Results of logistic regression for UPRL of FP-funded publications, 2008–2016: alternative specifications (source: Scopus and Overton)
| Variable . | Logistic regression for variables in level Models for one standard deviation . | |||||
|---|---|---|---|---|---|---|
| UK base Model 3 . | EU Model 4 . | EU nonUK Model 5 . | UK_a Model 6 . | UK_b Model 7 . | UK_c Model 8 . | |
| Normalized citation score | 0.613*** (0.043) | 0.604*** (0.022) | 0.655*** (0.028) | 0.615*** (0.043) | 0.618*** (0.043) | 0.612*** (0.043) |
| Normalized CiteScore | 0.207*** (0.029) | 0.146*** (0.015) | 0.101*** (0.021) | 0.208*** (0.029) | 0.209*** (0.029) | 0.208*** (0.029) |
| Document type (Review = 1) | 0.507*** (0.096) | 0.722*** (0.054) | 0.813*** (0.071) | 0.489*** (0.095) | 0.497*** (0.095) | 0.510*** (0.096) |
| Multidisciplinary (DDA) | 0.129*** (0.031) | 0.101*** (0.016) | 0.065*** (0.021) | 0.142*** (0.029) | 0.132*** (0.032) | |
| Interdisciplinarity (DDR) | 0.032 (0.041) | 0.021 (0.021) | 0.015 (0.025) | 0.088** (0.038) | 0.014 (0.042) | |
| Number of authors | −0.780*** (0.176) | −0.635*** (0.076) | −0.008 (0.018) | −0.768*** (0.174) | −0.776*** (0.175) | −0.775*** (0.176) |
| Number of countries | 0.279*** (0.040) | 0.251*** (0.018) | 0.106*** (0.017) | 0.277*** (0.040) | 0.295*** (0.040) | 0.276*** (0.040) |
| Proportion of female authors | 0.033 (0.031) | 0.021 (0.016) | 0.022 (0.020) | 0.03 (0.031) | 0.031 (0.031) | 0.032 (0.031) |
| Avg. number of papers per author | 0.115*** (0.039) | 0.052*** (0.020) | 0.035 (0.025) | 0.119*** (0.039) | 0.101*** (0.039) | 0.118*** (0.039) |
| Fewer than 2 authors | −0.592* (0.305) | |||||
| (Fewer than 2 authors) * DDR | 0.230* (0.120) | |||||
| Observations | 37,897 | 137,419 | 99,522 | 38,426 | 37,897 | 37,897 |
| Log Likelihood | −3,754.04 | −12,927.03 | −7,756.73 | −3,793.02 | −3,762.98 | −3,752.12 |
| Wald Test | 528.910*** (df = 9) | 1,836.020*** (df = 9) | 1,004.670*** (df = 9) | 534.920*** (df = 8) | 510.950*** (df = 8) | 532.400*** (df = 11) |
| LR Test | 730.702*** (df = 9) | 2,473.643*** (df = 9) | 1,413.255*** (df = 9) | 738.604*** (df = 8) | 712.811*** (df = 8) | 734.541*** (df = 11) |
| Score (Logrank) Test | 766.147*** (df = 9) | 2,714.351*** (df = 9) | 1,410.890*** (df = 9) | 777.312*** (df = 8) | 748.805*** (df = 8) | 769.708*** (df = 11) |
| Variable . | Logistic regression for variables in level Models for one standard deviation . | |||||
|---|---|---|---|---|---|---|
| UK base Model 3 . | EU Model 4 . | EU nonUK Model 5 . | UK_a Model 6 . | UK_b Model 7 . | UK_c Model 8 . | |
| Normalized citation score | 0.613*** (0.043) | 0.604*** (0.022) | 0.655*** (0.028) | 0.615*** (0.043) | 0.618*** (0.043) | 0.612*** (0.043) |
| Normalized CiteScore | 0.207*** (0.029) | 0.146*** (0.015) | 0.101*** (0.021) | 0.208*** (0.029) | 0.209*** (0.029) | 0.208*** (0.029) |
| Document type (Review = 1) | 0.507*** (0.096) | 0.722*** (0.054) | 0.813*** (0.071) | 0.489*** (0.095) | 0.497*** (0.095) | 0.510*** (0.096) |
| Multidisciplinary (DDA) | 0.129*** (0.031) | 0.101*** (0.016) | 0.065*** (0.021) | 0.142*** (0.029) | 0.132*** (0.032) | |
| Interdisciplinarity (DDR) | 0.032 (0.041) | 0.021 (0.021) | 0.015 (0.025) | 0.088** (0.038) | 0.014 (0.042) | |
| Number of authors | −0.780*** (0.176) | −0.635*** (0.076) | −0.008 (0.018) | −0.768*** (0.174) | −0.776*** (0.175) | −0.775*** (0.176) |
| Number of countries | 0.279*** (0.040) | 0.251*** (0.018) | 0.106*** (0.017) | 0.277*** (0.040) | 0.295*** (0.040) | 0.276*** (0.040) |
| Proportion of female authors | 0.033 (0.031) | 0.021 (0.016) | 0.022 (0.020) | 0.03 (0.031) | 0.031 (0.031) | 0.032 (0.031) |
| Avg. number of papers per author | 0.115*** (0.039) | 0.052*** (0.020) | 0.035 (0.025) | 0.119*** (0.039) | 0.101*** (0.039) | 0.118*** (0.039) |
| Fewer than 2 authors | −0.592* (0.305) | |||||
| (Fewer than 2 authors) * DDR | 0.230* (0.120) | |||||
| Observations | 37,897 | 137,419 | 99,522 | 38,426 | 37,897 | 37,897 |
| Log Likelihood | −3,754.04 | −12,927.03 | −7,756.73 | −3,793.02 | −3,762.98 | −3,752.12 |
| Wald Test | 528.910*** (df = 9) | 1,836.020*** (df = 9) | 1,004.670*** (df = 9) | 534.920*** (df = 8) | 510.950*** (df = 8) | 532.400*** (df = 11) |
| LR Test | 730.702*** (df = 9) | 2,473.643*** (df = 9) | 1,413.255*** (df = 9) | 738.604*** (df = 8) | 712.811*** (df = 8) | 734.541*** (df = 11) |
| Score (Logrank) Test | 766.147*** (df = 9) | 2,714.351*** (df = 9) | 1,410.890*** (df = 9) | 777.312*** (df = 8) | 748.805*** (df = 8) | 769.708*** (df = 11) |