A Trend Study Has a Repeated Cross-Sectional Design

question 1

True/False

A trend study has a repeated cross-sectional design.

---

Definitions:

Vitamin Supplements

Products containing vitamins that are taken to supplement the diet and ensure adequate nutrient intake.

Caffeine

A stimulant to the central nervous system that is the most widely consumed psychoactive substance in the world, commonly found in coffee, tea, soft drinks, and chocolate.

Melatonin

A hormone produced by the pineal gland in the brain, responsible for regulating sleep and wakefulness patterns.

Insomnia

A persistent disorder that impairs the ability to fall asleep or maintain sleep, affecting one's overall health and quality of life.