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

Subject Categories:

  • Psychology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE