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Critical appraisal of cross sectional study example

11 questions to help you make sense of descriptive/cross-sectional studies 2025

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The document provides an appraisal tool consisting of 11 questions designed to help evaluate descriptive/cross-sectional studies. It emphasizes three main issues: the validity of results, the nature of the results, and their local applicability. The questions guide users in assessing study focus, recruitment methods, measurement accuracy, data collection, participant adequacy, result presentation, analysis rigor, clarity of findings, and research value.

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What are the strengths of a descriptive cross-sectional study?

They are often used to measure the prevalence of health outcomes, understand determinants of health, and describe features of a population. Unlike other types of observational studies, cross-sectional studies do not follow individuals up over time. They are usually inexpensive and easy to conduct.

What is an example of cross-sectional research?

Surveillance of changes in smoking habits or of other behavioral risk factors are sequential cross-sectional studies. The US National Health and Nutrition Examination Survey (NHANES) is one such example Similarly, surveillance of long lasting diseases such as AIDS is cross-sectional.

What is an example of a cross section?

For example, if we want to measure current obesity levels in a population, we could draw a sample of 1,000 people randomly from that population (also known as a cross section of that population), measure their weight and height, and calculate what percentage of that sample is categorized as obese.

What makes a good cross-sectional study?

The main strength of cross-sectional studies is that they are relatively quick and inexpensive to conduct. They are the best way to determine the prevalence and can study the associations of multiple exposures and outcomes.

What is an example of a cross-sectional research question?

Researchers might use a cross-sectional study to understand why women older than 40 are more prone to a certain disease. Another example could be to determine how many people in a community smoke tobacco.

What is an example of a descriptive cross-sectional study?

Descriptive cross-sectional studies: These characterize the prevalence of one or more outcomes in a particular population, e.g., examining the prevalence of Alzheimers disease in a target population.

What is a cross-sectional question?

Characteristics of Cross-Sectional Survey Design Surveys are conducted with the same set of variables at a single point in time. Researchers can look at various characteristics at once (age, gender, race, etc). Theyre often used to look at the defining characteristics of a population at a given point in time.

11 questions to help you make sense of descriptive/cross-sectional studies 2025

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