Adaptive measurement of individual change

Gyenam Kim-Kang, David J. Weiss

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


Adaptive measurement of change (AMC) was investigated by examining the recovery of true change. Monte Carlo simulation was used to compare three conventional testing (CT) methods with AMC. The CTs estimated individual change moderately well when the test was highly discriminating and when the θ level matched the test difficulty. However, AMC measured individual change equally well across the entire range of ft AMC with more discriminating items produced the most precise estimates of individual change. AMC was shown to be superior to CTs under all conditions examined. In addition, AMC is efficient - it can dramatically reduce the number of items necessary to measure individual change. The results indicate that AMC is a viable and effective method for measuring individual change.

Original languageEnglish (US)
Pages (from-to)49-58
Number of pages10
JournalJournal of Psychology
Issue number1
StatePublished - 2008


  • Computerized adaptive testing
  • Difference score
  • Item response theory
  • Measuring change
  • Residual change score


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