An Investigator Was Interested in Determining If the Size of a Coin

question 43

Multiple Choice

An investigator was interested in determining if the size of a coin influenced judgments of numerosity when people were asked to make judgments of how many coins were in a pile of coins.Fifteen subjects were asked to estimate the number of pennies in a display of 43 coins.In another condition,15 different subjects estimated the number of dimes for the same display.The value of the coin would be classified as a ____ variable.

• A)between-subjects
• B)within-subjects
• C)confounded
• D)disturbance

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Definitions:

Parasitism Success

The effectiveness with which a parasite is able to infect, exploit, and potentially reproduce within its host organism.

Heritable Trait

A characteristic or feature of an organism that can be passed from one generation to the next through genes.

Virulence Evolution

The process by which the harmfulness or pathogenicity of an organism changes over time, often in response to host immunity or treatments.

Population Size

The number of individuals of a species living within a specific area or ecosystem at a given time.