Simple Explanations of Turnout Decline

Several recent studies have claimed to explain the post-1960 decline in U.S. presidential and congressional election turnout in terms of just a few variables. Abramson and Aldrich (1982) attribute the great bulk of the decline to aggregate declines in partisanship and political efficacy. Shaffer (1981) attributes still more of the decline to aggregate decreases in these same two variables plus age and following the campaign in the newspapers. And Kleppner (1982) attributes “virtually all” of the decline to aggregate decreases in the first three of these variables. We show how these studies measure explanation too generously and how the very short-handedness of their models makes them seem more successful than they are. These few variables, we conclude, leave most of the decline unexplained.