There Were a Record 324 Automobile Fatalities in Connecticut in 1955

question 53

Multiple Choice

There were a record 324 automobile fatalities in Connecticut in 1955, which prompted a statewide crackdown on speeding. The next year there were 284 fatalities. What did Campbell conclude from his evaluation of the state's program?

• A)regression to the mean occurred and it accounted for the reduction from 324 to 284
• B)because the program was so highly publicized, it accounted for the drop from 324 to 284
• C)the drop from 324 to 284 was partly due to regression, but the program was also successful to a degree
• D)the results could be attributed partly to regression and partly to instrumentation (they defined "traffic fatality" different in 1956)