ROLE-PLAYING RESEARCH

Study wherein a party takes on a role and strives to act as though the role actually belongs to them. Critics insist that...

ROSTRA)

Snout-like or beak-like projection, like that which exists on the corpus callosum where the anterior bend curves back under the frontal lobe.

ROUND-TABLE TECHNIQUE

Group-psychotherapy strategy employed in a medical center environment. Three adjoining areas are needed. In the first, the counselor and others make use of a...

RULE-ASSESSMENT APPROACH

Concept which describes intellectual growth with respect to the regulations and progressively more potent tactics children employ to resolve difficulties. See also: adaptive...

RADIAL GLIAL CELLS

Early in development, the radial glial cells are located in the neuroglia and span the width of the emerging cerebral hemispheres and guide migrating...

RADIOGRAPH

An image formed on a photo-sensitive surface by radiation. An x-ray is a radiograph. Radiographs are produced through a process called radiography....

RANDOM NUMBERS

Number sets generated by chance alone with no predictable order or pattern.

RANDOM-RATIO SCHEDULE (RR SCHEDULE)

Where reinforcements are scheduled randomly as determined by the number of responses needed for reinforcement. The number of responses varies from reinforcement...

RAPID CYCLING

Rapid cycling describes mood disturbances that fluctuate over a short time span. The cycling most commonly occurs between manic and depressive episodes. The condition...

RATING SCALE JUDGMENT TASK

A task where participants are asked to assign a confidence rating to their "yes" or "no" answers.

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