Children are randomly assigned to complete a low,moderate,or high difficulty task.The time (in seconds)it takes them to complete the task is recorded.In this example,the level of task difficulty is the dependent variable.

Question

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The level of task difficulty is the independent variable, as it is the condition that is manipulated to observe its effect on the dependent variable, which is the time taken to complete the task.

Children Are Randomly Assigned to Complete a Low,moderate,or High Difficulty