par Holender, Daniel 
Référence Psychologie du travail et des organisations, 14, page (9-42)
Publication Publié, 2008
Référence Psychologie du travail et des organisations, 14, page (9-42)
Publication Publié, 2008
Article révisé par les pairs
| Résumé : | The use of confidence intervals instead of significance tests is strongly recommended by the fifth edition of the manual of the American Psychological Association (2001). This possibility as well as other improvements in statistical practice are discussed in the framework of the major theoretical options subtending statistical inference and the way they have been applied in psychology for about 50 years. First, the suggestion of a complete ban on statistical testing is examined and rejected. Next, a procedure consisting in measuring the fit of two competing models based on the likelihood ratio is judged interesting and commendable. Finally, the superiority of an approach based on confidence intervals instead of significance tests is assessed and illustrated by its application to an experimental study aiming to demonstrate the absence instead of the presence of an effect of the independent variable. |
