摘要
从本世纪五十年代Tanner和Swets把信号检测论引入心理学的研究以来,它已经成为研究心理物理学的一个有力工具。近年来利用信号检测论研究心理学问题的文章更是屡见不鲜。信号检测论对心理物理学的最大贡献是它可以把被试的辨别力和他的反应倾向性分开,而以古典心理物理法测得的感觉阈限则是二者不可分割的混合物。
In order to compare the merits of SDT and classical psychophysical methods twoexperiments on weight discrimination were carried out on subjects of different ages,sexes and occupations. Both SDT and the method of constant stimuli were used. Ithas been shown that when the subject’s response bias is not influenced by the changeof experimental conditions, the measurement of sensitivity by the method of constantstimuli is just as efficient as that by SDT. But when some non-sensory factors havean effect on the subject’s response bias, the measurement of sensitivity by SDT is morereliable. The authors hold that although SDT has been considered a powerful tool tomeasure sensitivity, the clasaical psychophysical methods are still useful under certainappropriate conditions. They are indispensable methods in sensitivity studies, and can-not be replaced by SDT.
出处
《心理学报》
1979年第3期331-335,共5页
Acta Psychologica Sinica
