Assessment of fit indicated that the final multilevel model fit the theoretical model well. The χ² was relatively small and nonsignificant (χ²=3.50, p=0.94). χ²/DF was 0.40 (below the recommended threshold of three), and all other fit indices indicated that the hypothesized model closely approximated the theoretical model. The obtained GFI and AGFI were greater than 0.9; the NFI and CFI were very close to one, indicating a very good model fit. When researchers added the predictor with the next highest correlation with TDS (external funding) to the model, its inclusion did not explain additional variance, nor did it improve model fit (χ²Final model =3.50; χ²External funding model = 5.21; see Figure A2 and Table A2 in the Appendix, p. 323). Therefore, the authors stopped model building and concluded that the model presented in Figure 1 was the best fitting model for TDS.