Table 3 Hypothesis testing.
Hypothesis | Relationship | UnStd. | S.E. | C.R. | p | Std.(β) | Results | ||
|---|---|---|---|---|---|---|---|---|---|
H2b | Betweenness centrality | → | Doctoral students’ h-index | 1.83 | 0.45 | 4.10 | <0.001 | 0.29 | Supported |
H3c | Student-mentor coauthorship count | → | Doctoral students’ h-index | 0.25 | 0.05 | 4.69 | <0.001 | 0.33 | Supported |
H3d | Doctoral students’ partnership ability index | → | Doctoral students’ h-index | 0.62 | 0.12 | 5.31 | <0.001 | 0.38 | Supported |
H4a | Mentors’ h-index | → | Closeness centrality | 0.01 | 0.00 | 3.03 | <0.01 | 0.19 | Supported |
H4b | Mentors’ h-index | → | Degree centrality | 0.01 | 0.00 | 2.40 | <0.05 | 0.10 | Supported |
H5a (3) | Doctoral students’ coauthor count | → | Degree centrality | 0.01 | 0.00 | 7.05 | <0.001 | 0.33 | Supported |
H5b (3) | Doctoral students’ coauthorship unit count | → | Degree centrality | 0.04 | 0.00 | 11.95 | <0.001 | 0.55 | Supported |
H5d (3) | Doctoral students’ partnership ability index | → | Degree centrality | 0.07 | 0.02 | 3.34 | <0.01 | 0.25 | Supported |
H6a | Degree centrality | → | Betweenness centrality | 0.96 | 0.05 | 19.08 | <0.001 | 1.01 | Supported |
H1a | Mentors’ h-index | → | Doctoral students’ h-index | 0.02 | 0.02 | 1.22 | 0.22 | 0.05 | Not Supported |
H1b | Mentors’ fecundity | → | Doctoral students’ h-index | 0.01 | 0.01 | 1.63 | 0.10 | 0.09 | Not Supported |
H2a | Closeness centrality | → | Doctoral students’ h-index | −0.35 | 0.59 | −0.59 | 0.56 | −0.02 | Not Supported |
H2c | Degree centrality | → | Doctoral students’ h-index | 0.54 | 0.55 | 0.97 | 0.33 | 0.09 | Not Supported |
H3a | Doctoral students’ coauthor count | → | Doctoral students’ h-index | −0.01 | 0.01 | −0.60 | 0.55 | −0.03 | Not Supported |
H3b | Doctoral students’ coauthorship unit count | → | Doctoral students’ h-index | 0.01 | 0.03 | 0.51 | 0.61 | 0.03 | Not Supported |
H5a (1) | Doctoral students’ coauthor count | → | Closeness centrality | 0.00 | 0.00 | 0.81 | 0.42 | 0.06 | Not Supported |
H5a (2) | Doctoral students’ coauthor count | → | Betweenness centrality | 0.00 | 0.00 | 1.50 | 0.13 | 0.06 | Not Supported |
H5b (1) | Doctoral students’ coauthorship unit count | → | Closeness centrality | 0.00 | 0.00 | 0.33 | 0.74 | 0.03 | Not Supported |
H5b (2) | Doctoral students’ coauthorship unit count | → | Betweenness centrality | −0.01 | 0.00 | −1.98 | <0.05 | −0.10 | Not Supported |
H5c (1) | Student-mentor coauthorship count | → | Closeness centrality | 0.00 | 0.01 | 0.27 | 0.79 | 0.03 | Not Supported |
H5c (2) | Student-mentor coauthorship count | → | Betweenness centrality | −0.02 | 0.01 | −2.74 | <0.01 | −0.17 | Not Supported |
H5c (3) | Student-mentor coauthorship count | → | Degree centrality | −0.03 | 0.01 | −2.78 | <0.01 | −0.21 | Not Supported |
H5d (1) | Doctoral students’ partnership ability index | → | Closeness centrality | 0.01 | 0.01 | 0.94 | 0.35 | 0.11 | Not Supported |
H5d (2) | Doctoral students’ partnership ability index | → | Betweenness centrality | −0.04 | 0.02 | −2.67 | <0.01 | −0.17 | Not Supported |
H6b | Closeness centrality | → | Betweenness centrality | −0.09 | 0.08 | −1.06 | 0.29 | −0.04 | Not Supported |
