floor effect


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floor effect

A statistical error in which very low data points are not registered or counted because of an artificial limitation that prevents them from being appropriately noted and recorded. In research on certain variables, e.g., body temperature, data are meaningless below levels incompatible with life.
References in periodicals archive ?
What I saw basically reflected what we call the floor effect of the VAS scores in the epidural group.
Results suggest a notable floor effect in the distribution of age-equivalent scores that was not observed in the raw score or standard score distributions.
Others like cork bark from florists to give a forest floor effect.
Due to a failure to replicate the construct validity of the RI, further examination of relationships between the RI and SRSI-R were not conducted SRSI-R scores were high at each measurement period and a floor effect was present for many scales with high scores obtained after a period of rest.
I say dreaded because at one point, Port Talbot DJs discovered ultra violet lighting as a dance floor effect.
Also, in the saute, much lower inter-subject variability was observed in the floor effect on lower extremity stiffness.
Research co-leader Dr Cheti Nicoletti said: "There seems to be a sticky floor effect for highly neurotic people and highly introverted people.
Students were first given their painted backgrounds and using complementary colored oil pastels, created designs on their walls, making a soft wallpaper effect, as well as lines on their floor to create a type of textured wooden floor effect.
The proportion of orthogonal slope change and that of floor effect of each pair of baseline-treatment phases were computed in order to examine whether orthogonal slope change or floor effect would influence the computations of the PND and PEM scores.