When Both the Researchers and the Participants Do Not Know

question 143

Multiple Choice

When both the researchers and the participants do not know who is in the experimental group and do not know who is in the control group,this type of study is known as

• A) placebo controlled.
• B) quasi-experimental.
• C) unwise.
• D) double blind.

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Definitions:

Forced Inhalation

An involuntary or voluntary act of taking air into the lungs through the use of respiratory muscles more forcefully than in normal breathing.

External Intercostal Muscles

Muscles located between the ribs that expand the chest cavity for inhalation by elevating the ribs.

Inhalation

The act of taking air into the lungs through the nose or mouth, essential for oxygenating the blood and removing carbon dioxide.

Respiratory System

The network of organs and tissues that help you breathe, including the lungs, airways, and muscles.