Replication—an important, uncommon, and misunderstood practice—is gaining
appreciation in psychology. Achieving replicability is important for making research …

The credibility revolution (sometimes referred to as the “replicability crisis”) in psychology
has brought about many changes in the standards by which psychological science is …

Most theories and hypotheses in psychology are verbal in nature, yet their evaluation
overwhelmingly relies on inferential statistical procedures. The validity of the move from …

Many philosophers of science and methodologists have argued that the ability to repeat
studies and obtain similar results is an essential component of science. A finding is elevated …

Good self-control has been linked to adaptive outcomes such as better health, cohesive
personal relationships, success in the workplace and at school, and less susceptibility to …

Can recent failures to replicate psychological research be explained by typical magnitudes
of statistical power, bias or heterogeneity? A large survey of 12,065 estimated effect sizes …

One of the pathways by which the scientific community confirms the validity of a new
scientific discovery is by repeating the research that produced it. When a scientific effort fails …

In recent years, psychology has wrestled with the broader implications of disappointing rates
of replication of previously demonstrated effects. This article proposes that many aspects of …

A typical empirical study involves choosing a sample, a research design, and an analysis
path. Variation in such choices across studies leads to heterogeneity in results that introduce …

Repeated investigations of the same phenomenon typically yield effect sizes that vary more
than one would expect from sampling error alone. Such variation is even found in exact …