Which of the Following Participant Samples Would Most Likely Generalize

question 20

Multiple Choice

Which of the following participant samples would most likely generalize to the population of teenage American girls?

• A)75 girls aged 13-18, randomly sampled from multiple sites across the country
• B)All 500 of the girls at a single high school
• C)200 girls recruited from Girl Scout troops across the country
• D)50 after-school female volunteers who were available to participate in the research easily

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Definitions:

Type II Error

A Type II Error occurs when a statistical test fails to reject a false null hypothesis, falsely indicating no effect or difference when one exists.

Level of Significance

The probability threshold below which the null hypothesis is rejected in hypothesis testing.

Probability

A mathematical measurement of the likelihood of an event occurring, expressed as a number between 0 and 1.

Level of Significance

The criterion used for rejecting the null hypothesis; often denoted by alpha.