Which of the following statements is (are) true regarding reinforcement and behavior
(1) A continuous reinforcement is best in the early stages of learning
(2) An intermittent schedule of reinforcement is best once the skill is well learned.
(3) The reinforcement schedule should depend on what kind of skill it is (i.e., cognitive or somatic)
(4) all of the above
(5) both (1) and (2)