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RETINAL

Pertaining to the retina. Aldehyde of retinol, containing vitamin A.

RETINOSCOPE

Instrument whose primary function is to appraise the refractive state of the eye.

RETRONASAL OLFACTION

The phenomenon of sensing smells, coming into being in the nasopharynx, caused by some odor causing agent in the mouth.

REVERSAL SHIFT

Discriminating between two opposing options, an inversion of contingencies in comparison to an immediately antecedent set. Compare with: nonreversal set.

REWARD

Layman terminology which is almost synonymous with the psychology term reinforcement.

RHINOLALIA

Nasal quality of the voice, usually resulting from a malformation or disease of the nasal passages.

RIDIT ANALYSIS

Scoring classification utilized in categorical analysis wherein the score for the category is the median rank score on the consequent

RIGHTSTART PROGRAM

Program which seeks to improve mathematical ability in young children, usually elementary students, made up of a 20 hour program,

RISK TOLERANCE

Extent to which a person is amenable to being endangered in pursuit of a goal or task completion. Amount of

ROBBERS' CAVE EXPERIMENT

Series of experiments in which boys from intact, middle-class families who were carefully screened to ensure psychological normalcy, and put

ROGERS, CARL

(1902-1987) Obtaining a doctorate from the Teachers College of Columbia University in 1931, Carl Rogers was a U.S. psychologist. He

ROLE SHIFT

In interactions between two people in a relationship, one party will adopt the characteristics and behavioral patterns of the second

ROOTWORK

Ethnic or folk faith structure, widespread in the southern part of the United States, along with the Caribbean; which blames

ROTTER INTERNAL-EXTERNAL LOCUS OF CONTROL SCALE (RIELC)

Spectrum employed to supply more knowledge about a client

RUFFINI'S CORPUSCLE

Type of gradually adjusting mechanoreceptor, believed to occur solely in the glabrous dermis and subcutaneous tissue of human beings. Thought

RUNWAY

Used in animal testing, the path which leads from a beginning section to a target section, or to the principal

RACIAL IDENTITY

An individual's sense of having their identity defined by belonging to a particular race or ethnic group. The strength of

RADICULITIS

The inflammation of a spinal root. Symptoms include loss of sensation and weakness in the body part served by the

RANDOM ERROR

An error that occurs purely by chance.

RANDOMIZED BLOCK DESIGN

A design in research where participants are classified into groups on the basis of an experimenter controlled variable. Participants within