d bar chart QUESTION 18 When one is examining a study that has been conducted, which of the following should they ask themselves? O a Was correlation assumed from a causation study? b. Was the study conducted in a timely manner? c. What was the motivation of the researcher? d. Was there a control group, and did the control group receive a placebo? QUESTION 19 Which of the following is NOT a reason behind gathering statistical evidence statistical graphs and tables? O a. It supports the argument for causation between the independent and dependent variables. b. Gathering statistical evidence allows for appropriate comparisons. c. Gathering data is more organized and official as well as providing the researcher with standardized information. O d. Gathering data allows for the researcher to ensure that the relationship between the variables is univariate. QUESTION 20 A Pearson correlation was calculated and the obtained value is -1.23. By definition, this implies O a. there is a negative relationship between the two variables O b. he has made a mistake in his calculations O c. the distribution of scores for the variables are negatively skewed O d. he will not reject the null hypothesis QUESTION 21 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save A