Abstract
Measures of research productivity have become widely used for obtaining tenure, third-party funding, and additional resources from universities. However, previous studies indicate that men might have a higher research output than women, with mixed conclusions about the factors that drive these differences. This study explores to what extent the research productivity of psychology professors in Germany is related to gender and, furthermore, how any gender gaps can be explained by controlling for individual and organizational factors. In addition, three publication dimensions (publications in top 10% journals, journal articles, and book and collection chapters) are distinguished to determine the effect of gender on research productivity as precisely as possible. A unique data set based on all full professors in psychology in Germany and their publication record in 2013 and 2014 is used (\(N_\mathrm{authors}\) = 294; \(N_\mathrm{articles}\) = 2252, \(N_\mathrm{chapters}\) = 439). Thus, this study provides a current overview of the state of research productivity in an entire discipline after researchers receive tenure and external restrictions are lessened. Our research helps to further locate the point at which gender differences in publication numbers occur. As we are the first to systematically to analyze different publication types, we are able to show that there is no difference in publication numbers for less-prestigious book chapters. However, we find significant gender differences for research productivity in academic journals that are more important for career advancement and peer recognition, even after we control for the most important individual and organizational factors that might explain gender differences. Our results point to the direction that women do research and write manuscripts, but may have different publication patterns: instead of submitting to competitive journals, they may be satisfied with less-prestigious book chapters. As publications in peer-reviewed journals are especially important for career advancement as well as peer recognition, this publication pattern may be disadvantageous for women. Overall, we conclude that additional research to understand these developments is needed that focuses on the motives and beliefs of researchers, both to improve gender equality in academia and to give women better chances to gain recognition and prestige.


Similar content being viewed by others
Notes
The dataset is available by the authors upon request.
We used the most popular career focused social networks in Germany “Xing” (www.xing.de) and “LinkedIn” (www.linkedin.com).
To further validate our results, we replicated all analyses by estimating negative-binomial models for the non-standardized dependent variables and established estimates similar to the estimates from the OLS regression models.
We did not calculate the average Journal Impact Factor (JIF) per researchers as others did (e.g. König et al. 2015) because we follow the arguments of Moed (2002) that JIF presents a distorted picture of the actual impact of individual authors. Therefore, we count the number of publications in high-ranking journals as a proxy for higher quality. That does not automatically assume that a high JIF can be used to calculate individual averaged indicators for authors.
Even though several authors (e.g. Cheek et al. 2006; Seglen 1997) argue that the JIF can be used for measuring research quality, we are aware that this is only a proxy for the quality of individual articles. Larivière and Gingras (2010) could show a moderate correlation between JIF and articles’ citation counts. However, high citation counts do not necessary denote high research quality. We relied on a JIF measure computed by the Kompetenzzentrum Bibliometrie that is highly correlated with the JIF provided in the Journal Citation Reports (\(r = 0.96\)).
A list of all cut-off values can be found in the Appendix.
A regular boxplot of the same data can be found in the Appendix. for comparison, see Fig. 3.
In order to check the robustness of our bivariate findings, we conducted a bootstrapped t-test with 1,000 repetitions for each publication dimension. The findings confirm the findings of the regular t-test (see Table 5 in the Appendix).
The full tables include linear and squared terms of the variable career age. Between the models, the coefficient for gender does not change up to the third decimal place.
For WholeCount90 and WholeCount10 the full model is Model 4, for Chapter the full model is Model 3.
References
Abramo, G., D’Angelo, C. A., & Caprasecca, A. (2009a). The contribution of star scientists to overall sex differences in research productivity. Scientometrics, 81(1), 137–156.
Abramo, G., D’Angelo, C. A., & Caprasecca, A. (2009b). Gender differences in research productivity: A bibliometric analysis of the italian academic system. Scientometrics, 79(3), 517–539.
Abramo, G., D’Angelo, C. A., & Murgia, G. (2013). Gender differences in research collaboration. Journal of Informetrics, 7(4), 811–822.
Adler, R., Ewing, J., & Taylor, P. (2009). Citation statistics. Statistical Science, 24(1), 1–14.
Aiston, S. J., & Jung, J. (2015). Women academics and research productivity: An international comparison. Gender and Education, 27(3), 205–220.
Akbaritabar, A., Casnici, N., & Squazzoni, F. (2017). The conundrum of research productivity: A study on sociologists in italy. Scientometrics, 7(2), 528.
