The logic of the experimental method rests heavily on the assumption that
a. two variables are positively correlated.
b. experimental and control groups are alike in all important matters except for the independent variable.
c. experimental and control groups are alike in all important matters except for the dependent variable.
d. the independent variable is quantifiable and measurable.
Question 2
To determine if an energy drink will affect quiz results, twenty students are given an energy drink before taking a quiz. Twenty other students are given water before taking a quiz. The control group consists of the
a. students given the energy drink. c. students given water to drink.
b. students who did not take the quiz. d. None of these options.
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