Lincoln Elementary School has a policy that prohibits students from running in the halls. Ms. Davis, the hall monitor, waits by the cafeteria doors every morning from 8:00-8:30, watching for "runners." The schedule of reinforcement being used by the school—and Ms. Davis—to stop students from running is a.

fixed interval.

b.

fixed ratio.

c.

variable interval.

d.

variable ratio.

A.) Fixed interval schedule

Explanation:

Reinforcement schedules may be carried out after a number of resposes or a specific length of time. Ratio schedules involves reinforcement carried out after a certain number of responses while interval schedules are carried out based on a specific time frame.

Similarly, Fixed schedules involves responses carried out within a known or predictable time frame while variable schedules aren't fixed and are thus unpredictable.

In the case of Ms. Davis narrated above, she carries out reinforcement every morning between 8:00 - 8:30 a.m ; Thaibdepicysbthat reinforcement occurs at a fixed time and duration ; this means the time is known and the period is time is specified. Hence, this is a FIXED INTERVAL SCHEDULE.

pattern wax

explanation:

pattern wax is used for casting restoration as part of lost-wax technique.

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