Allison, P. D., & Long, J. S. (1990). Departmental effects on scientific productivity. American Sociological Review, 55(4), 469–478.
American Psychological Association (2006). Women in the American Psychological Associaton. Women’s Programs Office.
Araújo, E. B., Araújo, N. A. M., Moreira, A. A., Herrmann, H. J., & Andrade, J. S. (2017). Gender differences in scientific collaborations: Women are more egalitarian than men. PloS ONE, 12(5), e0176791.
Arruda, D., Bezerra, F., Neris, V. A., Rocha De Toro, P., & Wainera, J. (2009). Brazilian computer science research: Gender and regional distributions. Scientometrics, 79(3), 651–665.
Baccini, A., Barabesi, L., Cioni, M., & Pisani, C. (2014). Crossing the hurdle: The determinants of individual scientific performance. Scientometrics, 101(3), 2035–2062.
Bakanic, V., McPhail, C., & Simon, R. J. (1987). The manuscript review and decision-making process. American Sociological Review, 52(5), 631–642.
Bauer, H. P. W., Schui, G., von Eye, A., & Krampen, G. (2013). How does scientific success relate to individual and organizational characteristics? A scientometric study of psychology researchers in the German-speaking countries. Scientometrics, 94(2), 523–539.
Beaudry, C., & Larivière, V. (2016). Which gender gap? Factors affecting researchers’ scientific impact in science and medicine. Research Policy, 45(9), 1790–1817.
Becher, T. (1994). The significance of disciplinary differences. Studies in Higher Education, 19(2), 151–161.
Bloch, C., Sørensen, M. P., Graversen, E. K., Schneider, J. W., Schmidt, E. K., Aagaard, K., et al. (2014). Developing a methodology to assess the impact of research grant funding: A mixed methods approach. Evaluation and program planning, 43, 105–117.
Borrego, Á., Barrios, M., Villarroya, A., & Ollé, C. (2010). Scientific output and impact of postdoctoral scientists: A gender perspective. Scientometrics, 83(1), 93–101.
Bozeman, B., & Gaughan, M. (2011). How do men and women differ in research collaborations? An analysis of the collaborative motives and strategies of academic researchers. Research Policy, 40(10), 1393–1402.
Carayol, N., & Matt, M. (2006). Individual and collective determinants of academic scientists’ productivity. Information Economics and Policy, 18(1), 55–72.
Cheek, J., Garnham, B., & Quan, J. (2006). What’s in a number? issues in providing evidence of impact and quality of research(ers). Qualitative health research, 16(3), 423–435.
Cikara, M., Rudman, L., & Fiske, S. (2012). Dearth by a thousand cuts? accounting for gender differences in top-ranked publication rates in social psychology. The Journal of social issues, 68(2), 263–285.
Clogg, C. C., Petkova, E., & Haritou, A. (1995). Statistical methods for comparing regression coefficients between models. American Journal of Sociology, 100(5), 1261–1293.
Cole, J. R., & Zuckerman, H. (1984). The productivity puzzle: Persistence and change in patterns of publication on men and wornen scientists. In M. W. Steinkamp & M. L. Maehr (Eds.), Women in science, advances in motivation and achievement (pp. 217–258). Greenwich, Conn.: JAI Press.
Cook, I., Grange, S., & Eyre-Walker, A. (2015). Research groups: How big should they be? PeerJ, 3, e989.
Costas, R., Nane, T. & Lariviere, V. (2015). Is the year of first publication a good proxy of scholars’ academic age?. In Proceedings of the 15th international conference of the international society for scientometrics and informetrics (pp. 988–998).
D’Amico, R., Vermigli, P., & Canetto, S. S. (2011). Publication productivity and career advancement by female and male psychology faculty: The case of italy. Journal of Diversity in Higher Education, 4(3), 175–184.
Defazio, D., Lockett, A., & Wright, M. (2009). Funding incentives, collaborative dynamics and scientific productivity: Evidence from the eu framework program. Research Policy, 38(2), 293–305.
Duch, J., Zeng, X. H. T., Sales-Pardo, M., Radicchi, F., Otis, S., Woodruff, T. K., et al. (2012). The possible role of resource requirements and academic career-choice risk on gender differences in publication rate and impact. PloS One, 7(12), e51332.
