Would an Observational Study or an Experiment Be More Appropriate

question 56

Essay

Would an observational study or an experiment be more appropriate to investigate the effects on humans of a substance known to be toxic? Explain.

---

Definitions:

Preoperational

A stage in Jean Piaget’s theory of cognitive development where children aged 2 to 7 years old are able to use symbols and language but do not yet understand concrete logic.

Concrete Operational

A stage in Piaget's theory of cognitive development (typically age 7-12) where children gain the ability to think logically about concrete (physical and visible) events.

Ejaculation

Ejaculation is the discharge of semen from the male reproductive tract as a result of sexual arousal.

Menstruation

The monthly shedding of the uterine lining in females, accompanied by bleeding, marking a key component of the menstrual cycle.