Trends Regarding the 15 Broad Topical Areas
Tables 1 and 2 include results for the entire 45year period for PPsych and JAP, respectively, for each of the 15 broad topical areas. Table 1 reveals that the top five topical areas (ranked from 1 to 5) published in PPsych from 1963 to 2007 are as follows (the first number in parentheses indicates the total number of articles for each topic, and the second number indicates the percentage of the 1,451 articles published on this topic over the entire 45year period):