Duffy, R. D., Jadidian, A., Webster, G. D., & Sandell, K. J. (2011). The research productivity of academic psychologists: Assessment, trends, and best practice recommendations. Scientometrics, 89(1), 207–227.
Duffy, R. D., Martin, H. M., Bryan, N. A., & Raque-Bogdan, T. L. (2008). Measuring individual research productivity: A review and development of the integrated research productivity index. Journal of Counseling Psychology, 55(4), 518–527.
Dundar, H., & Lewis, D. R. (1998). Determinants of research productivity in higher education. Research in Higher Education, 39(6), 607–631.
Endersby, J. W. (1996). Collaborative research in the social sciences: Multiple authorship and publication credit. Social Science Quarterly, 77(2), 375–392.
European Commission. (2013). She Figures 2012: Gender in research and innovation, Volume 25617 of EUR. Luxembourg: Publications Office of the European Union.
Fabel, O., Hein, M., & Hofmeister, R. (2008). Research productivity in business economics: An investigation of austrian, german and swiss universities. German Economic Review, 9(4), 506–531.
Fanelli, D., & Larivière, V. (2016). Researchers’ individual publication rate has not increased in a century. PloS ONE, 11(3), e0149504.
Fedderke, J. W., & Goldschmidt, M. (2015). Does massive funding support of researchers work? evaluating the impact of the south african research chair funding initiative. Research Policy, 44(2), 467–482.
Fell, C. B., & König, C. J. (2016). Is there a gender difference in scientific collaboration? a scientometric examination of co-authorships among industrial-organizational psychologists. Scientometrics, 108(1), 113–141.
Fox, M. F. (2005). Gender, family characteristics, and publication productivity among scientists. Social Studies of Science, 35(1), 131–150.
Frensch, P. A. (2013). Zur Lage der Psychologie als Fach, Wissenschaft und Beruf. Psychologische Rundschau, 64(1), 1–15.
Frost, J., & Brockmann, J. (2014). When qualitative productivity is equated with quantitative productivity: Scholars caught in a performance paradox. Zeitschrift für Erziehungswissenschaft, 17(S6), 25–45.
Gibbons, M., Limoges, C., Nowotny, H., Schwartzman, S., Scott, P., & Trow, M. (1994). The new production of knowledge: The dynamics of science and research in contemporary societies (Reprinted ed.). Los Angeles: Sage Publ.
Glänzel, W. (2002). Co-authorship patterns and trends in the sciences (1980–1998). a bibliometric study with implications for database indexing and search strategies. Library Trends, 50, 461–473.
González-Álvarez, J., & Cervera-Crespo, T. (2017). Research production in high-impact journals of contemporary neuroscience: A gender analysis. Journal of Informetrics, 11(1), 232–243.
Groot, T., & García-Valderrama, T. (2006). Research quality and efficiency. Research Policy, 35(9), 1362–1376.
Guetzkow, J., Lamont, M., & Mallard, G. (2004). What is originality in the humanities and the social sciences? American Sociological Review, 69, 190–212.
Guyer, L., & Fidell, L. (1973). Publications of men and women psychologists: Do women publish less? American Psychologist, 28(2), 157–160.
Hsu, J.-W., & Huang, D.-W. (2011). Correlation between impact and collaboration. Scientometrics, 86(2), 317–324.
Huang, D.-W. (2015). Temporal evolution of multi-author papers in basic sciences from 1960 to 2010. Scientometrics, 105(3), 2137–2147.
Hudson, J. (1996). Trends in multi-authored papers in economics. The Journal of Economic Perspectives, 10(3), 153–158.
Hunter, L. A., & Leahey, E. (2010). Parenting and research productivity: New evidence and methods. Social Studies of Science, 40(3), 433–451.
Jansen, D. (2010). Von der Steuerung zur Governance: Wandel der Staatlichkeit? In D. Simon, A. Knie & S. Hornbostel (Eds.), Handbuch Wissenschaftspolitik (pp. 39–50). Wiesbaden: VS Verlag für Sozialwissenschaften.
Jansen, D., Wald, A., Franke, K., Schmoch, U., & Schubert, T. (2007). Drittmittel als Performanzindikator der wissenschaftlichen Forschung. KZfSS Kölner Zeitschrift für Soziologie und Sozialpsychologie, 59(1), 125–149.
