In Testing for the Significance of the Difference Between Two

question 1

Multiple Choice

In testing for the significance of the difference between two sample means when the sample size is small,we may assume equal population variances if

• A)sample sizes are exactly the same.
• B)sample sizes are varied.
• C)sample sizes are approximately equal.
• D)none of the above;we cannot assume equal population variance

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Definitions:

Unconditioned Stimulus (US)

A stimulus that naturally triggers a reflexive response without prior learning.

Extinction

In behavioral psychology, the gradual weakening and disappearance of a conditioned response when the conditioned stimulus is presented without the unconditioned stimulus.

Spontaneous Recovery

A phenomenon in learning where a previously extinguished response reemerges after a period without exposure to the conditioned stimulus.

Bandura's Study

Refers to research conducted by psychologist Albert Bandura, especially known for his work on social learning theory and the concept of self-efficacy.