In chase of statistically significant result. Consequences of widespread use of NHST (null hypothesis significance testing) in psychology

• Authors: Karolina Karpe
• Languages of publication: PL

Abstracts

PL

NHST (null hypothesis significance testing) is the most popular statistical paradigm in psychology. Mistakes in interpretation of its assumptions and their consequences are topic for methodological and statistical discussion for over fifty years. Article presents two problems associated with NHST that are particularly prevalent in psychology: identifying non-significant results with research failure and conducting underpowered research. They can contribute to increase in exploiting questionable research practices in order to obtain desirable, significant outcomes. Three practices: p-hacking, HARKing and selective publishing are described, along with analysis of their impact on replication crisis in psychological science.

Keywords

EN

NHST; p-hacking; HARKing; selective publishing; replication crisis; false positives

• Publisher: Biuro Upowszechniania i Promocji Nauki PAN
• Journal: Nauka
• Year: 2017
• Issue: 1

Dates

published

2017

online

2017-03-23

Contributors

author

Karolina Karpe