These are the principal questions of this study: are the early functio
ns of negation, such as REJECTION, and the later emerging DENIAL no de
velopmentally related? And when do children start to deny? So far, evi
dence for the questions at hand has been almost exclusively observatio
nal. We decided on a simple elicitation procedure instead, asking 48 c
hildren (ages between I ; I and 2 ; 7) easy yes/no-questions. The most
likely age range for the appearance of denial no was I ; 8-2 ; I. Its
error-free acquisition supports the continuity theory of negation dev
elopment, which holds that essentials of denial no carry over from the
earlier functions of no. Finally an attempt is made to account for th
e beginnings of denial in terms of semantics and the representational
theory of child cognition.