The factors that influence the effective use of modeling are their history with being reinforced or punished for modeling others, characteristics of the person to be modeled, how many people are modeling the behaviour, and combining modeling with rules. The factors that influence the effective use of physical guidance are physical prompts in combination with other procedures. One example of a rule is when a teacher tells you that your grade will depend on meeting the criteria. An example of a goal is to lose 50 lbs by january by eating healthy. An example of modeling is if a child holds the railing while walking up the stairs because the child sees their mom doing that. An example of physical guidance is when parents who have an autistic child hold up a picture of a dog and say dog , in hopes that the child will repeat the word. Serve or deny importance of behaviour modification principles.