FLOOR EFFECT By N., Pam M.S. - May 11, 2013 the inability of a test to measure or discriminate below a certain point, usually because its items are too difficult. Compare ceiling effect. FLOOR EFFECT: "The floor effect is a test measure that won't go below a certain point." Related Psychology Terms CEILING EFFECT CEILING EFFECT ITEM ANALYSIS BECK ANXIETY INVENTORY (BAD) BASIC ACHIEVEMENT SKILLS INDIVIDUAL SCREENER (BASIS) INTERNAL CONSISTENCY CEILING AGE WIDE-RANGE TEST GENERATION EFFECT FACE VALIDITY Cite this page: N., Pam M.S., "FLOOR EFFECT," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/floor-effect/ (accessed March 20, 2019).