I Were to Select a Sample of 30-Year-Olds, Another Sample

question 20

Multiple Choice

I were to select a sample of 30-year-olds, another sample of 40-year-olds, and a third sample of 50-year-olds, test or interview them once, and then test or interview them again 10 years later, this would be an example of what kind of research design?

• A) cross-sectional
• B) sequential
• C) longitudinal
• D) correlational

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Definitions:

Test-Statistic

A value calculated from sample data during a hypothesis test, used to decide whether to reject the null hypothesis.

P-Value

The probability of obtaining a test statistic at least as extreme as the one observed, under the assumption that the null hypothesis is true, used in hypothesis testing to determine statistical significance.

Degrees Of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution or test without violating any constraint.

P-Value

It calculates the probability that the observed differences between groups in a study could have happened by chance, used in hypothesis testing.