Historically,the First Most Widely Used Form of Birth Control Used

question 51

Multiple Choice

Historically,the first most widely used form of birth control used by women was ____________.

• A)the pill
• B)spermicidal foams and jellies
• C)the diaphragm
• D)the IUD

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Definitions:

Retrospective Study

A research design that looks back in time to analyze data from past records to investigate a particular outcome or phenomenon.

Prospective Study

A research design that follows participants forward in time to examine the relationship between specific exposures and outcomes.

Clinical Trial

A research design that tests the effects of medical treatment. Many clinical trials are randomized controlled trials that allow researchers to determine whether a new treatment is or is not effective.

Ex Post Facto Study

A research design that examines the effects of an independent variable on a dependent variable, where the study is conducted after the events have occurred.