A branch of psychology devoted to the study of the classification, aetiology, diagnosis, treatment, and prevention of mental disorders and disabilities. Also called psychopathology. Compare clinical ...
An index of visual acuity based on the familiar Snellen chart used by optometrists and opticians, on which are printed upper-case letters arranged in size from the largest at the top to the smallest ...
In operant conditioning, a simple reinforcement schedule in which reward follows the first response that the organism makes after a predetermined time interval, and then the first response that it ...
In operant conditioning, a simple reinforcement schedule in which reward follows the first response that the organism makes after a random time interval, and then the first response that it makes ...
A measure of visual acuity, usually determined with an acuity grating, equal to the visual angle corresponding to the finest grating in which separate bars can be distinguished. A person with normal ...
A neuroreceptor in a postsynaptic neuron specialized to respond to a neurotransmitter released from a presynaptic neuron.
In psychometrics, Cronbach's alpha coefficient of reliability in the special case of a scale with pass/fail, yes/no, or other dichotomous test items. There are two slightly different versions based ...
1 A person who is ardently enthusiastic about something.2 A colloquial name for a person with acrotomorphilia.
A branch of applied psychology involving work at a community level, often including counselling and health psychology.
A memory aid based on acronyms. See under mnemonic. [From Greek akros topmost + onoma a name]
Another name for a difference threshold or just noticeable difference. DL abbrev. [From Latin limen a threshold]
A morpheme that can occur on its own as a word, such as tree. Compare bound form.
A less common name for factitious disorder or Munchausen syndrome. [From Greek pathos suffering + mimos a mime]
A peculiar sense of loss of meaning that occurs when a word is recited slowly 15 or 20 times in succession. Compare verbal transformation effect.
In psychometrics, a correlation coefficient or other numerical index of the reliability of a test or measure.
A memory aid based on the numbers of letters in a sequence of words. See under mnemonic.
Another name for hypovolaemic thirst. [From Greek volumen a roll + metron a measure + haima blood]
The smallest unit of kinesic behaviour having a distinctive function. Compare morpheme. [A blend of kine(sic) and morph(eme)]
A gradual diminution in sensitivity of a sensory receptor or neuron resulting from prolonged or repeated stimulation.
Another name for a slip of the tongue. [From Latin lapsus an error + lingua a tongue]