| http://www.w3.org/ns/prov#value | - The IALS methodology is based in large part on a number of nation- al predecessors, such as the 1993 U.S. National Adult Literacy Survey (Kirsch et al., 1993), which invested significant resources in improving the technical and psychometric properties of literacy assessment instruments, using a variety of techniques, including methods for expanding the range of items used in a survey format, inclu
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