A team of researchers administered a personality inventory that measures 15 personality traits to a group of entering students in a doctoral program in education. They also determined students' gradepoint average (GPA) at the end of the first year of the program. They then used multiple regression to determine which combination of personality traits best predicts GPA in this situation. The following is their table of results.

a. What information is provided by the beta weights in the first data column?
b. What information is provided by the fact that the beta weight for conformity is .35, whereas for introversion it is .21?
c. What does the correlation coefficient of .15 for independence in the second data column mean?
d. What does the multiple correlation coefficient of .37 in the third data column mean?
e. What does the R²value of .08 in the fourth data column mean?
f. What does the R²increment of .02 in the fifth data column mean?

Question

A team of researchers administered a personality inventory that measures 15 personality traits to a group of entering students in a doctoral program in education. They also determined students' gradepoint average (GPA) at the end of the first year of the program. They then used multiple regression to determine which combination of personality traits best predicts GPA in this situation. The following is their table of results.

a. What information is provided by the beta weights in the first data column?
b. What information is provided by the fact that the beta weight for conformity is .35, whereas for introversion it is .21?
c. What does the correlation coefficient of .15 for independence in the second data column mean?
d. What does the multiple correlation coefficient of .37 in the third data column mean?
e. What does the R²value of .08 in the fourth data column mean?
f. What does the R²increment of .02 in the fifth data column mean?

Quizplus · Accepted Answer

The Answer of A team of researchers administered a personality inventory that measures 15 personality traits to a group of entering students in a doctoral program in education. They also determined students' gradepoint average (GPA) at the end of the first year of the program. They then used multiple regression to determine which combination of personality traits best predicts GPA in this situation. The following is their table of results. a. What information is provided by the beta weights in the first data column? b. What information is provided by the fact that the beta weight for conformity is .35, whereas for introversion it is .21? c. What does the correlation coefficient of .15 for independence in the second data column mean? d. What does the multiple correlation coefficient of .37 in the third data column mean? e. What does the R²value of .08 in the fourth data column mean? f. What does the R²increment of .02 in the fifth data column mean?

A Team of Researchers Administered a Personality Inventory That Measures