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RANDOMIZATION TEST

Testing a hypothesis using all possible combinations of participants and conditions to be tested.

RANK TRANSFORMATION

A rank transformation is the replacement of the actual numerical score of an individual with the rank position of the

RATE OF CHANGE

The change in a variable per unit time divided by the value of the variable prior to the change. Example:

RATIONAL LEARNING

Learning through clear understanding of the material and understanding the relationship between the components of the material

RAYLEIGH EQUATION

The proportion of red and green stimuli needed for a healthy human eye to perceive the color yellow. It is

REACTIVE AGGRESSION

A physical act committed with little consideration of the consequences. Generally the act is associated with intent to harm and

READING DISORDER

A learning disorder showing a level of ability greatly below that of a typical member of the age group and

REALISTIC ANXIETY

Anxiety present when exposed to an identifiable and real threat or danger. This type of anxiety is founded in the

REASONABLE PERSON STANDARD

A standard established to establish whether or not a particular act or conduct constitutes sexual harassment. The basis of the

RECALL SCORE METHOD

Using a numerical value to score the number of items that can be recalled from memory.

RECESSIVE ALLELE

A type of gene allele that maifests its effect only if it is present on both member of a homologous

RECIPROCITY NORM

A social rule of conduct that states that people who help others will receive equivalent benefit from them in return.

RECONSTRUCTIVE PSYCHOTHERAPY

Mental therapy aimed at fundamental and comprehensive adjustment of a subject's personality by improving the subject's comprehension of personality growth,

RECURRENT CIRCUIT

Neurons and synapses within a system that allow nerve impulses to make a total path, returning to the starting point.

REDUCED MODEL

A model employing less parameters than provided in other models in a comparative set; remains a proper subset of the

REFERENCE GROUP

Concept which refers to a group with which another group or individual is compared. In sociology, a group that subjects

REFLECTIVE CONSCIOUSNESS

Referring to its own actions, an aspect of consciousness. Also known as: self-consciousness; self-reflection.

REFRACTIVE INDEX

An appraisal of the amount a wavelength bends as it passes from one transparent medium to the next. An indication

REGRESSION EFFECT

Proclivity of a subject who scores either very high or very low on a test to perform more toward the

REHABILITATION COUNSELOR

Professional trained in evaluating and assisting individuals suffering from mental, physical, or emotional impairment who are involved in rehabilitation.