A scientist is interested in conducting an experiment to see whether reading prenatally to children while still in the womb, improves their intelligence. Fifty pregnant individuals are randomly assigned to either a "reading to your belly" condition or a control condition in which no reading takes place. In the experimental condition, mothers read the book Cat in the Hat out loud every evening for 15 minutes, during the last three months of their pregnancy. Then, 6 months after the babies are born, they are administered the Fagan Test of Infant Intelligence. a. Identify the independent variable and the dependent variable in this scenario (2 points)? b. T/F This was not a true experiment (1 point). c. What is the sample size in each condition (1 point)? d. T/F The mean income of individuals assigned to the experimental group is assumed to be equivalent to the mean income of individuals assigned to the control group (1 point). Why or why not (2 points)