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- Title
Interpretation of the p value: A national survey study in academic psychologists from Spain.
- Authors
Badenes-Ribera, Laura; Frías-Navarro, Dolores; Monterde-i-Bort, Héctor; Pascual-Soler, Marcos
- Abstract
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.
- Subjects
SPAIN; PROBABILITY theory; PSYCHOLOGY teachers; COLLEGE teachers; PSYCHOLOGY education in universities &; colleges; PSYCHOLOGISTS; STATISTICS education (Higher); SURVEYS; HIGHER education; TRAINING
- Publication
Psicothema, 2015, Vol 27, Issue 3, p290
- ISSN
0214-9915
- Publication type
Article
- DOI
10.7334/psicothema2014.283