The objective is to increase participation in carpooling and use of mass transit during this special week. A long-term objective, of course, is to increase the number of people who use carpools or mass transit on a regular basis. Your PR firm has been retained to promote Ohio Rideshare Week. Your campaign will include a news conference with the governor encouraging participation, press kits, news releases, interviews on broadcast talk shows, special events and distribution of information booklets at major businesses. What methods would you use to evaluate the effectiveness of your PR efforts on behalf of Ohio Rideshare Week?