The variable deliberately altered to observe its effect on the response variable is called

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Multiple Choice

The variable deliberately altered to observe its effect on the response variable is called

Explanation:
In experiments, the factor you deliberately change to see its effect is the explanatory variable. This is the input or cause you manipulate, while the response variable is what you measure to observe any effect. For example, if you adjust the amount of fertilizer and then record plant height, the fertilizer amount is the explanatory variable and height is the response variable. The other ideas here play different roles: the response variable is the outcome you measure, a control group is a baseline for comparison where you don’t apply the manipulating factor, and questionnaires are simply a method of collecting data.

In experiments, the factor you deliberately change to see its effect is the explanatory variable. This is the input or cause you manipulate, while the response variable is what you measure to observe any effect. For example, if you adjust the amount of fertilizer and then record plant height, the fertilizer amount is the explanatory variable and height is the response variable. The other ideas here play different roles: the response variable is the outcome you measure, a control group is a baseline for comparison where you don’t apply the manipulating factor, and questionnaires are simply a method of collecting data.

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