The Reproducibility Project: Psychology

Record summary

The Open Science Collaboration coordinated replications of 100 psychology studies and found that many effects were smaller or less statistically persuasive than in the original reports. The project was not designed specifically as a psi investigation, but it provides a major conventional framework for evaluating extraordinary cognition claims, altered-state findings and small laboratory effects. Its comparison value lies in preregistration, independent teams and effect-size assessment. Researchers should inspect the individual replication protocols rather than relying only on the project’s headline conclusion.