What is experimental manipulation?

Experimental manipulation refers to the deliberate alteration of one or more variables in an experiment to observe its effect on a dependent variable. This process is fundamental in scientific research, particularly in controlled experiments, as it allows researchers to establish cause-and-effect relationships. By manipulating independent variables while keeping other factors constant, scientists can isolate the impact of the changes made. Ultimately, this helps in validating hypotheses and drawing conclusions about the relationship between variables.