A Researcher Is Conducting an Interrupted Time-Series Study and Is

question 144

Multiple Choice

A researcher is conducting an interrupted time-series study and is worried that changes in behavior after treatment might be due to some important event other than the treatment. This researcher is worried about which threat to internal validity?

• A) Maturation
• B) Diffusion of treatment
• C) History
• D) Selection

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Definitions:

Medical Record

The comprehensive documentation of a patient's medical history, treatment plans, diagnoses, medications, and other health information.

Oxygen Saturation

The fraction of oxygen-saturated hemoglobin relative to total hemoglobin in the blood, an indicator of oxygen levels.

Shortness of Breath

A condition where an individual experiences a feeling of not being able to breathe well enough, also known as dyspnea.

Vital Signs

The essential measurements of body function, including temperature, pulse, respiration rate, and blood pressure, indicating the state of a patient's essential bodily functions.