Abstract

The rationale of Null Hypothesis Significance Testing (NHST) is described, and the consequences of its hybridism are discussed. The paper presents examples published in “PSYCHOLOGY: The Journal of the HPS” refer to NHST and interpret its outcomes. We examined the 445 articles published between 1992 and 2010. We noted misuses of NHST and searched for any use of confidence intervals or error bars or use of these to support interpretation. Part of the paper focuses on the statistical-reform debate and provides detailed guidance about good statistical practices in the analysis of research data and the interpretation of findings. The proposed guide does not fall into the trap of mandating the use of particular procedures; it rather aims to support readers’ understanding of research results.

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