Investigation of Group Invariance in Test Equating Under Different Simulation Conditions


Inal H., ANIL D.

EURASIAN JOURNAL OF EDUCATIONAL RESEARCH, sa.78, ss.67-86, 2018 (ESCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: Konu: 78
  • Basım Tarihi: 2018
  • Doi Numarası: 10.14689/ejer.2018.78.4
  • Dergi Adı: EURASIAN JOURNAL OF EDUCATIONAL RESEARCH
  • Sayfa Sayıları: ss.67-86

Özet

Purpose: This study aimed to examine the impact of differential item functioning in anchor items on the group invariance in test equating for different sample sizes. Within this scope, the factors chosen to investigate the group invariance in test equating were sample size, frequency of sample size of subgroups, differential form of differential item functioning (DIF), frequency of items in the anchor test with differential item functioning, directionality of differential item functioning and mean differences in subpopulation ability levels.