____ Describes a Steady Decrease in the Average Age of Menarche

question 120

Multiple Choice

____ describes a steady decrease in the average age of menarche in Western countries over the past 150 years.

• A) Secular trend
• B) Lowering trend
• C) Early onset trend
• D) Sooner trend

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Definitions:

Phobias

Irrational, intense, persistent fears of certain situations, activities, things, or people, leading to avoidance behavior.

Classical Conditioning

A learning process that occurs through associations between an environmental stimulus and a naturally occurring stimulus, famously demonstrated by Ivan Pavlov's experiments with dogs.

Operant Conditioning

A method of learning where the intensity of an action is altered by either rewards or penalties.

White Rat

Often used in laboratory experiments, these are albino rats specifically bred for research purposes.