• Mathematics
  • Published 2008

Effect of Unequal Sample Sizes on the Power of DIF Detection: An IRT-Based Monte Carlo Study with SIBTEST and Mantel-Haenszel Procedures

@inproceedings{Awuor2008EffectOU,
  title={Effect of Unequal Sample Sizes on the Power of DIF Detection: An IRT-Based Monte Carlo Study with SIBTEST and Mantel-Haenszel Procedures},
  author={Risper Akelo Awuor},
  year={2008}
}
The power of SIBTEST procedure for DIF detection is substantially affected by small differences in parameters under study. Differences in sample sizes have also been reported to affect the power of the procedure for DIF detection. On the basis of the information reported in previous studies regarding the statistical power and Type I error rate of SIBTEST procedure, this simulation study investigated the effect of unequal sample sizes in the reference and focal groups on the detection of a… CONTINUE READING

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