Make sure you have correctly identified the variables before you attempt to write out the hypotheses. Scenario One - To better understand the relationship between hormones and reproductive behavior, 17 newborn female shrews were given either a dose of testosterone or a placebo during the first 5 days after they were born. When they reached adulthood, the amount of time it took for them to mount another female (a typical male shrew behavior) was measured. Null Hypothesis: Alternative (Research) Hypothesis: Scenario Two - An industrial/organizational psychologist for a large corporation wanted to know if one leadership style was more effective than another. She measured the leadership style (coaching, democratic, or commanding) of 55 supervisors, and then asked their subordinates to rate their supervisors in terms of effectiveness. Subordinate ratings were averaged to form one composite rating for each supervisor. Null Hypothesis: Alternative (Research) Hypothesis