Identical Twins Reared Apart Are More Similar in IQ Than

question 69

Multiple Choice

Identical twins reared apart are more similar in IQ than fraternal twins reared apart. A researcher who believes in the influence of environment more than heredity might explain this in what way?

• A) identical twins are more similar genetically
• B) the environments of the identical twin pairs were more similar
• C) the adoptive parents of the fraternal twin pairs were more similar than the adoptive parents of the identical twin pairs
• D) the identical twins were raised in genuinely different environments

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Definitions:

Bivariate Designs

Research designs that involve the investigation of two variables to determine their relationship or correlation with each other.

Ex Post Facto

A study or analysis conducted after an event has occurred, used to discover causes even though variables are not manipulated by the researcher.

Pretest Posttest

A research design that measures the effects of an intervention by comparing subject scores before and after the intervention.