Impact of positively – versus negatively – worded items on the factor structure of three psychological measures: W-BQ22, W-BQ12 and SF-36.

Speight J, Barendse S and Bradley C

01/11/1999

Quality of Life Research, 8 (7) 576.

Abstract presented to the 6th annual conference of ISOQOL, Barcelona, Spain, 3-6 November 1999