Stress magnitude estimation versus category estimation: nurses techniques - Evangelista, Renata A; Sant'Ana, Roberta P de Melo; Lessa, Sarita S; Sousa, Fatima Aparecida Emm Faleiros (Eighteenth Annual Meeting of the International Society for Psychophysics: in a new continent, for a new psychophysics. Fechner Day 2002, 2002)