If the Half-Life of Carbon-14 Is About 5,700 Years,then of a Given

question 14

Multiple Choice

If the half-life of carbon-14 is about 5,700 years,then of a given starting quantity,after 22,800 years (four half-lives) ,what fraction of the original amount will be left?

• A) None
• B) 1/4
• C) 1/8
• D) 1/16

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Definitions:

External Validity

The extent to which the results of a study can be generalized to other situations and to other people.

Multiple Act Criterion

A standard in social and behavioral research that emphasizes judging behaviors or actions based on a series of observations, rather than a single instance.

Thurstone Scale

A psychometric scale developed by Louis Thurstone to measure attitudes, consisting of statements about a particular issue with varying degrees of agreement or disagreement.

Dimension of Measurement

A specific aspect, property, or characteristic that can be measured or quantified.