The Replication Crisis in Psychology (2015 Open Science Collaboration)

The Replication Crisis in Psychology exposed a systemic failure when the 2015 Open Science Collaboration attempted to reproduce 100 landmark studies in health psychology and behavioral medicine. Only 36% produced the same results, undermining decades of widely cited work on stress, willpower, priming, and therapeutic interventions. The crisis revealed that influential findings, such as those linking ego depletion to decision-making or social priming to health behaviors, rested on far weaker foundations than previously believed, costing the field an estimated $28 billion annually in wasted research.