Blake is selected for a study on music preference and happiness. He thinks the experimenter's hypothesis is that people who listen to classical music are happier. As a result, Blake reports listening to classical music more often than he realy does, as well as inflated scores on self-reported happiness. This is an example of: experimenter expectations o placebo effect o random assignment O participant demand Question 2 Among the examples below, the strongest correlation coefficient is: O +0.30 O +0.05 O +2.52 O -0.90 Question 3 A true experience has which of the following two characteristics? O random assignment and a manipulated dependent variable. O random selection and a manipulated dependent variable. o random selection and a manipulated independent variable. o random assignment and a manipulated independent variable Question 4 1 points s Students who study for 7 hours over the course of a week will perform better than students who cram for 7 hours the night before the exam. The independent variable in this hypothesis is: O students O exam performance O number of hours studied o method of studying (spaced or cramming)