Professor Jonas Studies Aggression

question 25

Multiple Choice

Professor Jonas studies aggression.She sets up an experiment and makes her best guess as to how the results will come out.This best illustrates psychology's central goal of

• A) explanation.
• B) prediction.
• C) description.
• D) explanation
• E) criticism

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Definitions:

National Average

The arithmetic mean or median of certain measurements or statistics considered across a whole nation.

One-sample T-test

A statistical test used to compare the mean value of a sample to a known value (usually the population mean) to see if there are significant differences.

Null Hypothesis

A statistical hypothesis that assumes no significant difference or effect exists within a set of given observations.

P-value

A measure in statistics that helps to determine the significance of results derived from a hypothesis test.