Grading Summary Date Taken: 5/9/2015 Time Spent: 17 min, 31 secs Points Received: 15 / 20 (75%) Question 1. Question: The variable "religion" is an example of what level of data? Nominal Ordinal Interval Ratio Question 2. Question: Correlation coefficient tests allow you to determine if a cause and effect relationship is present. True False Question 3. Question: When calculating a Pearson's fdsf3q43 correlation coefficient, it is necessary that both variables have approximately normal distributions. True False Question 4. Question: The variable "Group assignment" is an example of what level of measurement? Nominal Ordinal Interval Ratio Question 5. Question: In a study that examines the effect of a peer mentor on the emotional status of patients, what is the dependent variable? Peer mentoring Emotional status Patients There is no dependent variable Question 6. Question: Statistics that allow for inferences to be made about a population from the study of a sample are known as: Inferential Quantitative Qualitative Descriptive Question 7. Question: Information collected in a numerical form is called: Inferential Quantitative Qualitative Descriptive Question 8. Question: A variable with equal distances between score units which also has a true meaningful zero is: Ordinal Cardinal Ratio Nominal Question 9. Question: Data that are categorical but can be rank-ordered in a meaningful way are called: Nominal Interval Ordinal Ratio Question 10. Question: What percent of the children in the study are Hispanic? 19.0% 10.2% 26.7% 8.7% Question 11. Question: The measure of central tendency that is the point at which half the scores fall above and half the scores fall below is the: Mode Range Median Mean Question 12. Question: Which measure of central tendency is at the highest point on a graph? Mode Range Median Mean Question 13. Question: If the mean is to the left of the median, what is true? The distribution is platykurtic. The distribution is positively skewed. The distribution is normally distributed. The distribution is negatively skewed. Question 14. Question: Which measure of variability is used most often in conjunction with the mean? Variance Standard deviation Range Semi-quartile range Question 15. Question: Which quartile has the same value as the median? 25% 50% 75% 25%-50% Question 16. Question: The standard deviation is: The difference between the 3rd and 1st quartile. The squared deviations from the mean. The difference between the highest and lowest scores. The square root of the variance. Question 17. Question: What is the best description of the distribution below? Positively skewed Strongly negatively skewed Platykurtic Leptokurtic Question 18. Question: The variable "miles per hour" is an example of what level of data: Ratio Nominal Ordinal Interval Question 19. Question: The mean and the mode are always the same for a dataset of over 10 values. True False Question 20. Question: The third quartile is: the point below which one third of the scores lie. the point below which 75% of the scores lie. the point below which 33% of the scores lie. the point above which 75% of the scores lie. * Times are displayed in (GMT-07:00) Mountain Time (US & Canada)