Based on the Results of a Representative Sample of Students

question 25

Multiple Choice

Based on the results of a representative sample of students at his high school,Jack claims that "the majority of high school students today believe premarital sex is wrong." Jack may be "speaking beyond his data" because the results he obtained may not easily translate to the attitudes of other high school students across the United States.This concern addresses the study's:

• A) validity.
• B) generalizability.
• C) reliability.
• D) reflexivity.

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Definitions:

Margin of error

An expression of the amount of random sampling error in a survey's results.

Population variance

A measure of the dispersion of all data points within a population, squared from the mean of the population.

Confidence interval

A gamut of numbers, produced from sample statistics, believed to enfold the covert value of a population parameter.

Sample standard deviation

A statistic that measures the dispersion of a dataset relative to its mean and is calculated as the square root of the variance.