Matt’s experiment was designed to find out if reading an entire chapter at once led to better test grades than reading a section at a time over several days. The dependent variable in his experimental research was .

a) the test grade
b) the length of the chapter
c) reading an entire chapter
d) reading a section at a time

The answer to this question is (a) The test grade

Step-by-step explanation:

A variable is an object, event or idea that is been measure in a particular research. There are basically two types of variable that a research entails.  

(1) independent variable  (2) dependent variable

An independent variable is variable that stands alone and that doesn't change as a result of other variable. On the other hand, a dependent variable changes as a result of other factors (i.e) it depends on other factors.

In relation to the question above, the dependent variable in Matt's experiment is the test grade because it changes as a result of the reading method selected

  Hence the answer is (a) The test grade

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above

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step-by-step explanation: