of Best Fit Scatter Plot Line Line Graph Line of the Estimate 0.5 points Save Answer QUESTION 14 \"The less time you spend on studying, the lower the test score\" is an example of what type of correlation? Indirect Non-directional Positive Negative 0.5 points Save Answer QUESTION 15 What does the r-value indicate in Pearson correlation? Magnitude and Significance Direction and Level of Association Level of Association and Significance Magnitude and Probability 0.5 points Save Answer QUESTION 16 Which of the following relates to the rejection of the null hypothesis when it is actually true? Type I Error Type II Error Sampling Error Standard Error 0.5 points Save Answer QUESTION 17 If you want to examine one group of subjects under two different conditions, which statistical technique should you select? Regression Dependent Samples t-Test Analysis of Variance Independent Samples t-Test 0.5 points Save Answer QUESTION 18 In Cohen's d, what is considered a moderate effect size? .15 .25 .57 .85 0.5 points Save Answer QUESTION 19 The correlation coefficient is a measure of __________________________. Mean differences Causation Prediction Association 0.5 points Save Answer QUESTION 20 What does a p-value of .05 imply? There is a 5% chance that it is a statistically significant finding. There is a 95% chance that the null hypothesis can be rejected. There is 1 in 20 chance that the results stem from chance alone. There is a 19 in 20 chance that the results stem from chance alone. Expand Question Completion Status: Save All Answers Save and Submit QUESTION 1 The t-test for independent samples assumes which of the following? Scores are from pre and post tests for one group. Scores are from two unrelated groups. Scores are from three or more groups. Scores are from two groups with the same sample size. 0.5 points Save Answer QUESTION 2 What does effect size measure? The magnitude of the difference between two or more groups. The significance of the difference between two groups. The strength to detect whether or not the two groups are related. The strength to accurately reflect the population form. 0.5 points Save Answer QUESTION 3 In linear regression, the independent variable is also called what? Criterion Dependent Predictor Outcome 0.5 points Save Answer QUESTION 4 When your research questions calls for you to examine the differences in the mean scores among three or more groups, which of the following would be the appropriate test? Pearson correlation Dependent Samples t-test Multivariate Correlation Analysis of Variance 0.5 points Save Answer QUESTION 5 What is the term used to describe a measure of how different two groups are from one another? This is also known as a measure of the magnitude of treatment. statistical significance effect size standard error alpha level 0.5 points Save Answer QUESTION 6 A one-sample chi-square is also known as ________. Goodness of Fit Test Test of Independence Wilcoxon Rank Mann-Whitney 0.5 points Save Answer QUESTION 7 Which of the following parametric tests is used to compare the pre and post tests for one group? Dependent Samples t-Test Independent Sample t-Test ANOVA Chi-square 0.5 points Save Answer QUESTION 8 Which of the following is shows the strongest correlation (r-value) between two interval/ratio variables? .05 .45 -.67 2.0 0.5 points Save Answer QUESTION 9 Which of the following tests is used to examine the relationship between two nominal variables? T-test ANOVA Chi-Square Pearson Correlation 0.5 points Save Answer QUESTION 10 When can the ANOVA test be used? To compare the mean differences among three or more groups. To assess the relationship between two continuous variables. To measure the association between two categorical variables. To compare the frequency distribution between two groups. 0.5 points Save Answer QUESTION 11 Which correlation coefficient (r-value) reflects the occurrence of a perfect association? 0.1 1.0 10.0 100.0 0.5 points Save Answer QUESTION 12 What statistical technique is used to explain the variance in the outcome variable based on the differences in the predictor variable? Analysis of Variance Dependent-Samples t-Test Linear Regression Chi-Square Test of Independence 0.5 points Save Answer QUESTION 13 What is another name for a regression line? Line of Best Fit Scatter Plot Line Line Graph Line of the Estimate 0.5 points Save Answer QUESTION 14 \"The less time you spend on studying, the lower the test score\" is an example of what type of correlation? Indirect Non-directional Positive Negative 0.5 points Save Answer QUESTION 15 What does the r-value indicate in Pearson correlation? Magnitude and Significance Direction and Level of Association Level of Association and Significance Magnitude and Probability 0.5 points Save Answer QUESTION 16 Which of the following relates to the rejection of the null hypothesis when it is actually true? Type I Error Type II Error Sampling Error Standard Error 0.5 points Save Answer QUESTION 17 If you want to examine one group of subjects under two different conditions, which statistical technique should you select? Regression Dependent Samples t-Test Analysis of Variance Independent Samples t-Test 0.5 points Save Answer QUESTION 18 In Cohen's d, what is considered a moderate effect size? .15 .25 .57 .85 0.5 points Save Answer QUESTION 19 The correlation coefficient is a measure of __________________________. Mean differences Causation Prediction Association 0.5 points Save Answer QUESTION 20 What does a p-value of .05 imply? There is a 5% chance that it is a statistically significant finding. There is a 95% chance that the null hypothesis can be rejected. There is 1 in 20 chance that the results stem from chance alone. There is a 19 in 20 chance that the results stem from chance alone