d tobcm. Testing for normality after tobit estimation. d Program by David Drukker, StataCorp . d Updated statalist distribution, 05 November 2002. d d tobcm implements a conditional moment test for testing the d null hypothesis that the disturbances in a tobit model have d a normal distribution. This test was derived by Pagan and d Vella (1989), who built on work by Newey (1985) and Tauchen (1985). d tobcm also implements the bootstrap method described by Drukker (2002). f tobcm/tobcm.ado f tobcm/tobcm.hlp f tobcm/_tobsimdta.ado