Parents can expect a more harmonious relationship with their teenage daughters during the daughters' _____.

Rofessor Todd decides to test her hypothesis that eating chocolate prior to exams increases students' test scores

PShe randomly assigns students to two groups at the beginning of the semester. One group receives a bar of chocolate before each test, while the other group receives another type of candy. She compares their scores at the end of the year, and finds that the students who ate the chocolate scored an average of ten points higher on their exams. What is a fair conclusion that can be drawn from this experiment? A) Eating chocolate causes students' test scores to increase. B) Eating chocolate has no relationship to students' test scores. C) Eating chocolate may increase students' satisfaction with the class. D) Eating chocolate makes students happy.

According to the article Zipping Up the Genes about twins reared apart, which of the following was a

finding of this study about genes and personality? (a) MZA twins look alike but they are not alike in other ways (b) MZA twin personalities are not any more similar if they are reared together (c) MZA twins are more like their mother than they are like their father (d) MZA twins appearto be quite similar because there is so much error in the measurement of their personalities