Glen and Lynda are hired to rake leaves. Glen is paid \(\$_{3}\) for each bag of leaves he rakes. Lynda is paid \(\$ 7\) for each hour she works. Glen is paid according to a ______ schedule of reinforcement. Lynda is paid according to a ____ schedule . a. variable ratio; variable interval b. fixed ratio; fixed interval c. variable ratio; fixed interval d. fixed ratio; variable interval

There are two types of reinforcement schedules: ratio and interval. Each type has a fixed and a variable variant. 1. Fixed Ratio: Reinforcement is given after a specific number of responses. In this case, it would mean payment after a certain number of tasks completed. 2. Variable Ratio: Reinforcement is given after an unpredictable number of responses. The payment here is not fixed to a specific number of tasks completed. 3. Fixed Interval: Reinforcement is given after a specific amount of time has passed. In this context, it means payment after a certain number of hours worked. 4. Variable Interval: Reinforcement is given after an unpredictable amount of time has passed. Payment, in this case, is not fixed to a specific number of hours worked.

Since Glen is paid for each bag of leaves he rakes, his payment is determined by the number of tasks (bags) he completes. This corresponds to a ratio reinforcement schedule. As the payment is fixed, it means Glen is paid according to a 'fixed ratio' schedule.

Lynda is paid for each hour she works, meaning her payment is determined by the amount of time she spends working. This corresponds to an interval reinforcement schedule. As she is paid a fixed amount for each hour, it means Lynda is paid according to a 'fixed interval' schedule.

Based on our analysis, we can conclude that Glen is paid according to a 'fixed ratio' schedule and Lynda is paid according to a 'fixed interval' schedule. Comparing this with the given options, the correct answer is: b. fixed ratio; fixed interval