Research Methods

Quasi-Experimental Designs


Does exposure to antisocial activity in the media cause people to act in antisocial ways?

In 1949, the U.S. Congress voted to freeze the creation of television stations, so only certain cities that already had television would be exposed to TV. In 1954, the freeze was lifted and many more cities had television programming available. Crime shows, from the beginning, were popular. Do the data above suggest that TV action leads to similar behaviors among the populace?

What factors might limit your confidence in drawing a causal conclusion?