Exam 16: Correlation Between Numerical Variables
Exam 1: Statistics and Samples36 Questions
Exam 2: Displaying Data55 Questions
Exam 3: Describing Data49 Questions
Exam 4: Estimating With Uncertainty47 Questions
Exam 5: Probability50 Questions
Exam 6: Hypothesis Testing40 Questions
Exam 7: Analyzing Proportions54 Questions
Exam 8: Fitting Probability Models to Frequency Data53 Questions
Exam 9: Contingency Analysis: Associations Between56 Questions
Exam 10: The Normal Distribution51 Questions
Exam 11: Inference for a Normal Population46 Questions
Exam 12: Comparing Two Means53 Questions
Exam 13: Handling Violations of Assumptions38 Questions
Exam 14: Designing Experiments56 Questions
Exam 15: Comparing Means of More Than Two Groups54 Questions
Exam 16: Correlation Between Numerical Variables49 Questions
Exam 17: Regression54 Questions
Exam 18: Multiple Explanatory Variables47 Questions
Exam 19: Computer-Intensive Methods25 Questions
Exam 20: Likelihood33 Questions
Exam 21: Meta-Analysis: Combining Information From38 Questions
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Consider the data set shown. The mean X value is 6 and the mean Y value is 5.
2 3 4 5 6 6 7 8 8 6 9 8
-What would the standard error of the Spearman's rank correlation coefficient be for this data set?
(Multiple Choice)
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Consider the data set shown. The mean X value is 6 and the mean Y value is 5.
2 8 5 5 6 1 8 4 9 7
-What would the correlation coefficient be for this data set?
(Multiple Choice)
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Consider the data set shown. The mean X value is 6 and the mean Y value is 5.
2 8 5 5 6 1 8 4 9 7
-What would the standard error of the Spearman's rank correlation coefficient be for this data set?
(Multiple Choice)
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Correlation coefficients for studies using different ranges of values can be compared as long as 50% of the range overlaps.
(True/False)
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Which of the following is not a factor that can adversely influence the accuracy of a correlation analysis?
(Multiple Choice)
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Measurement error will tend to decrease the absolute value of the correlation coefficient.
(True/False)
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When transforming variables in a correlation analysis, both the X and Y values must be transformed.
(True/False)
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Spearman's rank correlation measures the strength and direction of the linear association between the ranks of two variables.
(True/False)
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Attenuation is the term that describes how measurement error tends to move the correlation coefficient closer to zero than its true value.
(True/False)
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