文章基本信息

标题：INTERPRETATION OF THE P VALUE: A NATIONAL SURVEY STUDY IN ACADEMIC PSYCHOLOGISTS FROM SPAIN
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作者：Laura Badenes-Ribera ; Dolores Frías-Navarro ; Héctor Monterde-i-Bort 等
期刊名称：Psicothema
印刷版ISSN：0214-9915
电子版ISSN：1886-144X
出版年度：2015
卷号：27
期号：3
页码：290-295
DOI：10.7334/psicothema2014.283
出版社：Cologio Oficial de Psicólogos del Principado
摘要：Background: Incorrect interpretations of p values affect professionals’ decisions and jeopardize the quality of psychological interventions and the accumulation of valid scientific knowledge. This study analyzes the errors made by Spanish academic psychologists in interpreting p values. Method : We surveyed academic psychologists about their interpretations of p values. The sample is composed of 418 academic psychologists from Spanish public universities. The mean number of years working as a university professor is 14.16 (SD = 9.39). Results : Our findings suggest that many academic psychologists do not know how to correctly interpret p values. The inverse probability fallacy presents the greatest comprehension problems. Methodology instructors also interpret the significance of the p value erroneously. Conclusions : These results highlight the importance of the statistical re-education of professors.
关键词：Interpretation; p value; signifi cance testing; statistical inference.