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DERMATOGLYPHICS

The study of the lines on the skin of the hands, fingers and soles of the feet.

DESCRIPTIVE RESEARCH

An empirical investigation to test a hypothesis or to look at conditions, relationships.

DESPONDENCY

A state of apathy and a depressed mod.

DETERIORATION INDEX

Subtest scores on the Weschler Adult Intelligence Scale.

DEUTERANOMALY

Colour blindness where green is not seen properly or is confused with red.

DEVELOPMENTAL PSYCHOLOGY

Branch of psychology dealing with changes from conception into old age. Introduction Understanding the complexities of human growth across the

DEVIANT BEHAVIOR

Any behaviour that deviates from the group. Also called deviance.

DIABETES MELLITUS

Metabolic disorder caused by the ineffective production of insulin.

DIAGNOSTIC OVERSHADOWING

The failure to see a problem because the symptoms are attrinuted to another disability. See dual dignosis.

DIASCHISIS

The loss of function in a region of the brain from injury or damage.

DICHOTOMOUS VARIABLE

A variable with only 2 values.

DIFFERENTIAL ACCURACY

The way of determining how accurately a person's traits differ from the sterotype attributed to them such as age or

DIFFERENTIAL RELAXATION

Technique where we exert only the muscle tension required for an activity.

DIGIT SPAN

An attention test to see how many numbers a person is able to remember. There is a forward and backward

DILUTION EFFECT

Animal behaviour. A large group of animals has a better chance of eluding a large animal preying on them than

DIPLACUSIS

Condition where a single tone is heard as 2 tones.

DIRECT SELECTION

A form of natural selection where a trait will improve the likelihood of the offsprings survival to reproduce.

DIRECTIVE GROUP PSYCHOTHERAPY

Group therapy that helps a person adjust to their environment through tasks and therapeutic recreation.

DISCHARGE PROCEDURE

Process of releasing a patient from a hospital or institution.

DISCOVERY LEARNING

Learning that we get by solving problems and formulating hypotheses.