Date of Award
1973
Document Type
Thesis
Publication Status
Version of Record
Submission Date
October 2026
Abstract
Twenty-four naive human Ss were run in an auditory signal detection task examining two hypotheses. 1) Naive Ss can produce data consistent with the theoretical assumptions of normality and equal variance of the underlying distributions. ROC curves on double-probability paper were found to be generally supportive of these assumptions as indicated by their linearity and slope. 2) The "trial-by-trial" method more evenly distributes the effect of nonsensory variables, providing less variable estimates of d' and S than does the "block" method. No differences were found in mean d' values although the "trial-by-trial" method produced less variable estimates. The ''block" method produced somewhat better orderings of individual, but not mean, beta values across probability levels. It is concluded that further use of naive Ss in signal detection paradigms permissible and that the "trial-by-trial" method is preferable for obtaining stable estimates of d', but not for obtaining appropriate orderings of beta.
Extent
75 p.
Recommended Citation
MORRIS, CHARLES D., "TRIAL-BY-TRIAL VS. BLOCK METHODS OF CUING AUDITORY SIGNAL PROBABILITIES WITH NAIVE SUBJECTS" (1973). Electronic Theses and Dissertations 1970 - 1979. 238.
https://digitalcommons.fau.edu/etd_general_2/238
Identifier
FADT13594
Comments
Thesis (M.A.)--Florida Atlantic University, 1973.|Thesis (M.A.)--Florida Atlantic University, 1973.