In a contingent tangible condition of a functional analysis the goal is to test if problem behavior is maintained by obtaining access to a preferred tangible item The proper implementation as described in the text involves a specific antecedent arrangement and a specific consequence The client should initially have access to only the preferred tangible adult attention and neutral or moderately preferred toys to ensure that other potential reinforcers attention other activities are available in the background allowing the tangible condition to stand out as the primary variable being tested Then the preferred tangible is occasionally removed to create a motivating operation deprivation for the item If the behavior occurs and were going to give it back meaning the preferred tangible is immediately returned contingent on the problem behavior This specific sequence allows the experimenter to observe if the problem behavior reliably increases under these conditions thus suggesting tangible access as a maintaining function Options A C and D deviate from this standard by either restricting access to other items removing the tangible only contingent on behavior which is typically done in the escape condition or omitting the occasional removal to evoke the behavior