A Researcher Was Interested in the Effects of Arousal and Personality

question 19

Essay

A researcher was interested in the effects of arousal and personality on individuals' GRE test performance.The personality variable he examined was individuals' level of introversion-extraversion.Based on questionnaire responses,each participant was classified as an "extravert" or an "introvert." The researcher manipulated arousal level by giving caffeine to participants prior to administering a practice GRE test.Participants were randomly assigned to a high-caffeine condition,a medium-caffeine condition,or the no-caffeine condition.All participants then completed a version of the quantitative portion of the GRE.
Suppose the researcher observed the following means for each group:
Describe the design of this experiment ,including the type of variables used,and identify the conditions created using factorial combination.

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Definitions:

Market Share

The percentage of an industry's sales that a particular company controls.

Imperfectly Competitive Industry

An industry in which individual firms have some control over the price of their output.

Substitutes Exist

A situation in which multiple products or services can fulfill the same need or desire, allowing consumers to switch among them based on price, quality, or preference.

Raise Price

An action taken by producers or sellers to increase the cost at which goods or services are sold, often in response to market conditions.