VantageScore® Solutions LLC polled risk professionals about how they are measuring score performance, and 60 percent of respondents said they are now using metrics beyond the Kolmogorov-Smirnov (KS) statistic value. One new metric is score consistency, which is defined as the ability to provide near-identical risk assessment of a consumer across multiple credit reporting agencies.
In other words, this means having confidence that when a consumer gets a 700 from one agency, he or she is likely to get a 700 from another agency. The other metric that risk managers referenced was stability, which is defined as the ability of a model to retain its predictive accuracy across an extended time frame.
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Source: VantageScore newsletter, April 2011
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