The Department of Psychology at the University of Nijmegen had 9 different areas of research and teaching. Each of the 39 psychologists working in the department ranked all 9 areas in order of relevance for their work.
A data frame with the following 9 areas:
SOC: Social Psychology
EDU: Educational and Developmental Psychology
CLI: Clinical Psychology
MAT: Mathematical Psychology and Psychological Statistics
EXP: Experimental Psychology
CUL: Cultural Psychology and Psychology of Religion
IND: Industrial Psychology
TST: Test Construction and Validation
PHY: Physiological and Animal Psychology
Roskam, E (1968). Metric Analysis of Ordinal Data in Psychology. PhD thesis, University of Leiden.