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. Author manuscript; available in PMC: 2014 Dec 1.
Published in final edited form as: Psychol Assess. 2013 Dec;25(4):1332–1348. doi: 10.1037/a0034864

Figure 1.

Figure 1

Figure 1

Figure 1

Figure 1

Test information function for full-length and brief facet scales (left side) and relative efficiency for brief and scales (right side), where relative efficiency = proportion of information provided by brief scale relative to its full-length counterpart across trait levels θ.