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Example Of A Manipulated Variable. In the plant experiment the manipulated variable is the light. In the salt and water experiment for example the manipulated variable is the amount of salt added to the water. So you put it in ab oven heat it slowly and measure it at different temperatures. For example if a basketball player is examining the number of points they get in each game the manipulated variable may be their shooting technique the control variable may be their level of fatigue and the time that theyre playing during the day and the response variable is the percentage of shots they make during a game.
Designing the manipulated variable is a critical part of the experiment. Often in experiments there are also controlled variables which are variables that are intentionally kept constant. What is manipulated variable. For example take a water tank level control system where make up water flow into the tank is the manipulated variable and tank level is the controlled variable. The manipulating element adjusts the controlled variable. In this case the variable is the type of fertilizers.
Its called manipulated because its the one you can change.
A manipulated variable is the independent variable in an experiment. The manipu-lating element is normally actuated by a special servo drive. In the salt and water experiment for example the manipulated variable is the amount of salt added to the water. The manipulated variable must not be confused with the control variable. For example for a period of time to see how ones weight changes in response one can lower ones calories intake as calories is the manipulated variable to learn if ones weight depends on the amount of calories one consumes. Designing the manipulated variable is a critical part of the experiment.