Joy, S. (2006). What should I be doing, and where are they doing it? Scholarly productivity of academic psychologists. Perspectives on Psychological Science: A Journal of the Association for Psychological Science, 1(4), 346–364.
Katz, J. S., & Martin, B. R. (1997). What is research collaboration? Research Policy, 26(1), 1–18.
King, C. (2012). Multiauthor papers: Onward and upward. Science Watch, 7, 62–64.
König, C. J., Fell, C. B., Kellnhofer, L., & Schui, G. (2015). Are there gender differences among researchers from industrial/organizational psychology? Scientometrics, 105(3), 1931–1952.
Krempkow, R., A. Lottmann, & T. Möller (Eds.) (2014). Völlig losgelöst? Governance der Wissenschaft. Band der 6. iFQ-Jahrestagung, Volume 15 of iFQ-working paper.
Kyvik, S. (1995). Are big university departments better than small ones? Higher Education, 30, 295–304.
Kyvik, S., & Teigen, M. (1996). Child care, research collaboration, and gender differences in scientific productivity. Science, Technology, & Human Values, 21(1), 54–71.
Larivière, V., & Gingras, Y. (2010). On the relationship between interdisciplinarity and scientific impact. Journal of the American Society for Information Science and Technology, 61(1), 126–131.
Larivière, V., Ni, C., Gingras, Y., Cronin, B., & Sugimoto, C. R. (2013). Bibliometrics: Global gender disparities in science. Nature, 504(7479), 211–213.
Larivière, V., Vignola-Gagné, E., Villeneuve, C., Gélinas, P., & Gingras, Y. (2011). Sex differences in research funding, productivity and impact: An analysis of québec university professors. Scientometrics, 87(3), 483–498.
Leahey, E. (2006). Gender differences in productivity: Research specialization as a missing link. Gender & Society, 20(6), 754–780.
Lee, S., & Bozeman, B. (2005). The impact of research collaboration on scientific productivity. Social Studies of Science, 35(5), 673–702.
Malouff, J., Schutte, N., & Priest, J. (2010). Publication rates of australian academic psychologists. Australian Psychologist, 45(2), 78–83.
McDowell, J. M., & Smith, J. K. (1992). The effect of gender-sorting on propensity to coauthor: Implications for academic promotion. Economic Inquiry, 30(1), 68–82.
Moed, H. F. (1996). Differences in the construction of sci based bibliometric indicators among various producers: A first over view. Scientometrics, 35(2), 177–191.
Moed, H. F. (2002). The impact-factors debate: the isi’s uses and limits. Nature, 415(6873), 731–732.
Möller, T., Schmidt, M., & Hornbostel, S. (2016). Assessing the effects of the german excellence initiative with bibliometric methods. Scientometrics, 109(3), 2217–2239.
Nielsen, M. W. (2015). Gender consequences of a national performance-based funding model: New pieces in an old puzzle. Studies in Higher Education, 42(6), 1033–1055.
Nosek, B. A., Graham, J., Lindner, N. M., Kesebir, S., Hawkins, C. B., Hahn, C., et al. (2010). Cumulative and career-stage citation impact of social-personality psychology programs and their members. Personality & Social Psychology Bulletin, 36(10), 1283–1300.
Nowotny, H., Scott, P., & Gibbons, M. (2001). Re-thinking science: Knowledge and the public in an age of uncertainty (1. Aufl ed.). s.l.: Polity.
Østby, G., Strand, H., Nordås, R., & Gleditsch, N. P. (2013). Gender gap or gender bias in peace research? publication patterns and citation rates for journal of peace research, 1983–2008. International Studies Perspectives, 14(4), 493–506.
Over, R. (1981). Representation of women on the editorial boards of psychology journals. American Psychologist, 36(8), 885–891.
Paul-Hus, A., Bouvier, R. L., Ni, C., Sugimoto, C. R., Pislyakov, V., & Larivière, V. (2015). Forty years of gender disparities in russian science: A historical bibliometric analysis. Scientometrics, 102(2), 1541–1553.
Peñas, C. S., & Willett, P. (2006). Brief communication: Gender differences in publication and citation counts in librarianship and information science research. Journal of Information Science, 32(5), 480–485.
Petty, R. E., & Krosnick, J. A. (Eds.). (2014). Attitude strength: Antecedents and consequences. Hoboken: Taylor and Francis.
