Re: Characteristic Analysis : Variable Stability

Posted by David Marso on May 04, 2015; 6:29pm
URL: http://spssx-discussion.165.s1.nabble.com/Characteristic-Analysis-Variable-Stability-tp5729471p5729486.html

"I want to understand the calculation for "Scoring Points". "
Sorry Ajjawal,
Please clarify what this has to do with SPSS.
It seems completely specific to the measuring instrument you are utilizing.
Consider the context of your question and that nobody here knows what you are working with.
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Ujjawal wrote

I developed a predictive attrition model based on logistic regression last year. I need to monitor model this year. I need to know whether the population has changed over time. Population stability Index is a very popular index in finance industry to measure it. This index shows population has changed over time. To understand what causes a shift in distribution, there is another index called characteristic analysis which checks variable distribution over time. It also tells if a variable changes by 10 points, how much scoring would be affected.
Characteristic Analysis = (Recent %-  Standard%) * Scoring Points
I want to understand the calculation for "Scoring Points".