Which of the Following Statements Is False

question 1

Multiple Choice

Which of the following statements is false?

• A) Physical activity has most commonly been measured using questionnaires in epidemiology
• B) Questionnaires systematically underestimate MVPA compared with accelerometers
• C) Inaccuracy of questionnaire-based measures of physical activity may attenuate relationships between physical activity and health-related outcomes
• D) Accelerometers can measure dynamic accelerations and body posture in real time

---

Definitions:

Population Standard Deviation

A measure of the dispersion or spread of a set of data values in a population, indicating how much individuals within this population vary from the population mean.

Interval Estimate

An estimate of a population parameter that provides a range of values believed to contain the parameter with a certain degree of confidence.

Sample Standard Deviation

A measure of the dispersion or variability of a set of data points in a sample.

Point Estimate

A single value estimation derived from a sample that serves as the best guess of a population parameter.