Types of Studies

<p>They ensure balance of factors that could affect disease risk through random allocation (B)</p> Signup and view all the answers

<p>Ecological Study (A)</p> Signup and view all the answers

<p>Risk factors over time in individuals without the disease (C)</p> Signup and view all the answers

<p>Determining risk factors associated with a disease outcome (C)</p> Signup and view all the answers

<p>Investigators do not assign exposures and observe outcomes (A)</p> Signup and view all the answers

A study that measures exposure and outcome status at a single point in time, often using surveys, to assess the prevalence and distribution of disease.

A study that compares disease frequencies across different groups or time periods in populations to look for population-level patterns of disease.

Compares individuals with a disease (cases) to individuals without the disease (controls) to identify potential exposures related to the disease.

Tracks a group of individuals without a disease for a period, measuring risk factors and following their progression to see who develops the disease.

A prospective cohort study where participants are randomly assigned to either an exposure or a control group to determine the effect of exposure on the outcome, usually a disease.

Studies where researchers observe and record data without intervening or assigning exposures to participants. Examples include cross-sectional, ecological, case-control, and cohort studies.

Study designs where researchers manipulate exposure status of participants. A Randomized Control Trial is an example.

Each study type has advantages and disadvantages in terms of identifying cause-effect relationships and generalizability of results. This is important to consider when interpreting research findings.