Editorial.

This article presents information on 'Journal of Occupational and Organizational Psychology' as of March 2004. The journal publishes empirical and conceptual papers which aim to increase understanding of people and organizations at work. Its domain is broad, covering industrial, organizational, engineering, vocational and personnel psychology, as well as behavioural and cognitive aspects of industrial relations, ergonomics, human factors and industrial sociology. The editorial team reminds readers that research based on student samples is not usually acceptable, unless students are the most relevant population with which to test the research question/s. However, a little further comment and qualification concerning the nature of the data is needed in order to clarify the team's stance, and also to draw attention to some exceptions. One particular concern here is to discourage studies where causal hypotheses in well-researched areas are tested using entirely self-report survey data from a sample numbering perhaps in the low hundreds, the composition of which is characterized more by availability than special relevance to the research question/s. So, if a study used only cross-sectional self-report data but included some kind of experimental manipulation, other things being equal it could be publishable. A more general, and very important issue concerns the distinction between quantitative and qualitative data. The journal explicitly encourages papers based on the latter, and has done so for quite some time.