Journal
JOURNAL OF BUSINESS RESEARCH
Volume 125, Issue -, Pages 39-44Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jbusres.2020.11.069
Keywords
Apriori procedure; Excessive power; Precision; Confidence; Sample size
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Null hypothesis significance testing (NHST) has a negative impact on marketing research, leading to a recommendation from ASA to abandon it. It is important for researchers to prefer larger sample sizes in order to achieve more precise results.
Null hypothesis significance testing (NHST) has had and continues to have an adverse effect on marketing research. The most recent American Statistical Association (ASA) statement recognized NHST's invalidity and thus recommended abandoning it in 2019. Instead of revisiting the ASA' s reasoning, this research note focuses on NHST's pernicious peripheral effect on marketing research. One example of this problem is the well-known and influential recommendation against excessive power in McQuitty (2004, 2018). Instead, researchers always should prefer larger sample sizes because they always engender more precision than smaller sample sizes, ceteris paribus.
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