2023 Volume 33 Issue 2 Pages 202-211
Various types of research outputs are produced by research projects granted by funding agencies. The Grants-in-Aid for Scientific Research (KAKENHI) asks grant recipients to report their research outputs in fixed categories: journal articles, conference presentations, books, and industrial properties. In the open science era, many research outputs that do not fall into these categories are generated and reported beyond these categories (e.g., listing a preprint as a journal article). In this paper, we investigate the diversity of research outputs of KAKENHI by analyzing their resource types. As a result, we observe that the diversity of research outputs of KAKENHI is much lower than those of funding agencies in foreign countries, although it has increased in the past decade. We also find that larger research projects produce more diverse research outputs. For the research projects by young researchers, we see that they list preprints as research outputs more frequently. These findings suggest that the evaluation of diverse research outputs is demanded in Japan.
