Clinical study design, explained
How studies are built.
Five designs. Clear diagrams. No background needed.
05
Designs
04
Methods
15
Terms
- Randomize
- Blind
- Control
- Placebo
- Cohort
- Crossover
- Snapshot
- Endpoint


Five designs to know
Tap a design.
studydesignstudio.com/rct
Randomized Controlled Trials
Volunteers are assigned to groups by chance, so the groups start out alike and differences at the end are easier to interpret.
- Random assignment to groups
- A comparison or control group
- Often paired with blinding
Comparison chart
How they stack up.
- Randomized5/5
- Cohort3/5
- Case-control2/5
- Cross-sectional1/5
How it works
Three steps.
- 01
Pick a design
Start with one of five study types.
- 02
Follow the diagram
See how people move through it.
- 03
Compare
Check what each design can and cannot show.

FAQ
Quick answers.
Do I need a science background?
No. Every guide starts from zero.
Is this a research program?
No. Study Design Studio explains how studies work. It does not run studies or enroll anyone.
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No. They are optional, and every page is free to read without them.
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