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Table 5.55. Diversity calculations for Anasazi site types.a

Site Type Diversityb
Large structure 0.8217
Chacoan structure 0.6014
Great kiva 0.6957
Small structure 0.7840
Nonstructural 0.7934
aData for calculations from Table 5.42.
bThe diversity of tool types was calculated using a formula from Zar (1974):

fi=frequency of categories I (number of tools for each type in this case)
k=number of categories (8 tool types)
n=sample size (total number of tools recorded for a site group)

This formula measures evenness. If all the tool categories had the same quantity of tools in them the J score would be 1.0. See Reid (1982) and Kintigh (1984) for a more complete description.