To Differentiate Experiments Involving Individual Differences (Subject)variables and Those Involving

question 7

Multiple Choice

To differentiate experiments involving individual differences (subject) variables and those involving manipulated independent variables,those experiments involving groups selected based on individual differences (subject) variables are called

• A) selected subjects designs.
• B) matched groups designs.
• C) random groups designs.
• D) natural groups designs.

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Definitions:

Confidence Interval

A range of values within which there is a specified probability that the true parameter lies.

Sample Variance

A statistic used to estimate the variance of a population, calculated from a sample of data from that population.

Hypothesis Test

A procedure for testing a hypothesis about a parameter in a population, using data measured in a sample.

Population Variance

A statistical measure that calculates the variance of the entire population, representing the average of the squared differences from the population mean.