If We Are Interested in Testing Whether the Mean of Items

question 170

Multiple Choice

If we are interested in testing whether the mean of items in population 1 is larger than the mean of items in population 2, the

• A) null hypothesis should state μ1 - μ2 < 0
• B) null hypothesis should state μ1 - μ2 > 0
• C) alternative hypothesis should state μ1 - μ2 > 0
• D) alternative hypothesis should state μ1 - μ2 < 0

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Definitions:

Psychological Research

The scientific study of the mind and behavior through experiments, observation, and analysis to understand psychological phenomena.

Structuralism

An approach in psychology that analyzes the basic elements of thoughts and sensations to understand the structure of the mind.

E. B. Titchener

A psychologist known for developing structuralism, an early school of psychology that aimed to understand the structure of the mind through introspection.

Wilhelm Wundt

A German physiologist and psychologist who is considered one of the founders of modern psychology; he established the first psychology laboratory in Leipzig, Germany.