A New Test Determines Your Score by Dividing Your Telephone

question 101

Multiple Choice

A new test determines your score by dividing your telephone number into your social security number, and then multiplying by 100. This test probably has

• A) high reliability and high validity.
• B) high reliability and low validity.
• C) low reliability and high validity.
• D) low reliability and low validity.

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Definitions:

Statistic

A statistic is a single measure, reported as a number, used to summarize a sample and to estimate the corresponding value in the larger population from which the sample was drawn.

Parameter

A parameter is a numerical characteristic of a population, such as its mean or standard deviation, as opposed to a statistic of a sample.

Central Tendency

A statistical measure that identifies a single value as representative of an entire distribution of data.

Outliers

Observations in a dataset that are significantly distant from the other observations, potentially indicating a measurement error or a different population.