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DELIRE DU TOUCHER

A compulsion to touch objects.

DELUSION OF PERSECUTION

The belief where a person hinks he is being conspired against. See persecutory delusion.

DEMENTIA PRAECOX

Obselete name for schizophrenia meaning deterioration of the mind.

DEMOTIVATION

The use of negative imagery and self-talk as to why you can't do anything well.

DENSITY

1. The compactness of an element that reflects impenetrability. 2. The amount of space for each person in an area.

DEPENDENCE

1. A person's state when the need assistance from others.2. See substance dependence. 3. Operant conditioning. The causal relationship between

DEPRESSION

1. A dysphoria that can cary from mild to severe mood changes. 2. Psychiatry. A dpressive disorder.

DEPTH INTERVIEW

An interview that reveals deep seated feelings, attitudesand motives without fear of disapproval.

DERIVED NEED

The need that is developed from a primary need.

DESCRIPTIVE AVERAGE

The estimate of the average from only a partial set of data.

DESKILLING

Redesigning a task so it easier to learn and requires less skill to do.

DETAIL PERSPECTIVE

A depth cue related to texture and the details on a surface.

DETOXIFICATION CENTER

The place where detoxification takes place. See alcohol withdrawal- substance withdrawal.

DEVELOPMENTAL MILESTONE

Any aspect of development that is predictable and significant.

DEVELOPMENTAL TEST OF VISUAL-MOTOR INTEGRA

A measure of visuomotor development where the particpant copies increasingly difficult designs.

DFBETAS

Regression analysis. Looks at differences in the beta value in estimating regression coefficients.

DIAGNOSTIC EDUCATIONAL TESTS

Tests that are used to identify any deficiences in academic learning. Also called eduactional tests.

DIANETICS

Controversial technique of therapy that treats all organic mental ills and all inorganic psychosomatic ills with the assurance of complete

DICHORIAL TWINS

Twins with separate chorionic membranes as embyos. Compare monochorial twins.

DIETING

The restriction of food in order to lose weight.