What proportion of the dependent variable is predictable fro

What proportion of the dependent variable is predictable from the model above? Using the matrix below, which variable would be the best for predicting final grade? What proportion of the final is predictable from the midterm? What proportion of the final predictable from the present?

Solution

52) total proportion of depebden variable predicted from the pedictor variable = R square

= 85.6%

or 86% approximately

53) midterm scores will be best for predicting the final grades because mid term scores is highly correlated (0.767) with the final test scores

54) total proportion of the dependent variable explained by midterm is = (0.767)^2

=0.58

= 58% approximately

55) total proportion of dependent variable esplained by pretest = (0.535)^2

= 0.28

or 28% approximately