A Researcher Was Interested in the Effects of Arousal and Personality

question 58

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: Identify the means for the main effect of each independent variable and indicate whether you believe the main effects would be statistically significant.

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Definitions:

Current Liabilities

Obligations or debts that a company is expected to pay off within a year, such as accounts payable and short-term loans.

Decreases

A reduction in quantity, size, or the overall level of an economic indicator or financial value.

Expenses With No Cash Outflows

Costs recognized in the accounting period that do not require an immediate cash outlay, such as depreciation.

Expenses and Losses

Outflows or the using up of assets as a result of the company's efforts to generate revenue, including losses from various sources.