In a Longitudinal Design Age Is Treated as a __________

question 19

Multiple Choice

In a longitudinal design age is treated as a __________ variable, but age is treated as a ____________ variable in a cross-sectional design.

• A) within-subjects / within- and between-subjects
• B) within- and between-subjects / between-subjects
• C) within-subjects / between-subjects
• D) between-subjects / within-subjects
• (e) between-subjects / between-subjects

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Definitions:

Confidence Interval

An interval estimate of a population parameter that provides a range of values which is likely to include the parameter of interest.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, describing how much individual data points differ from the mean.

Sample Mean

The average of a set of numerical values drawn from a sample of a population, used as an estimate of the population mean.

Margin Of Error

The amount of error that can be tolerated in the results of a poll or survey, indicating the potential deviation from the true population parameter.