Final answer:
The question refers to a preference assessment method in psychology used to determine reinforcers, where a chosen item is kept in an array while others are replaced. The concept of reinforcement delivered after an unpredictable number of responses relates to a variable ratio reinforcement schedule.
Step-by-step explanation:
The question refers to a concept used in psychological studies and behavior analysis, touching upon both learning and reinforcement schedules. In this multiple stimulus assessment, the procedure described where an individual is presented with an array of stimuli, and the item they select is left in the array while non-selected items are replaced, relates to preference assessments often used in applied behavior analysis to determine reinforcers or preferences for individuals, particularly those with developmental disabilities.
The reference to reinforcement being delivered after an unpredictable number of responses suggests a reinforcement schedule known in psychology as a variable ratio schedule. This type of reinforcement schedule provides reinforcement after a non-fixed number of responses, which is designed to create a high and steady rate of responding. It is commonly used because it is resistant to extinction, meaning that the behavior is less likely to decrease once the reinforcement is stopped.
Overall, this question deals with methodologies for assessing preferences and determining effective reinforcers within a learning or therapeutic context, which is crucial for understanding behavior change and implementing successful interventions.