RACIAL AND ETHNIC DIFFERENCES

The supposed differences between one or more ethnic or racial groups. There is no empirical evidence of innate differences between ethnic groups regarding...

RADICAL THERAPY

A clinical course of treatment focusing on the harmful psychological effects of social problems on clients. This intervention encourages individuals to change society...

RANDOM ACTIVITY

behavior with little or no apparent goal, but could have intrinsic purpose

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 score within the entire...

RATE OF CHANGE

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

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 an indication of...

REACTIVE AGGRESSION

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

READING DISORDER

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

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