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Question

In an experimental evaluation, what is the purpose of independent variables?

a.

They are measured to determine outcomes.

b.

They are manipulated to change the experimental conditions.

c.

They depend on the value of dependent variables.

d.

They indicate the quality of user performance.

Posted under Human Computer Interaction

Answer: (b).They are manipulated to change the experimental conditions. Explanation:Independent variables are manipulated to create different conditions for comparison in an experiment.

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Q. In an experimental evaluation, what is the purpose of independent variables?
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