Studies of Separated Identical Twins Have Had the Purpose of Measuring

question 10

Multiple Choice

Studies of separated identical twins have had the purpose of measuring the "heritability" of various characteristics including IQ.That heritability figure is defined as:

• A) the proportion of each person's intelligence that was determined by heredity.
• B) the proportion of the IQ variability within the tested population that was determined by heredity.
• C) the "leftover" variability in intelligence after all environmental influences have been accounted for.
• D) all of the above

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Definitions:

Memory Aids

Tools or techniques used to enhance or improve the ability to remember information.

Short-Term

Describing events, memory, or involvement lasting only a limited period of time, often contrasted with long-term.

Active Processing

The mental manipulation of information to retain it in short-term memory, integrate it into long-term memory, or solve problems.

Peterson and Peterson

Researchers known for their work on the duration of short-term memory, especially the experiment demonstrating rapid forgetting without rehearsal.