application or intradermal injection of a substance to the skin to test the body's reaction to it. Such a test detects an animal's sensitivity to such allergens as dust and pollen, or to preparations of microorganisms believed to be the cause of a disorder.
A direct relationship graph is a graph where one variable either increases or decreases along with the other. The general equation for a direct relationship graph is y = mx + b, where y denotes the...
Some linear relationships between two objects can be called a 'constant of proportionality'. This relationship appears as Y=kX, where k is the constant, and Y and X are the proportional quantities. When analyzing behavioral data, there is rarely a perfect linear relationship between variables.