DEFECT ORIENTATION

A service planning process that focuses on a person's limitations, deficits and disabilities. See defect theory. Compare development orientation.

DEFERRED IMITATION

Imitating an act some time after it happened. Proposed by Jean Piaget and first seen at around 18 months old.

DEGREES OF FREEDOM

1. Number of elements free to vary in a statistical calculation. See chi-square distribution. 2. Motor control. The joints and muscles that move to...

DEJA RACONTE

French-told before. The idea that a long forgotten event has been told before. See false memory.

DELAYED RESPONSE

A response to a stimulus after it has been removed.

DELTA MOVEMENT

The apparent movement of a brighter stimulus toward a darker one.

DEMAND

The internal or external condition that causes a need in an organism. Generally a urgent need or requirement.

DEMOGRAPHIC PATTERN

A pattern revealed by a population variable such as birth and death rates, income, medical health etc.

DENDRITIC ZONE

Any part of the surface that is receptive.

DENYING THE ANTECEDENT

The formal fallacy the denies the antecedent. See affirming the antecedent- affirming the consequent.

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