The two issues for each same year furnished quite similar numbers except for 1966, in which the very young journal had several peculiar features (including mostly one-study papers and some short reports, one of which oddly reported four brief and very similar studies that were ultimately counted as one), and so we coded two additional issues for that year to furnish a broader base; in addition, one of the originally coded issues was lost because of catastrophic computer failure. In all, we coded 304 studies across the 11 issues of JPSP. Figure 1 shows the results of this coding. Back in 1966, when most articles contained only a single study, about half of these involved actual behavior. The study of behavior increased its share of the journal into the 1970s. But the use and study of behavior dropped sharply in 1986, and the subsequent decades have seen a continued downward trend. Apparently, the study of behavior has been in a steady decline since the early 1980s