Chuck Works on the Assembly Line at Widgets,Inc

Multiple Choice

Chuck works on the assembly line at Widgets,Inc.Because he is a union employee,he is paid $10 for every fifteen widgets he makes.His co-worker,Sally,is a nonunion worker and is paid only when the company makes money,which averages out to be two times per month.Chuck is reinforced on a ____ schedule,while Sally is reinforced on a ____ schedule.

A) fixed-interval; variable-interval
B) variable-interval; fixed-ratio
C) fixed-interval; variable-ratio
D) fixed-ratio; variable-interval