In Tom's example, how frequently does he receive his reinforcer for typing?

In Tom's example, the reinforcement he receives for typing is given after he has completed a set number of responses—in this case, after typing six responses. This method exemplifies a fixed ratio reinforcement schedule, where the reinforcer is delivered after a specific number of correct responses or behaviors. This scheduling can be highly effective because it creates a clear and predictable pattern of reward, which often encourages the behavior to continue as the individual knows exactly what is required to earn the reinforcement.

The other methods of reinforcement mentioned, such as receiving rewards after every page or randomly based on performance, do not align with Tom's approach. The emphasis on a fixed number, rather than variability or a different measure, clarifies why the answer references the specific count after which Tom receives the reinforcer. This structure helps maintain motivation and effort in the task he is performing.