Rathmann, J., & Mayer, S. J. (2017). Was beeinflusst die Produktivität von Professorinnen und Professoren? Eine Untersuchung individueller und organisatorischer Einflussfaktoren in der Psychologie. Beiträge zur Hochschulforschung, 2, 76–101.
Rørstad, K., & Aksnes, D. W. (2015). Publication rate expressed by age, gender and academic position—a large-scale analysis of Norwegian academic staff. Journal of Informetrics, 9(2), 317–333.
Sabharwal, M. (2013). Comparing research productivity across disciplines and career stages. Journal of Comparative Policy Analysis: Research and Practice, 15(2), 141–163.
Sax, L. J., Hagedorn, L. S., Arredondo, M., & Dicrisi, F. A. (2002). Faculty research productivity: Exploring the role of gender and family-related factors. Research in Higher Education, 43(4), 423–446.
Seglen, P. O. (1997). Citations and journal impact factors: Questionable indicators of research quality. Allergy, 52(11), 1050–1056.
Seglen, P. O., & Aksnes, D. W. (2000). Scientific productivity and group size a bibliometric analysis of norwegian microbiological research. Scientometrics, 49(1), 125–143.
Shin, J. C., & Cummings, W. K. (2010). Multilevel analysis of academic publishing across disciplines: Research preference, collaboration, and time on research. Scientometrics, 85(2), 581–594.
Slaughter, S., & Leslie, L. L. (1997). Academic capitalism: Politics, policies, and the entrepreneurial university. Baltimore: Johns Hopkins University Press.
Sotudeh, H., & Khoshian, N. (2014). Gender differences in science: The case of scientific productivity in nano science & technology during 2005–2007. Scientometrics, 98(1), 457–472.
Stack, S. (2002). Gender and scholarly productivity: 1970–2000. Sociological Focus, 35(3), 285–296.
Stack, S. (2004). Gender, children and research productivity. Research in Higher Education, 45(8), 891–920.
van Arensbergen, P., van der Weijden, I., & van den Besselaar, P. (2012). Gender differences in scientific productivity: A persisting phenomenon? Scientometrics, 93(3), 857–868.
van Thiel, S., & Leeuw, F. L. (2002). The performance paradox in the public sector. Public Performance & Management Review, 25(3), 267–281.
Wheelan, S. A. (2009). Group size, group development, and group productivity. Small Group Research, 40(2), 247–262.
White, A. (1985). Women as authors and editors of psychological journals: A 10-year perspective. American Psychologist, 40(5), 527–530.
Wood, F. (1990). Factors influencing research performance of university academic staff. Higher Education, 19(1), 81–100.
Xie, Y., & Shauman, K. A. (1998). Sex differences in research productivity: New evidence about an old puzzle. American Sociological Review, 63(6), 847–870.
Zainab, A. N. (1999). Personal, academic and departmental correlates of research productivity: A review of literature. Malaysian Journal of Library & Information Science, 4(2), 73–110.
Zeng, X. H. T., Duch, J., Sales-Pardo, M., Moreira, J. A. G., Radicchi, F., Ribeiro, H. V., et al. (2016). Differences in collaboration patterns across discipline, career stage, and gender. PLoS biology, 14(11), e1002573.
Acknowledgements
The authors are thankful to Jonas Elis, Lukas Fiege, Jakob Kemper, Antonia Velicu and Erik Wenker for research assistance. The authors are grateful to Julia Jerke, David Johann, and the two anonymous reviewers for their comments and helpful hints and to Sybille Hinze and Marion Schmidt for support in the second data collection. The authors are ordered alphabetically. Both authors contributed equally to the conception and design of the study, the data collection process, the analysis and interpretation of the data as well as writing and revising the manuscript. Justus Rathmann is funded by SNSF Starting Grant “CONCISE” (S-64408-01-01).
Author information
Authors and Affiliations
Corresponding author
Appendix
Appendix
Summary statistics
See Table 4.
Box plot of productivity per gender
See Fig. 3.
Bootstrapped t-test
See Table 5.
Regression tables
Whole count 90
See Table 6.
Whole count 10
See Table 7.
Chapter
Rights and permissions
About this article
Cite this article
Mayer, S.J., Rathmann, J.M.K. How does research productivity relate to gender? Analyzing gender differences for multiple publication dimensions. Scientometrics 117, 1663–1693 (2018). https://doi.org/10.1007/s11192-018-2933-1
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11192-018-2933-1