Key points are not available for this paper at this time.
D. R. Cox, R. Fitzpatrick, A. E. Fletcher, S. M. Gore, D. J. Spiegelhalter, D. R. Jones, Quality-of-Life Assessment: Can We Keep It Simple?, Journal of the Royal Statistical Society. Series A (Statistics in Society), Vol. 155, No. 3 (1992), pp. 353-393
Cox et al. (Wed,) studied this question.