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Floor and ceiling effects traduction.
Ceiling effects and floor effects both limit the range of data reported by the instrument reducing variability in the gathered data.
Limited variability in the data gathered on one variable may reduce the power of statistics on correlations between that variable and another variable.
In layperson terms your questions are too hard for the group you are testing.
The term ceiling effect is a measurement limitation that occurs when the highest possible score or close to the highest score on a test or measurement instrument is reached thereby decreasing the likelihood that the testing instrument has accurately measured the intended domain.
Floor and ceiling effects in the ohs an analysis of nhs proms floor and ceiling effects in the ohs an analysis of nhs proms glossary floor and ceiling effects in the ohs an analysis of nhs proms.
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.
Each intelligence or achievement test usually has an upper limit ceiling designed to be the highest attainable score and yet there are situations when the items are too easy for an exceptional participant compare floor effect.
Psychology definition of floor effect.
There is very little variance because the floor of your test is too high.
The inadequacy of a test to measure the true ability and intelligence of a child.