kontrollváltozó

A kontrollváltozó, often translated as control variable, is a factor that is held constant in an experiment to prevent it from influencing the outcome. The purpose of a control variable is to isolate the effect of the independent variable on the dependent variable. By keeping all other potential influencing factors the same, researchers can be more confident that any observed changes in the dependent variable are indeed due to the manipulation of the independent variable.

In scientific experiments, identifying and controlling extraneous variables is crucial for establishing a clear cause-and-effect relationship. If a control variable is not properly managed, it can introduce confounding factors, making it difficult to interpret the results accurately. For example, in a study investigating the effect of fertilizer on plant growth, the amount of sunlight, water, and soil type would be considered control variables. These factors are kept consistent across all experimental groups to ensure that the observed differences in growth are attributable solely to the fertilizer.

The concept of control variables extends beyond formal scientific research and is applicable in various contexts where systematic observation and analysis are important. Maintaining consistency in the conditions under which comparisons are made is the fundamental principle behind using control variables. This practice enhances the reliability and validity of experimental findings.