A Researcher Plans to Use a Matched Groups Design to Assess

question 54

Multiple Choice

A researcher plans to use a matched groups design to assess a treatment for increasing body weight of premature infants.The independent variable has two conditions,treatment and control.Eight pairs of premature infants are matched according to their body weight prior to manipulating the independent variable.In order to control for other potentially relevant characteristics of the participants,the researcher should

• A) identify a matching variable uncorrelated with body weight.
• B) assign the lower weight infant in each pair to the treatment condition.
• C) randomly assign infants in each pair to the treatment or control group.
• D) none of these

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Definitions:

Utility Function

A mathematical representation in economics that portrays an individual's preference ranking for different bundles of goods or outcomes.

Expected Utility

A theory in economics that calculates the utility expected from different choices to assess risk and make decisions.

Income

The financial gain that an individual or business receives, usually from employment, business activities, or investments.

Utility Function

A mathematical representation of how a particular good or set of goods generates satisfaction or utility for an individual or consumer.