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

question 54

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 dependent variable in this experiment is

• A)participants' level of arousal.
• B)participants' personality: introversion or extraversion.
• C)whether people agreed to participate in the experiment.
• D)scores on the quantitative portion of the GRE test.

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Definitions:

Holmes-Rahe Readjustment Scale

A tool used to measure the stress level of individuals by assigning points for various life events that might require personal adjustment.

Life Change Units

Measures used in stress research to assess the level of life stress a person is experiencing based on recent life changes.

Stress-related Illness

Stress-related illness refers to physical or mental health issues that are either caused by stress or significantly worsened by it.

Refreezing Step

The final stage in the Lewin's change management model, where new behaviors or changes are solidified into the organization's culture and practices.