In science, a variable is any factor, trait, or condition that can exist in differing amounts or types. Scientists try to figure out how the natural world works.To do this they use experiments to search for …

When it comes to conducting a scientific experiment there are three components that are very important. They are variables, constants, and controls. Let’s take a look at each: Variables – These are the …

Scientists use an experiment to search for cause and effect. There are many items that could be altered to test the reaction of another. These changing quantities are called variables. A variable is any …

Active and Attribute variables: Based on the distinction between measured and experimental variables, a categorization of variables is developed that will be helpful in the study of research design.

This document describes the different types of variables one might encounter in different contexts. It is not meant to be a comprehensive reference; it only contains enough information to get by in this class.

• Variables associated with people include: date of birth, weight, height, years of educa-tion, annual income, hair color, sex, religion, marital status, whether or not a person ever smoked.

Identify variables as numerical and categorical. If variable is numerical, further classify as continuous or discrete based on whether or not the variable can take on an infinite number of values or only whole …