In One Study, Half of the Rats Are Given One

question 58

Multiple Choice

In one study, half of the rats are given one food pellet each time they correctly run a maze, and the other half of the rats are given two food pellets each time they correctly run a maze. The researchers record the average amount of time it takes the rats to run the maze. In this study, the number of food pellets represents the __________ variable.

• A) independent
• B) dependent
• C) extraneous
• D) intrinsic

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Definitions:

Twin Study

A research method in psychology that compares the resemblance between identical and fraternal twins to estimate the genetic and environmental influences on traits.

High Fertility

a demographic term signifying a high rate of births within a population, often measured by the number of live births per thousand people per year.

Epigenetics

Investigating the differences in organisms that stem from the alteration of gene expression levels rather than changes in the genetic sequence.

Sociosexuality

An individual's tendency or orientation toward engaging in sexual activity outside of a committed relationship.