Question: A researcher observes the behavior of a group of monkeys
A researcher observes the behavior of a group of monkeys in the jungle. He deter-mines each monkey’s relative position in the dominance hierarchy of the group (1being most dominant) and also notes each monkey’s relative weight (1 being the lightest). What is the relationship between dominance rankings and weight rankings in these data?
Answer to relevant QuestionsIn an experiment, (a) Which variable is assumed to be the causal variable? (b) Which variable is assumed to be caused? (c) Which variable does the researcher manipulate? (d) Which variable occurs first? (a) Define a positive linear relationship. (b) Define a negative linear relationship. (c) Define a curvilinear relationship. Poindexter finds r = -.80 when correlating number of hours studied and number of errors made on a statistics test. He also finds r = + .40 between speed of taking the test and number of errors on the test. He concludes that ...(a) How are experiments and correlational designs similar in their purpose? (b) What is the distinguishing characteristic between an experiment and a correlational study? (a) What two assumptions must you make about the data in order for the standard error of the estimate to be accurate, and what does each mean? (b) How does heteroscedasticity lead to an inaccurate description of the data?
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