The Null Hypothesis That Is Appropriate to State with a Directional

question 4

Multiple Choice

The null hypothesis that is appropriate to state with a directional research hypothesis asserts that

• A) the independent variable has no effect.
• B) chance alone is responsible for the observed differences between conditions.
• C) the independent variable does not have an effect in the direction predicted by the research hypothesis (H1).
• D) b and c

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Definitions:

Mating Patterns

The behaviors and strategies organisms use to find, select, and engage in reproductive partnerships.

Masters and Johnson

Research team that conducted pioneering research into the nature of human sexual response and the diagnosis and treatment of sexual disorders.

Refractory Period

The period immediately following stimulation during which a nerve or muscle is unresponsive to further stimulation.

Sexual Response Cycle

A sequence of physical and emotional phases that occur when an individual becomes sexually aroused and participates in sexually stimulating activities, including phases such as arousal, plateau, orgasm, and resolution.