Which of the Following Observations May Be Most Easily Explained

question 68

Multiple Choice

Which of the following observations may be most easily explained as being due to a difference in cohorts?

• A) Today's 60-year-olds are approaching the age of "ego integrity vs. despair."
• B) Today's 60-year-olds know more about the Vietnam War than do today's 20-year-olds.
• C) Today's 60-year-olds know more about Social Security than they did 20 years ago.
• D) Today's 60-year-olds tend to have different attitudes from one another, depending on which part of the country they grew up in.

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Definitions:

Ratio

A measure that compares two quantities by division.

Difference

The quantitative discrepancy or deviation between two values or sets of data.

Two-tail Test

A statistical test that considers both the directions of a possible effect, testing for the possibility of positive or negative deviations from the null hypothesis.

Sample Variances

A measure of the dispersion or variability within a sample data set, which indicates how much the sample elements differ from the sample mean.