RESEARCH STUDY 9.1: Dr. Fаrаh is аn educatiоnal psychоlоgist who is interested in studying the potential causal relationship between doing homework and academic achievement. In January, Dr. Farah has her students report their fall GPA (a measure of academic achievement) and estimate how many hours they spent doing homework during a typical week in the fall semester. In May, Dr. Farah measures the same variables again (the estimated number of hours spent doing homework during a typical week in the spring semester and their spring GPA). She finds the following correlations: Variable AVariable BCorrelation Coefficient Correlation 1Fall number of hours of homeworkFall semester GPA.83* Correlation 2Fall number of hours of homeworkSpring number of hours of homework.36* Correlation 3Fall number of hours of homeworkSpring semester GPA.69* Correlation 4Fall semester GPASpring number of hours of homework.18 Correlation 5Fall semester GPASpring semester GPA.45* Correlation 6Spring number of hours of homeworkSpring semester GPA.80**Indicates a statistically significant relationship.Of the correlations listed in the table, how many are autocorrelations?