The 'Si' is a substantial quantitative index for studying the significance of drainage in the development of landforms and valuable for Geomorphologists, Hydrologists, and Geologists.
A substantial modification index connected to a scale should initiate substantive reconsideration of all the items comprising that scale.
Or suppose a substantial modification index appeared for the covariance between the errors on y5 and y6.
The only way a fixed measurement error variance on a single-indicator contributes to model ill fit, or has a substantial modification index, is if that measurement error variance would be "identified if freed".
It is preferable to view a substantial modification index for an error covariance on indicators like y5 and y6 as indicating the constraints in some portion of the model are incompatible with the constraints specifying y5 and y6 as originating in the common cause η3B.
These indices indicate that this model has substantial predictive power.
Consequently, for all three indices, substantial indicates a minimum two-unit decline.
Over five years, the outperformance is more substantial, with the Janney index up almost 60% compared with a 21.5% rise in the MSCI World Index.
That helps explain why Goldman has been forecasting a year-end close of 1,250 for the Standard & Poor's 500-stock index, a substantial 13 percent decline from the index's Monday level of 1,418.
Investors can save themselves substantial fee money buying index funds on growth and value segments of the market.
