Accession Number:
AD0671810
Title:
RELATIONSHIPS AMONG ASSUMPTIONS OF THE METHOD OF LIMITS AND THE METHOD OF CONSTANT STIMULI,
Descriptive Note:
Corporate Author:
NAVAL AIR DEVELOPMENT CENTER JOHNSVILLE PA AEROSPACE MEDICAL RESEARCH DEPT
Personal Author(s):
Report Date:
1968-05-22
Pagination or Media Count:
46.0
Abstract:
The phi-gamma hypothesis is a special case of the general hypothesis of a cumulative symmetrical distribution. Assuming any cumulative symmetrical distribution a the descending method of limits DML threshold distribution is asymmetrical and is a mirror image of the ascending method of limits AML distribution b the combined method of limits CML distributions is symmetrical c with the subscripts A, D, and C referring to AML, DML, and CML distributions M sub A M sub C M sub D sigma sub A sigma sub D sigma sub C sigma sub A d as step size increases M sub A increases, M sub D decreases, M sub C remains constant, sigma sub A and sigma sub D increase, sigma sub C first decreases and then increases e the mean threshold of the method of constant stimuli equals M sub C. These and other predictions are supported experimentally. Author
Descriptors:
Subject Categories:
- Psychology