Define Floor Ceiling Effects

A floor effect is when most of your subjects score near the bottom.

Define floor ceiling effects. It essentially describes when the dependent variable has leveled out and is no longer responding to the independent variable. An example of use in the first area a ceiling effect. This lower limit is known as the floor. The term ceiling effect has two distinct meanings referring to the level at which an independent variable no longer has an effect on a dependent variable or to the level above which variance in an independent variable is no longer measured or estimated.

The floor effect is a test measure that won t go below a certain point. The ceiling effect is one type of scale attenuation effect. Let s talk about floor and ceiling effects for a minute. This is even more of a problem with multiple choice tests.

The inability of a test to measure or discriminate below a certain point usually because its items are too difficult. Ceiling effect is used to describe a situation that occurs in both pharmacological and statistical research. There is very little variance because the floor of your test is too high. In layperson terms your questions are too hard for the group you are testing.

In pharmacology a ceiling effect is the point at which an independent variable which is the variable being manipulated is no longer affecting the dependent variable which is the variable being measured. The other scale attenuation effect is the ceiling effect.