Aschool psychologist wants to test the effectiveness of a new method of teaching art. she recruits 600 second-grade students and randomly divides them into two groups. group 1 is taught by means of the new method, while group 2 is taught via traditional methods. the same teacher is assigned to teach both groups. at the end of the year, an achievement test is administered and the results of the two groups compared. what is the response variable in this experiment?
a. the students’ ability in art
b. the score of group 1 on the achievement test
c. the score on the achievement test.
d. the score of group 2 on the achievement test

c. The score on the achievement test of both groups.

Step-by-step explanation:

A school psychologist recruits 600 second-grade students and randomly divides them into two groups.

Group 1 is taught by means of the new method, while Group 2 is taught via traditional methods.

We have to find the response variable. A response variable is the outcome variable or dependent variable in the experiment.

Here this is - The scores on the achievement tests of both group 1 and group 2.

because they could drop even lower..

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign