In the statistical literature, for ordinal types of data, are known lots of indicators to measure the degree of the polarization phenomenon. Typically, many of the widely used measures of distributional variability are defined as a function of a reference point, which in some “sense” could be considered representative for the entire population. This function indicates how much all the values differ from the point that is…Continue
Added by Ludovico Pinzari on June 17, 2019 at 11:54pm — No Comments
The analysis and classification of ordinal categorical data are central in most scientific domains and ubiquitous in governments and businesses.
Examples of ordinal data are either found in questionnaires for measuring opinions or self-reported health status. A well-known example of ordinal data is the Likert Scale 
(DISLIKE = 1, DISLIKE SOMEWHAT…Continue
Added by Ludovico Pinzari on June 1, 2019 at 3:35pm — No Comments
In business, we often implement programs and then try to determine if the program had an impact. This is an example of program evaluation where, more generally, program evaluation is a study conducted with the intent of determining how effective a given intervention (program) is at achieving a specific outcome.
What types of programs? That could be a cross-sell program, customer retention program, new advertising method etc.
Is this just A/ B testing? A/B testing is a great…Continue
Added by Howard Friedman on June 20, 2018 at 3:02am — No Comments
When I was a kid there was a popular movie quote going around, "Love means never having to say you're sorry" which was the basis behind this T-shirt my wonderful mother got me. It means very different things to different people, "Statistics means never having to say you’re certain”. I like the shirt, but these differences are very…Continue
Added by Scott Burk on January 21, 2017 at 9:30am — No Comments