Why are most factors held constant in a scientific experiment?
Answer: the only part of an experiment that ever changes is the independent variable.
Why are most factors held constant in a scientific experiment?
how are hypotheses and theories related?
Explanation: In a scientific experiment, it is common practice to hold most factors constant in order to isolate the effect of the independent variable. The independent variable is the variable that is intentionally manipulated by the researcher to observe its effect on the dependent variable, which is the variable being measured or observed. By controlling and keeping other factors constant, scientists are able to attribute any observed differences in the dependent variable solely to the changes in the independent variable.
This approach allows researchers to establish cause-and-effect relationships between variables with more confidence. By minimizing the influence of extraneous factors, known as confounding variables, scientists can be more certain that any observed effects are truly caused by the independent variable and not any other factors. If multiple independent variables are introduced or if other factors are not held constant, it becomes difficult to determine which factor is responsible for any changes observed in the dependent variable.
However, it is important to note that in certain experimental designs, researchers intentionally manipulate multiple independent variables or control some factors while allowing others to vary to examine their interactions and effects. This is more common in complex experimental studies or when studying dynamic systems.