3. Looks at the relationship between a predictor and outcome variable at low, mean and high levels of a moderator. c. 0.577 C. CBM a) Causation arises when there is correlation between two variables and can also arise when there is no correlation. Select one: Answer: c, because x and y are interchangeable, and r does not depend on them, Q9) a study of department chairperson ratings and student rating of the performance of high school stats teachers reports a correlation of r=1.15 between the two ratings. Participants rated their mood score out of 20 before and after listening to Reign in Blood by the thrash metal band Slayer. Words correct per minute Correlation vs Causation | Introduction to Statistics | JMP False, Which of the following is not used to measure internal consistency? Scores on one variable plotted against scores on a second variable. Select one: What is the standard error of the estimate? Thirty minutes of exercise per day can reduce your blood pressure. \end{array}\right] Between 0 and 100 hours.c. 0.423 Which correlation coefficient would you use to look at the correlation between gender and time spent on the phone talking to your mother? b.) Number of miles driven by Paul; The correlational fallacy refers to which of the following? A. SOLVED: A national consumer magazine reported the following Select one: Q5) what number represents a perfect positive correlation? Learn for free regarding mathematical, art, computer programming, economic, physics, chemical, biology, medicine, finance, history, and moreover. Equivalent Forms grouping. False, Norm-referenced testing includes items that always represent the content accurately for all school systems. True This is an example of error analysis. 5 & -3 & 10 \\ B) we say that there is a positive correlation between x and y if the x-values increase as the corresponding y-values increase. Other things being equal, compared to the paired-samples (or dependent) t-test, the independent t-test: That the variance of a difference between two independent variables is equal to the sum of their variances. False, Writing educational objectives for skills to be tested would be part of the criterion-referenced assessment process. What is this an example of? A t-test was calculated and there is no significant difference in productivity between the two groups t(278) = 3.64; n.s. 1. What type of analysis could we conduct to test this hypothesis? C. Linguistic performance Failure False, When a preschool test is needed to determine how students will perform in reading, it is important that the test have good predictive validity. B. A researcher conducts some research in which they identify a significant positive correlation (r = .42) between the number of children a person has and their life satisfaction.
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which of the following statements are true about correlation?