Paper 1 · Research Aptitude
An experiment is performed to test the effect of sleep deprivation on rote memory. In this experiment, the dependent variable is the
ANumber of hours subjects go without sleep
BRote memory scores ✓ Correct
CNumber of subjects deprived of sleep in the experimental group
DCorrelation between hours of sleep and fatigue
Correct answer: (B) Rote memory scores — The dependent variable here is the rote memory scores, so that is the answer.
Explanation
★The dependent variable here is the rote memory scores, so that is the answer.
★The dependent variable is the outcome that is measured to see the effect.
★Here the experiment measures rote memory, so the memory scores are the dependent variable.
★The number of hours without sleep is the manipulated cause, so it is the independent variable.
★The number of subjects deprived of sleep is a detail of the design, not the measured outcome.
★A correlation with fatigue is a separate relationship, so the dependent variable is the rote memory scores.
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