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Sixty students were randomly divided into two groups as part of a study ono the effects

of alcohol on reaction time. Each member of one group consumed a specified amount of alcohol and members of the other group had a non-alcoholic beverage. The reaction time of both groups were measured before and after taking the beverage/alcoholic drink.


_______1. What is the independent variable?

a. amount of alcohol

b. reaction time


c. one student

d. sixty students


_______2. What is the dependent variable?

a. amount of alcohol

b. reaction time


c. one student

d. sixty students


_______3. What is the experimental unit?

a. amount of alcohol

b. reaction time


c. one student

d. sixty students


_______4. Which of the following is/are potential extraneous variable/s in this study?

Sagot :

mahdi2003

Answer:

i think 3 is b but i dont know exactly

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