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This paper is from Session 5E: Statistics in the social sciences - Psychology, Sociology

which comes under Topic 5: Statistics education and the wider society             Full topic list

(Monday 3rd, 16:00-18:00)

Should Psychology abandon p values and teach CIs instead? Evidence-based reforms in Statistics education

Presenter

• Fiona Fidler (Australia)

Abstract

Several editorial and institutional interventions in psychology have aimed to improve statistical reporting in journals. These efforts have sought to de-emphasise statistical significance and encourage alternative analyses, especially effect sizes and confidence intervals (CIs), but the interventions to date have had short-lived and superficial impact—if any impact at all. I review some of these interventions in psychology and discuss possible reasons for lack of success. I give an inter-disciplinary context by discussing reform efforts in medicine—in which useful reform has already been achieved—and ecology. I then identify statistics education as the next major challenge for reformers, and report data on students’ understanding of CIs, and difficulties they have making appropriate interpretation of CIs. I explain the need for further evidence on which to base improved statistics education in psychology.