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OCR for page 13
Doctoral Scientists and Engineers in the United States award. Postsecondary teachers of science and engineering were from 23 to 36 percent of the total. The proportions working as scientists or engineers, on the other hand, decreased as years since doctorate increased. Of those with 5 years or less since doctorate 52 percent were scientists and 13 percent were engineers; of those more than 25 years since doctorate 33 percent were scientists and 7 percent were engineers. Retention and Mobility In this report, the percentage of employed individuals with degrees in a particular field that were also working as practitioners or postsecondary teachers in that specialty is called the “retention rate” of the field. In 1995 the retention rates ranged from highs in computer sciences and psychology, 72 and 71 percent, respectively, to a low of 41 percent for agricultural/environmental sciences doctorates (see Table 11 ). FIGURE 5. Retention in field of science and engineering Ph.D.s, by field of doctorate, 1995.