1. As before, the Catholic category includes all those with religious preferences other than Protestant. Tables 1 and 2 reflect a correction in the statistics for the 1972 religious categories.
2. The 1976 party identification figures are 40 percent Democrat (the same as 1972), 23 percent Republican (down two percent since 1972), and 29 percent independent (up one percent). The debate about the relationship between party identification and vote is an active one. See for example Arthur H. Miller et al., “A Majority Party in Disarray: Policy Polarization in the 1972 Election,” American Political Science Review, 70 (09 1976), 753—78, and the following comments and rejoinder.
3. The proportion of the people in families earning less than $3000 per year has continued to shrink, from 12 percent in 1972 to 9 percent in 1976 (Table 1, col. 7). This was largely due to inflation, as seen by the change in the Consumer's Price Index (using 1957—59 = 100) which was 145.7 in 1972 and 198.3 in 1976.
4. In the 1976 survey there was no overreporting of the winner's vote, so the only correction that was necessary was for turnout.