Explain the Various Types of Observational Studies

question 107

Multiple Choice

Explain the Various Types of Observational Studies
-A researcher wanted to determine whether colon cancer was associated with eating meat. He selected a sample of 500 men with colon cancer and an equal number of men without colon cancer. The two groups were matched - in other words they were similar in terms of age, occupation, income, and exercise levels. Histories on the amount of meat consumed over the previous twenty years were obtained for all men. The total amount of meat that each man eaten in the previous twenty years was estimated. The meat consumption was compared for the two groups.

• A) retrospective; Individuals are asked to look back in time
• B) cross-sectional; Information is collected at a specific point in time.
• C) cohort; Individuals are observed over a long period of time.

---

Definitions:

Airport Kiosk

An automated terminal located at airports that allows passengers to perform tasks such as check-in, ticket printing, and information access.

GST

GST stands for Goods and Services Tax, which is a value-added tax levied on most goods and services sold for domestic consumption.

Canada Customs

The federal agency responsible for regulating goods that enter or leave Canada, ensuring compliance with customs regulations.

Tokyo Stock Exchange

The primary stock exchange in Japan, one of the largest in the world by market capitalization, where stocks of publicly held companies are issued and traded.