Death education encompasses programs designed to help people of all ages deal better with death, dying, and grief

In a(n) _____ schedule, the first response made after a specific period of time has elapsed brings the reinforcement

a) variable-interval b) interval c) variable-ratio d) fixed-ratio

From the earlier half of the 20th century to 1973, the use of midwives _____

a. increased to 40% b. decreased from 50% to 1% c. decreased by a third d. increased from 1% to 50%