What Is a Case-Control Design

question 11

Multiple Choice

What is a case-control design?

• A) A study in which the investigator forms groups of individuals who vary on the characteristic of interest and studies current or past features of that group
• B) A study in which the investigator forms groups of individuals and manipulates an independent variable between those groups to measure its effects
• C) A study in which the investigator examines one group of individuals in depth, over time
• D) A study in which the investigator examines the role of group membership in the type of treatment individuals chose to engage in

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Definitions:

Teratogens

Substances or agents that can cause congenital abnormalities or birth defects in a developing fetus when the mother is exposed during pregnancy.

Blastocyst

An early stage in the development of an embryo, consisting of a hollow sphere of cells that implants into the wall of the uterus.

Placenta

An organ that develops in the uterus during pregnancy, providing oxygen and nutrients to the growing baby and removing waste products, functioning as a critical support system for fetal development.

Expectant Mother

A woman who is pregnant and awaiting the birth of her child.