Longman Dictionary of

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effect size n
a measure of the strength of one variable’s effect on another or the
relationship between two or more variables. When a researcher rejects the
null hypothesis and concludes that an independent variable had an effect,
an effect size is calculated to determine how strong the independent variable’s
effect (e.g. presence or absence of a bilingual programme) was on
the dependent variable (e.g. academic performance). Effect size is often
used as a common metric to make research results comparable across
studies as it puts studies on the same scale.
see also META-ANALYSIS
EFL n
an abbreviation for ENGLISH AS A FOREIGN LANGUAGE
egocentric speech n
speech which is not addressed to other people. This is one of two types of
speech which the psychologist Piaget observed in the speech of children
learning a first language. Egocentric speech serves the purpose of giving
pleasure to the child and of expressing the child’s thoughts, and provides
an opportunity for the child to experiment or play with speech. It may be
contrasted with socialized speech, or speech which is addressed to other
people and which is used for communication.
egocentric writing n
see READER-BASED PROSE
EGP n
an abbreviation for English for General Purposes
see ENGLISH FOR SPECIAL PURPOSES
elaborated code n
see CODE 2
elaborative rehearsal n
see REHEARSAL
e-language n
also externalized language
see I-LANGUAGE
e-language
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