← Search Econometrica Vol. 53 No. 4 1985 The X^2 Goodness of Fit Test for Models with Parameters Estimated from Microdata James J. Heckman DOI10.2307/1912668 Volume53 Issue4 Pages994 Sources semanticscholar openalex crossref Cite APA 7 MLA 9 Chicago (author–date) Harvard Elsevier Harvard (JFE, JBF…) The Accounting Review Academy of Management American Marketing Association INFORMS (Management Science) Copy citation Copied ✓