Glossary E

Ecological validity refers to the degree to which particular findings in one environmental context may be considered relevant outside that context; the extent to which the findings of

Ecological/Sociological model refers to the Theory that children's behaviors are not inherently inappropriate but only acquire meaning when examined in relation to the social and cultural context or situation in which they occur.

Ecology is defined as the distribution of human groups with reference to material resources, and the consequent social and cultural patterns. Ecology is the branch of Biology that deals with the relationships between living organisms and their environment.

Economics is defined as the study of the production, distribution, and consumption of goods and services, and the study of money

Ecstasy refers to a club drug made from methylene-dioxymethamphetamine (MDMA). Known as club drug, it is both a stimulant and a hallucinogen, and its side effects are potentially life-threatening.

- ECT (Electroconvulsive Therapy) : - ECT (Electroconvulsive Therapy ) : ECT also know as Electroconvulsive therapy refers to a type of psychiatric therapy which involves the controlled introduction of electric currents to the brain for the purpose of inducing a convulsion which will alter the patient's brain chemistry. This treatment is primarily used in the management of depression , although it also has been utilized to treat patients with Schizophrenia and Mania .

Ectoderm refers to the outer layer of the embryo , which will become the hair, the outer layer of skin, and the nervous system ; outermost cell layer of the newly formed embryo from which the skin and nervous system develop.

Ectomorph refers to a body type originally described as thin and fragile, with long, slender, poorly muscled extremities, and deli