HAPLR 2008 is featured in the October 2008 issue of American Libraries, a publication of the American Library Association. The ratings have been published there since 1999.
Hennen's American Public Library Ratings –HAPLR, identify the public libraries in America with the highest input and output measures. The HAPLR Index uses 6 input and 9 output measures. The author added the scores for each library within a population category to develop a weighted score. The population categories
change at 1,000, 2,500, 5,000, 10,000, 25,000, 50,000, 100,000, 250,000, and 500,000 residents.
The HAPLR Index is similar to an ACT or SAT score with a theoretical minimum of 1 and a maximum of 1,000, although most libraries score between 260 and 730.
The revised data can be found on this website in the Ratings section and at the American Libraries web site. This edition, published October 2, 2008, was delayed a year by the late release of the 2005 federal data. The next edition using 2006 data should be available in early 2009.
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