Related Experiment Video
Updated: Jan 28, 2026

Atom Probe Tomography Studies on the CuIn,GaSe2 Grain Boundaries
Published on: April 22, 2013
Study designs: Part 2 - Descriptive studies
Rakesh Aggarwal1, Priya Ranganathan2
1Department of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
Abstract:
One of the first steps in planning a research study is the choice of study design. The available study designs are divided broadly into two types - observational and interventional. Of the various observational study designs, the descriptive design is the simplest. It allows the researcher to study and describe the distribution of one or more variables, without regard to any causal or other hypotheses. This article discusses the subtypes of descriptive study design, and their strengths and limitations.
Related Concept Videos
Study Design in Statistics
Does aspirin reduce the risk of heart attacks? Is one brand of fertilizer more effective at growing roses than another? Is fatigue as dangerous to a driver as the influence of alcohol? Questions like these are answered using randomized experiments with proper...
Study Designs in Epidemiology
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and...
Bioavailability Study Design: Single Versus Multiple Dose Studies
Group Design
Bioequivalence Experimental Study Designs: Completely Randomized and Randomized Block Designs
Bioavailability Study Design: Absolute Versus Relative Bioavailability

