An Automobile Plant Plans to Implement a New Assembly Procedure

Multiple Choice

An automobile plant plans to implement a new assembly procedure throughout the plant in order to increase productivity. To find out whether the new procedure is better than the old, management plans to compare weekly productivity over the last six months before the change with the first six months after the change. What type of quasi-experimental design is illustrated in this example?

A) interrupted time series
B) delayed control group
C) regression discontinuity
D) repeated treatment