How might you show that this measure of narcissism

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Reference no: EM133277825

Case: Manipulation, rule breaking, and bullying are just a few of the behavioral hallmarks of narcissism. But new research identifies another disturbing manifestation of narcissism-dangerous driving.

Psychological scientists from the Ohio State University and the University of Luxembourg wanted to see if narcissism predicted aggressive driving, which is the cause of more than half of traffic accidents in the United States alone. In three studies they assessed people who showed subclinical levels of narcissism. That is, none of the subjects had been diagnosed with a clinical narcissism, which is a personality disorder involving a need for admiration, a lack of empathy, and grandiosity. At lower levels, narcissism is a personality trait defined by varying levels of selfishness, feelings of superiority, entitlement to special treatment and inflated self-views.

In one of the studies, the scientists surveyed Luxembourgers to assess their narcissism and driving habits. The participants answered questions from the Narcissistic Personality Inventory, a set of questions used since 1988 to measure narcissism. This questionnaire had participants rate how strongly they agreed with 25 items such as: "I like to be the center of attention," or "I am an extraordinary person" on a 1-5 scale. They then addressed similar items about aggressive driving behavior: "I often swear when driving a car," or "When driving my car, I easily get angry about other drivers."

Question 1: Now, consider the Narcissism measure. What kind(s) of reliability would need to be evaluated for this measure? (Hint: there are two)

Question 2: Draw a scatterplot or describe a result that would indicate that the measure has good reliability. (Hint: There are two forms of reliability.) You might need to make a scatterplot, or you might need to describe a result. Consult your textbook for a review.

Question 3: How might you show that this measure of Narcissism has criterion validity? What data would you have to collect, and what would you expect the results to show (draw a graph)?

Question 4: How might you show that this measure has convergent and discriminant validity? Sketch a pair of graphs to show an expected outcome, if the study has good convergent and discriminant validity. Be careful of how you label your axes

Reference no: EM133277825

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