Why Do Tribal Africans in Middle Adulthood Show Less Decline

question 91

Multiple Choice

Why do tribal Africans in middle adulthood show less decline in hearing than people in developed countries do?

• A)They are exposed to less noise in their daily lives.
• B)They must make loud noises to keep away predators, so they are used to loud noise.
• C)They are genetically better at hearing.
• D)Their diets have been shown to support hearing.

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Definitions:

Ecological Validity

The extent to which behavior studied in one environment (such as a psychological test) is characteristic of behavior exhibited by the same person in a range of other environments.

Research Design

The overall plan that describes how a study is put together; it is developed before conducting research.

Cohort Differences

Variations in characteristics or experiences between different groups of people typically born and living during the same period.

Cross-Sectional

A type of study or analysis that examines a population or a specific outcome at a single point in time.