Psychology is currently facing a multilayered crisis stemming from the fact that the results of many psychological studies cannot be replicated (replication crisis), that psychological research has neglected cross-cultural and cross-temporal …
We have created a curated scientific resource navigator called ARIADNE that will guide researchers in the field of life sciences, especially those at the beginning of their career, through the process of conducting a transparent and reproducible …
Sample correlations converge to the population value with increasing sample size, but the estimates are often inaccurate in small samples. In this report we use Monte-Carlo simulations to determine the critical sample size from which on the magnitude …
Several researchers recently outlined unacknowledged costs of open science practices, arguing these costs may outweigh benefits and stifle discovery of novel findings. We scrutinize these researchers’ (a) statistical concern that heightened …
Statistical power analysis provides the conventional approach to assess error rates when designing a research study. However, power analysis is flawed in that a narrow emphasis on statistical significance is placed as the primary focus of study …
Reprodutibilidade e replicabilidade de estudos científicos.
Randomização, cegamento, planejamento amostral e pré-registro de projeto. Diferença entre estudos exploratórios e confirmatórios, P hacking, HARKing e double dipping. Práticas de …
The editors of the Journal of Advanced Academics comment on Makel (2014). The replicability crisis in psychology is summarized in terms of three focal issues: the “file drawer” problem, lack of replication studies, and the null hypothesis …
Protzko et al.1 describe a project in which internal tests of pilot-tested hypotheses and independent replications embraced “rigour-enhancing practices” such as confirmatory tests, large sample sizes, preregistration and methodological transparency. …
The verity of results about a psychological construct hinges on the validity of its measurement, making construct validation a fundamental methodology to the scientific process. We reviewed a representative sample of articles published in the Journal …