Final answer:
False, The appropriate time limit for reinforcement to be effective is not three seconds.
Step-by-step explanation:
The statement that three seconds is considered the appropriate time limit for reinforcement to be effective is False. Reinforcement timing depends on the reinforcement schedule being used. The examples given in the references indicate different time intervals for reinforcement, such as a fixed interval schedule where reinforcement is given after a set amount of time, or a variable ratio schedule where reinforcement is given after an unpredictable number of responses. It is important to understand the specific reinforcement schedule being used to determine the appropriate timing for reinforcement.