Public opinion has not been consistent over the years.

In an attempt to reduce the use of gasoline, a city imposed a $2.50 per gallon tax on gasoline in 2005

A researcher working for the city, located data on annual gallons used for the 5 years leading up to the gas tax (to provide a baseline) and located data for the 5 years after the start of the gasoline tax (to show the consumption pattern after the tax). Which of the following best describes this study design? a. A-B-A-B design b. Changing-criterion design c. Interrupted time-series design d. Regression-discontinuity design

Why did Congress expand TriCare to cover Medicare gaps but not apply increased coverage to elderly Americans not in the military?

A. Congress felt it was necessary in order to address the issue of increased numbers of wounded soldiers coming back from Iraq and Afghanistan. B. The increased coverage of TriCare was just a pilot program in preparation for a larger, national increase. C. Congress actually did expand Medicare coverage for all Americans while also expanding TriCare. D. It was a politically attractive move in an election year, and a national increase in coverage was deemed too costly.