Experimental Design

Experimental Design is a method used to plan and conduct experiments in a way that ensures valid and reliable results. It involves identifying variables, creating a hypothesis, and determining how to test it.

An Independent Variable is the variable that is changed or manipulated in an experiment to observe its effect on the dependent variable.

A Dependent Variable is the variable that is measured in an experiment to see how it is affected by changes in the independent variable.

Control Variables are the factors that are kept constant throughout an experiment to ensure that the results are due to the independent variable only.

Trials refer to the number of times each level of the independent variable is tested in an experiment.

A Hypothesis is a testable prediction about the relationship between the independent and dependent variables.

A Control Group is a group in an experiment that does not receive the treatment or independent variable, used for comparison.

Having multiple trials helps to ensure that the results are reliable and reduces the impact of random errors.

The purpose of an experiment is to test a hypothesis by manipulating one variable and observing the effect on another.

A Variable is any factor, trait, or condition that can exist in differing amounts or types in an experiment.