Formative Evaluation In Document Design: Validity Of The Plus-minus Method For the Protesting Of Pub - Professional Communication Conference, 1998. IPCC 98. Proceedings. 1998 IEEE International

rovides empirical data on the validity oj'the plus-minus method, fbr the pretes ling rniation brochures. Six brochures were tested using the plus-minzrs method, and ? basis oj'the pretest results. A series oj'experinients comparing original and ins ($the brochures showed that the reader problems detected were valuable ones: et readers appreciation ofthe brochures and the t$ftktivene.ss of' the hrochure.s owed a sign!ficant iniproventent. Another study in which experts judged lhe f'the problems detected confirmed these,findings, but also raised doubts about the :h individual revisers can reliablyjude the importance of reader problems.