Cite
MLA Citation
Yong Luo and Xinya Liang. “Simultaneously Modeling Differential Testlet Functioning and Differential Item Functioning: Addressing Variance Heterogeneity with a Multigroup One-Parameter Testlet Model.” Measurement, vol. 17, no. 2, 2019, pp. 93–105. http://access.bl.uk/ark:/81055/vdc_100085338718.0x00001c