Classical Communication Models ●Model of Lasswell's During World War ll,US Federal agencies used Lasswell's secret model to test a variety of propaganda techniques and to create some very powerful propaganda posters,films,and radio broadcasts.For example,it was discovered that“help win the war'”wasn't the most effective slogan to use for selling war bonds.It appealed to men,but not women. This led to the development of a more effective slogan:"Help win the war and bring the boys home.为Classical Communication Models ●Model of Lasswell’s During World War II, US Federal agencies used Lasswell’s secret model to test a variety of propaganda techniques and to create some very powerful propaganda posters, films, and radio broadcasts. For example, it was discovered that “help win the war” wasn’t the most effective slogan to use for selling war bonds. It appealed to men, but not women. This led to the development of a more effective slogan: “Help win the war and bring the boys home