id author title date pages extension mime words sentence flesch summary cache txt crl-15563 O’Connor, Lisa G.; Radcliff, Carolyn J.; Gedeon, Julie A. Applying Systems Design and Item Response Theory to the Problem of Measuring Information Literacy Skills 2002-11-01 16 .pdf application/pdf 8569 422 55 Skill items were considered reliable if more than 50 per- cent and less than 90 percent of respon- dents answered items correctly. CTT is best suited for traditional testing situa- tions in which all members of the target population are administered the same or parallel sets of test items (e.g., classroom testing). cache/crl-15563.pdf txt/crl-15563.txt