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EXTERNAL EVALUATOR

The person conducting an evaluation of a prgram who is not part of the program being evaluated.

EXTRACELLULAR SPACE

The fluid space of an organism outside the plasma membrane of cells.

EATING DISORDER

Any disorder featuring pathological eating behaviour.

ECHOPRAXIA

The automatic imitation of another person's gestures and movements. Also called echomatism- echomimia.

ECOLOGICAL VALIDITY

1. The degree where results obtained from research are representative to conditions in the wider world.2. Perception. The degree that

ECTOMORPH

A somatotype in Sheldon's constitutional theory of personality featuring a long, thin and fragile physique.

EDUCATIONAL GUIDANCE

The advice given to students to help them make suitable decisions regarding education. See educational counselling.

EFFECTANCE

The state of having a causal effect on an object.

EFFORT

The activation of mental or physical power.

EGO DEVELOPMENT

1. An infant's emerging consciousness being separate from others. 2. Classic psychoanalytical theory. Process where part of the id is

EGO WEAKNESS

Psychoanalytical theory. The ability of the ego to control impulses and to tolerate frustration, disappointment and stress. Compare ego strength.

EGO-SYNTONIC

Being compatible with the ego or conscious self concept. Compare ego-dystonic.

ELABORATION-LIKELIHOOD MODEL (ELM)

Theory of persuasion where an attitude change occurs on a continuum of elaboration and thus may result in little scrutiny

ELECTRIC SINK

A device that collects or dissipates electrical energy.

ELECTROMAGNETIC SPECTRUM

Range of wavelengths of electromagnetic radiation from short to radio waves.

ELECTROSTIMULATOR

An instrument delivering a controlled electrical stimulation to an area of the body.

ELIMINATION DISORDER

A disorder related to defacation and urination often seen in children.

EMBEDDED FIGURE

An ambiguous figure in an image that on further viewing takes on another not obvious image.

EMERGENCY INTERVENTION

Immediate action to minimse harm caused by a sudded unforeseen happening.

EMOTIONAL ABUSE

Form of non-physical abuse that may involve verbal abuse, demeaning actions, emotional control and witholding affection and supoort. Also called