@article{802439, recid = {802439}, author = {Cliff, Norman, and Keats, J. A.}, title = {Ordinal measurement in the behavioral sciences [electronic resource] /}, publisher = {Lawrence Erlbaum Associates,}, address = {Mahwah, N.J. :}, pages = {x, 230 p. :}, year = {2003}, url = {http://library.usi.edu/record/802439}, }