To Test the Null Hypothesis H₀: μ₁ = μ₂ =

question 15

Multiple Choice

To test the null hypothesis H₀: μ₁ = μ₂ = μ₃ using samples from normal populations with unknown but equal variances, we:

• A)cannot safely use ANOVA.
• B)can safely employ ANOVA.
• C)would prefer three separate t-tests.
• D)would need three-factor ANOVA.

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Definitions:

Neuro/Biological Focused

Pertains to approaches or studies that center on the biological and neurological underpinnings of behavior and mental processes.

Psychophysiological Data

Information that reflects the relationship between psychological processes and physiological responses.

EEG

Electroencephalogram, a test that measures electrical activity in the brain and is used to diagnose neurological conditions.

Polygraph

A lie detector test that measures and records several physiological indicators such as blood pressure, pulse, respiration, and skin conductivity while the subject is asked and answers a series of questions.