The Main Difference Between a Correlational Study and an Experiment

question 216

Multiple Choice

The main difference between a correlational study and an experiment is that in an experiment,

• A) the participants are aware of the hypothesis being tested.
• B) all individuals receive the same treatment.
• C) the participants are observed without interference in their normal life.
• D) the investigator manipulates the independent variable.

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Definitions:

Mammary Glands

Specialized organs in mammals that produce milk to nourish newborn offspring.

Constant Internal Temperature

The maintenance of a steady body temperature independent of the environment.

Mammals

Warm-blooded vertebrates characterized by the presence of hair or fur, secretion of milk by females for the nourishment of the young, and typically the birth of live young.

One-way Air Flow

A respiratory adaptation in some animals, such as birds, allowing air to pass through lungs in a single direction for more efficient gas exchange.