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Adolescence is probably the most controversial of all periods of human development. Since the beginning of this century literally dozens of theories have been...

the timeframe of growth when physical maturation is has been attained and specific biologic, mental, cultural, individual characteristics, and various other developments concerned with...

in attribution theory, the principle that if someone performs an action when there are known constraints, his or her motive for acting must be...

A form of “socio- pathic personality disturbance” characterized by impulsive, egocentric, unethical behavior.The antisocial, or psychopathic, individual acts as if he has no conscience,...

Psychological instruments designed to measure personal attitudes on a variety of topics and issues.Typically, attitude scales contain a set of statements which represent different...

motivation stemming from the expectation or desiring of a reward, which is a condition for goal-directed behavior.

instruction or training using audio aids, visual aids, or both. Examples of such include films, slides, filmstrips, videotapes, audiotapes, television, and computers. This is...

the natural capacity of an individual to acquire competence or skill through training. Individuals who have the ability to learn to play the piano...

a linguistic sign, for example, a verbally spoken word, that bears no obvious resemblance to the thing or concept signified. Because the vast majority...

as an integral part of Jean Piaget's theory of cognitive development, this type of thinking is most often seen in children who are in...