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EXCITOTOXICITY

Property when a neuron dies from overstimulation.

EXERCISE ADDICTION

Being devoted and dependent on exercise.

EXISTENTIAL LIVING

Ability to live fully in the present and to respond to new experiences without fear.

EXOPHORIA

The deviation of one eye in an outward direction. See phoria.

EXPECTANCY-VALUE MODEL

Where motivation for an outcome depends on the significance of the outcome.

EXPERIMENT

The series of observations under controlled conditions used to study relationships to draw a causal inference.

EXPERIMENTAL VARIABLE

The variable that is being looked at. See independent variable.

EXPERT WITNESS

The person qualified to give evidence of a scientific nature or a professional matter.

EXPLORATORY EXPERIMENT

The experiment that gives an indication as to relationships among variables to use in more definitive experiments.

EXTENDED FAMILY

1. The family unit living in one household including parents, children, grandparents, cousins. 2. In modern western society the nuclear…

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.