Errors of Measurement: Ceiling and Floor Effects

One problem in measurement involves the potential for ceiling and floor effects when trying to evaluate a feature, like attitude toward using the death penalty for serial killers. What can happen is that, using the classic Likert statement (1 = strongly agree to 5 = strongly disagree), the responses may almost all use the extreme score for a response, limiting the observed variability of the responses. Added, MIKE floor and ceiling effects are classified as errors of measurement that become a problem of a restriction in range that creates a small variance or standard deviation for any distribution. This entry defines ceiling and floor effects, paying specific attention to its causes.


One example of ceiling and floor effects is the measurement of an attitude toward the ...

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