Suppose You Are a Researcher Who Has Bred Rats to Be

question 108

Multiple Choice

Suppose you are a researcher who has bred rats to be emotional and reactive and then you cross-foster those rats so they are raised by calm mothers.What result would you expect?

• A)The young animals will tend to be emotional and reactive as youths but calm when raising their own young.
• B)The young animals will tend to be calm throughout their lives.
• C)The young animals will tend to be mostly calm but emotional and reactive when faced with stressful situations.
• D)The young animals will tend to be emotional and reactive.

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Definitions:

Null Hypothesis

A statement of no effect or no difference, used as a starting assumption for statistical significance testing.

Grand Mean

The mean of means, calculated by taking the average of several group means.

Completely Randomized

A design in experiments where all subjects have an equal chance of being assigned to any group or treatment.

Factorial Design

An experimental strategy used to test the effect of two or more variables across multiple levels simultaneously.