Standard reports paint a much rosier picture of the research landscape than may be warranted. In this analysis, the first hypothesis of standard articles reported was supported by the data 96% of the time, while that rate was only 44% in registered reports.
Comparing Meta-analyses and Preregistered Multiple-laboratory Replication Projects
Kvarven, Strømland and Johannesson compare meta-analyses to multiple-laboratory replication projects and find that meta-analyses overestimate effect sizes by a factor of almost three. Commonly used methods of adjusting for publication bias do not substantively improve results.
The Value of Preregistration for Psychological Science: A Conceptual Analysis
The question whether the practice of preregistration is valuable depends on your philosophy of science. Daniel Lakens provides a conceptual analysis of the value of preregistration for psychological science from an error statistical philosophy.
Making decisions before conducting analyses requires practice. Respecting both what was planned and what actually happened requires good judgment and humility in making claims. With the accelerating adoption of preregistration, we now face the challenge of figuring out how to use this methodology to its fullest potential.