Figure: a Researcher Was Interested in the Effects of Arousal and and Personality

question 51

Multiple Choice

Figure:
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 conditions.All participants then completed a practice version of the quantitative portion of the GRE.
Suppose the researcher observed the following means for each group:
-The means for the main effect of personality are

• A)500 and 700.
• B)600,600,and 600.
• C)600 and 600.
• D)The means cannot be determined in this design.

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Definitions:

Straight-Line Depreciation

An approach to apportion the expense of a tangible resource over its effective life period in consistent annual installments.

Incremental Cash Flow

The additional cash flow a company receives from undertaking a new project, distinct from its existing cash flow.

Lease Payments

Periodic payments made by a lessee to a lessor for the use of an asset, like equipment or real estate, over a specified lease term.

CCA Class

Categories used in Canadian tax law to determine the depreciation rate for different types of business assets.