Accession Number:

AD0630391

Title:

PSYCHOPHYSICAL METHODOLOGY III. DEDUCTIONS FROM THE ASSUMPTION THAT A CUMULATIVE SYMMETRICAL DISTRIBUTION UNDERLIES THRESHOLD PHENOMENA,

Descriptive Note:

Corporate Author:

NAVAL AIR DEVELOPMENT CENTER JOHNSVILLE PA AEROSPACE MEDICAL RESEARCH DEPT

Personal Author(s):

Report Date:

1965-12-31

Pagination or Media Count:

18.0

Abstract:

The phi-gamma and quantal hypotheses are special cases of the hypothesis of a cumulative symmetrical distribution. Assuming any cumulative symmetrical distribution it follows that a a descending method of limits DML threshold distribution is a mirror image of an ascending method of limits AML threshold distribution b the DML mean threshold, M sub D, is higher than the AML mean threshold, M sub A c M sub A M sub D S sub O S sub n, where S sub O and S sub n are the stimuli associated with p values probability of a Yes response of .00 and 1.00, respectively d the median threshold of the method of constant stimuli is S sub O S sub n2, as is the mean threshold of the pooled AML and DML distributions. Author

Subject Categories:

  • Psychology
  • Statistics and Probability

Distribution Statement:

APPROVED FOR PUBLIC RELEASE