Ordinal scale and statistics in medical research.Br Med J (Clin Res Ed) 1986; 292 doi: http://dx.doi.org/10.1136/bmj.292.6519.537 (Published 22 February 1986) Cite this as: Br Med J (Clin Res Ed) 1986;292:537
- M Forrest,
- B Andersen
A survey of the 1982 editions of 12 medical journals showed that in at least 70% of 175 papers employing ordinal measurement scales, statistical methods were used, which do, in fact, assume a more refined measurement scale. Non-parametric methods suited for analysis of ordinal data are listed.