A Large Research Trial Using a _____ Supplement Was Stopped

question 62

Multiple Choice

A large research trial using a _____ supplement was stopped early due to evidence of possible harm.

• A) vitamin C
• B) vitamin D
• C) beta-carotene
• D) calcium
• E) magnesium

---

Definitions:

Self-evaluations

The process through which individuals assess and analyze their own performance, abilities, and qualities.

Cross-sectional Methods

Research methods that analyze data from a population, or a representative subset, at a specific point in time.

Longitudinal Studies

Research methods that involve repeated observations of the same variables (e.g., people) over short or long periods of time to detect changes and developments.

Temperamental Differences

Variations among individuals in their emotional responses, levels of activity, and attention span, often considered innate rather than learned.