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Large-scale Assessments in Education

An IERI – International Educational Research Institute Journal

Fig. 2 | Large-scale Assessments in Education

Fig. 2

From: Assessing the evidence for the comparability of socioeconomic status between students with and without immigrant background in Norway and Sweden

Fig. 2

DIF treatment approaches when quantifying the HOMEPOS–reading achievement relationship: a ignoring DIF; b deleting DIF items; c accounting for DIF. In this example, item I2 exhibited uniform DIF across 2ndGEN, 1stGEN and the reference groups; item I3 exhibited uniform DIF only between 2ndGEN and the reference group; item I22 exhibited non-uniform DIF between 1stGEN and the reference group. Ɣ1,2—the moderation effect of “HOMEPOS × 2ndGEN/1stGEN”. This allows us to report the HOMEPOS–reading achievement relationship for each group

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