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Racine, Wisconsin, United States
We (my wife and I) are celebrating the 11th Anniversary of HAPLR, and more importantly, our 38th Anniversary. The HAPLR system uses data provided by 9,000 public libraries in the United States to create comparative rankings. The comparisons are in broad population categories. HAPLR provides a comparative rating system that librarians, trustees and the public can use to improve and extend library services. I am the director of Waukesha County Federated Library System.

Monday, April 6, 2009

Acing the LJ Index Course

There are four per capita factors to the LJ Index: Visits, Circulation, Attendance, Public Internet users. While it is true that these four factors tend to rise and fall together, it is not always so, of course.

A library could score the worst in three of the four, the best in the other, and thereby become a five star library. Therefore, a single factor can determine the outcome of an LJ Index rating. The LJ Index factors are not equally weighted. Fully 100% of the LJ Index weight could go to any of the four factors. That is curious, indeed.

Let me put this another way. Suppose you took a course and got three Fs and an A+ and then got an A+ for the course. Suppose this happened no matter which of the four parts of the course you got an A+ in? You would have to conclude that three of the four factors did not matter as long as you aced one of them.

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