Which pair of terms is best matched?
a. Variable-ratio (VR) schedule / scalloping
b. Fixed-interval (FI) schedule / Las Vegas-style slot machines
c. Fixed-ratio (FR) schedule / piecework
d. Variable-interval (VI) schedule / regular pauses following reinforcement
c. Fixed-ratio (FR) schedule / piecework
Answer feedback: VR schedules are akin to those with which Vegas-style slot machines are equipped. With larger schedule values, FI schedules and FR schedules are marked by regular pauses after reinforcement. FI schedules produce a characteristic scalloped pattern of responding. FR schedules are the basis of piecework arrangements in the workplace.
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