ADHD

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DETERIORATION EFFECT

After partcipating in psychotherapy this is the adverse or negative outcome from it.

DISCONTINUITY THEORY

Compare to continuity hypothesis. See all-or-none learning hypothesis- eureka task.

DOUBLE BLIND

An experimental procedure where the nature of the experiment is not known. See blind. Compare single blind- triple blind.

EFFICACY

1.The competence of behavioural performance with reference to a person's perception of performance capabilities. 2. Pharmacology. Dealing with dose relationship.

ENRICHED ENVIRONMENT

An environment offering many opportunities for activity with lots of sensory and intellectual stimulation. See enrichment.

EXPECTANCY

1. Behavioural psychology. The state where an organism anticipates an event based on previous experience. 2. Cognitive psychology. Mental set

EXTINCTION

1. Biology. Loss of a species or genus completely or in a certain environment. 2. Neurophysiology. A decrease in a

MANIFEST GOAL

is the openly stated goal or aim of a specific piece of research. This goal will be evaluated at the

MEDITATION

is considered an exercise during which the individual enters an extended state of contemplation and reflection over a specific subject

MIXED-STANDARD SCALE

is a test of behaviour evaluation. Participants are presented with a selection of behaviours and asked to evaluate them based

NAIVE PARTICIPANT

is a participant to a study which is not aware of the experimental hypothesis and who has not participated in

NULL HYPOTHESIS

the statement postulating an experiment will find no variations between the control and experimental states, which is, no union between

ORGANIC

adjective. 1. designating a state or illness which is essentially somatic or physical, as compared to operational or psychogenic. 2.

PASSIVE AVOIDANCE

a form of operant conditioning wherein the person must abstain from a graphic act or reaction which will generate a

PERSEVERATIVE ERROR

the ongoing repetition of an error.

DEVELOPMENT

The progressive series of change in something.

DISCOUNTING PRINCIPLE

Theory where a cause is given less weight if ther are other causes possible. Compare augmentation principle.

DOUBLE STANDARD

A hypocritical belief where one behaviour is admissible in one group but not in the other.

EGO FUNCTIONS

Psychoanalytical theory. The variouis functions of the ego including self awareness, problem solving, controlling motor functions, memeory etc.

ENVIRONMENTAL LOAD THEORY

The theory that humans have a limited ability to handle environmental stimuli.