FLOOR EFFECT

the inability of a test to measure or discriminate below a certain point, usually because its items are too difficult. Compare ceiling effect.

FLUMAZENIL

the drug that is used to reverse the symptoms of an overdose of benzodiazepine and to reverse anaesthesia. It displaces benzodiazepine from binding sites....

FOCAL MOTOR SEIZURE

the name of a simple partial seizure that results in motor abnormalities and is due to localised seizure activity in brain areas important for...

FOLIE A CINQ

a shared psychotic disorder where 5 members of the same family have similar or identical delusions. It is a French phrase meaning 'insanity of...

FONTANEL (FONTANELLE)

the soft, membrane-covered area in the incompletely ossified skull of a newborn. They will close before the 2nd year of life, as the skull...

FORCED DISTRIBUTION

a rating system where the raters must use a prescribed number of entries for each level of the rating scale used.

FOREPLAY

the name that is given to any activity people engage in before having coitus. It encourages sexual arousal and includes kissing and cuddling and...

FORMAL LOGIC

the name given to the system of prescribed rules for generating valid conclusions or predictions from initial axiomatic assumptions or knowledge. It is often...

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