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COMPUTER-AIDED ESTIMATION OF PSYCHOPHYSICAL THRESHOLDS BY WETHERILL TRACKING
被引:14
作者:
CORWIN, TR
[1
]
KINTZ, RT
[1
]
BEATY, WJ
[1
]
机构:
[1] BRAG MICROCOMP INC,ROCHESTER,NY 14607
来源:
BEHAVIOR RESEARCH METHODS & INSTRUMENTATION
|
1979年
/
11卷
/
05期
关键词:
D O I:
10.3758/BF03201370
中图分类号:
B84 [心理学];
学科分类号:
04 ;
0402 ;
摘要:
We describe a microcomputer implementation of an efficient procedure to obtain psycho-physical thresholds at any of three response-probability levels, by Wetherill tracking. The procedure yields reliable 50% thresholds (average coefficient of variation=5.1%) based on about 30 responses. Thresholds obtained in this way correlate highly with constant stimulus measurements requiring six times as many responses. Computer-assisted Wetherill tracking should find wide application in psychophysical screening tests. © 1979 Psychonomic Society, Inc.
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页码:526 / 528
页数:3
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