In medical research and social science, a cross-sectional study (also known as a cross-sectional analysis, transverse study, prevalence study) is a type of observational study that analyzes data from a population, or a representative subset, at a specific point in time—that is, cross-sectional data.. In economics, cross-sectional studies typically involve the use of cross-sectional Cross-Sectional Study. Cross-sectional studies are a type of descriptive epidemiologic study in which the exposure and disease status of the population are determined at a given point. Cross-sectional research is used to examine one variable in different groups that are similar in all other characteristics. Learn more about cross-sectional research in this lesson and test your As a member, you’ll also get unlimited access to over 75,000 lessons in math, English, science, history, and more. Plus, get practice tests, quizzes, and personalized coaching to help you succeed. Cross-sectional data, or a cross section of a study population, in statistics and econometrics is a type of data collected by observing many subjects (such as individuals, firms, countries, or regions) at the same point of time, or without regard to differences in time. Analysis of cross-sectional data usually consists of comparing the differences among the subjects. A cross-sectional study involves looking at people who differ on one key characteristic at one specific point in time. The data is collected at the same time from people who are similar in other characteristics but different in a key factor of interest such as age, income levels, or geographic location. .
Lecture Objectives 1. Understand the structure of the cross-sectional study design, 2. Understand the advantages and disadvantages of this design, Sample size calculation in cross-sectional studies. I often see people being a bit anxious when it comes to sample size calculations: I recently had a client having this problem when setting up a cross-sectional study. The burden of scabies is greater in tropical regions, especially in children, adolescents, and elderly people. As a worldwide epidemiological assessment, GBD 2015 provides broad and frequently updated measures of scabies burden in terms of skin effects. These global data might help guide research protocols and prioritisation efforts and focus scabies treatment and control measures. In many cases, the use of cross-sectional desing refers to the researcher decsion based on SHORTAGE of TIME. It is well known that longitudinal design is stronger in establish changes over time .