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National research assessment exercises: a measure of the distortion of performance rankings when labor input is treated as uniform

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Abstract

Measuring the efficiency of scientific research activity presents critical methodological aspects, many of which have not been sufficiently studied. Although many studies have assessed the relation between quality and research productivity and academic rank, not much is known about the extent of distortion in national university performance rankings when academic rank and the other labor factors are not considered as a factor of normalization. This work presents a comparative analysis that aims to quantify the sensitivity of bibliometric rankings to the choice of input, with input considered as only the number of researchers on staff, or alternatively where their cost is also considered. The field of observation consists of all 69 Italian universities active in the hard sciences. Performance measures are based on the 81,000 publications produced during the 2004–2006 triennium by all 34,000 research staff, with analysis carried out at the level of individual disciplines, 187 in total. The effect of the switch from labor to cost seems to be minimal except for a few outliers.

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Notes

  1. For the hard sciences, unlike the social sciences, arts and humanities, articles in international journals provide a good proxy of overall research output.

  2. Through a geographic proximity effect, concentration of public and private research organizations in a specific area can favor scientific collaboration and research productivity (Abramo et al. 2009b).

  3. Abramo et al. (2009b) demonstrate that publications in co-authorship with other organizations have a higher mean quality than those authored within a single institution. Since location affects opportunities for collaboration with other organizations it can thus have an effect on quality of output.

  4. On the subject of address reconciliation, Geuna and Martin (2003) report: “… The main problem consists in having to ‘clean up’ institutional addresses, a task that can take many person-years of effort”.

  5. At this time, for disambiguation of authorship of the 215,000 Italian academic publications indexed in the WoS between 2001 and 2007, the harmonic average of precision and recall (F-measure) is close to 95% (2% sampling error, 98% confidence interval). Further details are reported in Abramo et al. (2008a).

  6. The complete list is available at http://www.miur.it/atti/2000/alladm001004_01.htm.

  7. “Civil engineering and architecture” UDA was not considered because the WoS does not cover the full range of research output in this area.

  8. http://cercauniversita.cineca.it/php5/docenti/cerca.php.

  9. https://dalia.cineca.it/php4/inizio_access_cnvsu.php.

  10. The basic assumption of bibliometrics, e.g., the level of citation which corresponds to a quantum of research quality, has been criticized by few scholars (Warner, 2000). In this study though we are not interested in absolute ratings, but in switch of rankings when passing form labor input to cost input.

  11. The ISI subject categories are the scientific disciplines that the WoS uses for classification of articles.

  12. The rankings of the Italian peer-review VTR were carried out at the UDA level.

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Abramo, G., D’Angelo, C.A. & Solazzi, M. National research assessment exercises: a measure of the distortion of performance rankings when labor input is treated as uniform. Scientometrics 84, 605–619 (2010). https://doi.org/10.1007/s11192-010-0164-1

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