Eric Is Conducting a Study in Which He Compares Narcissism

question 79

Multiple Choice

Eric is conducting a study in which he compares narcissism levels in 20-, 40-, and 60-year-olds. He finds that younger people are more narcissistic, and concludes that narcissism weakens as a person ages. A colleague points out to him that perhaps the younger people are more narcissistic not because of their age, but because they were surrounded by social media as they grew up, and that exposure to things like Facebook might be what promotes narcissism rather than youth. The older participants were not exposed to Facebook in their early years. Eric's colleague is raising the possibility of a(n) ____ effect.

• A) placebo
• B) experimental
• C) cohort
• D) longitudinal

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Definitions:

Sample Size

The number of observations or data points that are selected from a population for the purposes of statistical analysis.

Sample Size

The number of observations or data points collected in a sample for the purpose of analysis.

Population Standard Deviation

A measure of the variation or dispersion of all values in an entire population.

Standard Error

A statistical measure that represents the accuracy with which a sample distribution represents a population by quantifying the variability of the mean.