Method evidence record

Pragmatic Fractional Factorial Experiment

A pragmatic fractional factorial experiment applies fractional factorial design principles to real-world or clinical intervention research, enabling simultaneous evaluation of multiple intervention components in a resource-efficient fraction of the full factorial runs. Popularised through the Multiphase Optimization Strategy (MOST), it identifies which components of a multi-component intervention contribute meaningfully to outcomes before a confirmatory randomized trial is conducted.

Evidence statusSources recorded, not reviewedBibliographic sources are present. Claim-level evidence review has not been performed.