Table 2.
Probability of grant success (based on a 2-tailed t test; ordinary least squares was used for analysis; N=52)a.
|
|
Model 1 | Model 2 | Model 3 | Model 4 |
| Number of years since doctoral degree, unstandardized coefficient (SE) | 0.08 (0.10) | 0.14 (0.10) | 0.08 (0.10) | 0.09 (0.10) |
| Female (no), unstandardized coefficient (SE) | 0.10 (0.09) | 0.09 (0.08) | 0.09 (0.09) | 0.08 (0.08) |
| Female (yes), unstandardized coefficient (SE) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| Nonuniversity institutions (no), unstandardized coefficient (SE) | −0.57b (0.09) | −0.50b (0.10) | −0.55b (0.09) | −0.54b (0.09) |
| Nonuniversity institutions (yes), unstandardized coefficient (SE) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| University rank (graduate)c, unstandardized coefficient (SE) | —d | — | 0.01 (0.09) | — |
| University rank (currently affiliated)c, unstandardized coefficient (SE) | — | — | −0.17 (0.11) | — |
| Total allocation in early stagee, unstandardized coefficient (SE) | — | 0.20 (0.11) | — | — |
| Number of coresearchers connected with through projects, unstandardized coefficient (SE) | -0.47f (0.19) | −0.49f (0.18) | −0.48f (0.19) | −0.32f (0.14) |
| Betweenness centralityg, unstandardized coefficient (SE) | 0.28 (0.24) | 0.38 (0.24) | 0.32 (0.24) | — |
| h-index of the researcher with whom the participant first became a project member, unstandardized coefficient (SE) | 0.19f (0.09) | 0.18f (0.09) | 0.13 (0.10) | 0.16 (0.08) |
| Number of papers, unstandardized coefficient (SE) | −0.16 (0.24) | −0.15 (0.24) | −0.22 (0.25) | — |
| Number of last-authored papers, unstandardized coefficient (SE) | 0.67h (0.24) | 0.55f (0.24) | 0.65f (0.24) | 0.65b (0.13) |
| F test (df) | 12.68b (8, 43) | 12.30b (9, 42) | 10.57b (12, 39) | 16.88b (6, 45) |
| Adjusted R2 | 0.647 | 0.666 | 0.652 | 0.651 |
| AICi | 954.178 | 952.072 | 954.918 | 951.888 |
aThe dependent variable was the sum of the highest amount allocated for each project number of projects obtained as principal investigator. This included Grant-in-Aid for Scientific Research (S), (A), (B), or (C); Grant-in-Aid for Specially Promoted Research; and Grant-in-Aid for Young Scientists (S) or (A).
bP<.001.
cThese variables were quantified based on The Times Higher Education World University Rankings 2023 and have 7 levels of classification, with a higher ranking having a smaller numerical value, that is, 1 for the top 100 ranking, 2 for 201 to 600, a value of 3 for 601 to 1000, a value of 4 for 1001 to 1200, a value of 5 for 1201 to 1500, a value of 6 for ≤1501, and 7 for out of ranking.
dVariables were not included in the model.
eThe total allocation earned as principal investigator during the first 10 years after obtaining a PhD.
fP<.05.
gThe Cytoscape software (version 3.4.0; Cytoscape Team) was used to calculate the value using people-to-people connections up to the third level starting from the participant based on the team member lists of all GIA projects throughout their career.
hP<.01.
iAIC: Akaike information criterion.