12
May
Independent Dependent And Controlled Variable Examples. - An independent variable thats not a controlled variable may be air pressure it affects the output of your dependent variables but isnt readily controllable. Electricity voltage controlled in volts independent variable. The controlled variables or constant variables are factors that the scientist wants to remain constant if the experiment is to show accurate results. The difference is in the mind of the investigator not in statistics.
Temperature is a much common type of controlled variable. Control variables might include water sunlight and soil. The independent variables are the administration of the drug - the dosage and the timing. The independent variable is the variable the experimenter manipulates or changes and is assumed to have a direct effect on the dependent variable. In a study to determine whether how long a student sleeps affects test scores the independent variable is the length of time spent sleeping while the dependent variable is the test score. The difference is in the mind of the investigator not in statistics.
For example suppose you want to study the effect of some drug on some condition.
The controlled variables or constant variables are factors that the scientist wants to remain constant if the experiment is to show accurate results. A control variable is an independent variable just one that is not the focus of the study. The dependent variable is the factor that changes as a result of the change to the independent variable. Changing the amount of fertilizer given to plants as an independent variable. Example of an Independent and Dependent Variable For example a researcher might change the amount of water they provide to a certain plant to observe how it affects the growth rate of the plant. Some other examples of controlled variables could be the amount of light or constant humidity or duration of an experiment etc.