We were alerted to this warning from James Gee because it is from a chapter that reflects on assessment from a sociocultural-situated perspective. The New Zealand early childhood education curriculum, Te Whāriki, also takes this perspective and, in this short article, we argue that the use of Organisation for Economic Co-operation and Development (OECD) standardized tests to evaluate our early childhood education sector, while it may be perfectly ‘scientific’, could be disastrous for Te Whāriki.