a student is investigating his test taking strategies. he can measure the number of calories eaten for…

a student is investigating his test taking strategies. he can measure the number of calories eaten for breakfast on the day of the test, the score achieved on the test, the number of minutes studied the day before the test, and the hours slept the night before the test. if he wants to investigate how the number of hours slept affects his test score, what independent, dependent, and control variables should he use? independent variable: dependent variable: control variables:

a student is investigating his test taking strategies. he can measure the number of calories eaten for breakfast on the day of the test, the score achieved on the test, the number of minutes studied the day before the test, and the hours slept the night before the test. if he wants to investigate how the number of hours slept affects his test score, what independent, dependent, and control variables should he use? independent variable: dependent variable: control variables:

Answer

Brief Explanations:

The independent variable is the factor that is changed or manipulated. Here, the number of hours slept is what the student is changing to see its effect. The dependent variable is the outcome that is measured, which is the test score as it is expected to be affected by the hours slept. Control variables are factors that could influence the test - score but are kept constant to isolate the effect of the independent variable. In this case, the number of calories eaten for breakfast and the number of minutes studied are such factors.

Answer:

Independent Variable: Number of hours slept Dependent Variable: Test score Control Variables: Number of calories eaten for breakfast, Number of minutes studied the day before the test