Perhaps the most difficult problem in human systems is the unresponsiveness of individuals to indicated correction.Stimulus control any influence exerted by the environment on behavior.

The difficulty also might be overcome by reducing the time lag between the measurement of the output and the adjustment to input.To develop effective problem-solving skills and strategies, one must specifically differentiate between the circumstances that can and cannot be personally managed.

Information flow Edit Oscillation and Feedback Another problem of control relates to the improper timing of information introduced into the feedback channel.Control group the group of animals with which the experimental group is to be matched; the group which has not had its variables manipulated experimentally.