Luc is performing an experiment to determine if cocaine use causes learning difficulty in rats.Some rats are given no cocaine and some are given a fixed amount of cocaine.After 1 week of this treatment,the rats are taught to run a maze over 15 trials.In this example,running the maze is the independent variable.

Question

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In this experiment, the independent variable is the cocaine treatment (whether the rats are given cocaine or not), as it is the variable being manipulated to observe its effect on the rats' ability to learn the maze, which is the dependent variable.

Luc Is Performing an Experiment to Determine If Cocaine Use