They believe that under optimal,
perhaps utopian conditions, if each child could
develop at his/her own pace and with proper
personal stimulation, behaviour problems would
not exist. They believe that these problems are
caused by faulty, unsuitable, non-differential didactics,
exactly as described by Rogers and Freiberg
(1994), and in line with the principles of the
humanistic educational stream (see Porter, 2000).