Record Display for the EPA National Library Catalog

RECORD NUMBER: 17 OF 24

OLS Field Name OLS Field Data
Main Title Multiple Probit Analysis with a Nonzero Background.
Author Hasselblad, Victor ; Stead, Andrew G. ; Creason, John P. ;
CORP Author Health Effects Research Lab., Research Triangle Park, NC.
Year Published 1980
Report Number EPA-600/J-80-256;
Stock Number PB81-192023
Additional Subjects Probability theory ; Convergence ; Algorithms ; Probit analysis ; Maximum likelihood estimation
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB81-192023 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 8p
Abstract
The 'EM' (Expectation-Maximization) algorithm is applied to probit analysis with multiple independent variables and a nonzero response rate. The equations for the maximum likelihood estimators are relatively simple, and converge in all the cases so far examined. An animal bioassay example is used to demonstrate the method. Likelihood ratio tests are used for significance tests in the analysis.