What is the variable being tested in an experiment called?
read under the controlled experiments section:
http://en.wikipedia.org/wiki/Experiment
I don't know myself. I am asking the same question.
The variable being tested in an experiment is commonly known as the independent variable. The independent variable is the factor that is deliberately manipulated or changed by the researcher in order to observe its effect on the dependent variable.
To identify the independent variable in an experiment, you can follow these steps:
1. Understand the experiment: Familiarize yourself with the purpose of the experiment and what the researcher is trying to investigate.
2. Identify the different factors: Determine the various elements or factors that are being manipulated or controlled within the experiment.
3. Determine cause and effect: Consider the cause and effect relationship between the factors. The independent variable is the one that is hypothesized to have an effect on the dependent variable.
4. Look for intentional manipulation: Pay attention to any intentional changes made by the researcher. The variable that is intentionally altered or controlled is likely to be the independent variable.
For example, if a researcher wants to determine the effect of different fertilizers on the growth of plants, the independent variable would be the type of fertilizer being used. The researcher intentionally manipulates or changes the type of fertilizer to observe its impact on the growth of the plants.
Remember, identifying the independent variable is crucial for understanding the cause and effect relationship in an experiment.