Science Library
Study Designs
Experimental design logic for randomization, blinding, repeated measures, order, and washout.
Method focus
These are the checks that make the page family useful when a scientist is choosing a method, endpoint, or analysis path.
when to use
analysis implications
carryover risk
Guides in this family
Use these guides to connect the scientific question to a measurable endpoint, defensible design choice, and reporting language.
3 guides
Study design
Repeated-measures designs
Repeated-measures designs collect endpoints from the same subject across time or conditions.
2 checked references5 reporting requirements3 linked surfaces
Open guide
Study design
Randomization
Randomization assigns experimental units to groups or conditions using a planned rule that reduces allocation bias.
2 checked references5 reporting requirements3 linked surfaces
Open guide
Study design
Blinding
Blinding prevents knowledge of group, condition, or expected outcome from influencing handling, scoring, analysis, or interpretation.
2 checked references5 reporting requirements3 linked surfaces
Open guide
