In research, what is the primary goal of controlling variables?

The primary goal of controlling variables in research is to validate the research outcomes. When researchers control variables, they minimize the influence of external factors that could confound the results. By isolating the effect of the independent variable on the dependent variable, researchers can attribute any observed changes directly to the manipulation of the independent variable. This rigorous control enhances the validity of the experiment, ensuring that the conclusions drawn are based on clear, interpretable evidence rather than extraneous influences.

In contrast, complicating an experiment or measuring participant attitudes do not align with the main objective of controlling variables. Investigating trends also involves analysis of data but does not specifically focus on the validation aspect that controlling variables provides. Thus, controlling variables is essential for ensuring the reliability and credibility of the research findings.