Final answer:
An experiment is a controlled study conducted to determine the effect of varying one or more explanatory variables or factors has on a response variable. The affected variable is called the dependent variable or outcome variable. The variable that affects the dependent variable is called the independent variable.
Step-by-step explanation:
An experiment is a controlled study conducted to determine the effect of varying one or more explanatory variables or factors has on a response variable. Any combination of the values of the factors is called a treatment.
An experiment generally tests how one particular variable is affected by some other specific variable. The affected variable is called the dependent variable or outcome variable. The variable that affects the dependent variable is called the independent variable.
The purpose of an experiment is to investigate the relationship between two variables. Each value of the explanatory variable used in an experiment is called a treatment.