Table 4 Rasch item fit statistics of three overfitting and redundant items (comparison between GRSM and PCM)
GRSM | Item label | PCM | ||||||
|---|---|---|---|---|---|---|---|---|
INFIT | OUTFIT | Â | INFIT | OUTFIT | ||||
MNSQ | ZSTD | MNSQ | ZSTD | Â | MNSQ | ZSTD | MNSQ | ZSTD |
0.58 | −2.0 | 0.36 | −0.9 | hitch up trousers | 0.68 | −1.6 | 0.39 | −0.8 |
0.48 | −4.0 | 0.33 | −2.1 | place object above head | 0.48 | −3.9 | 0.33 | −2.1 |
0.39 | −1.5 | 0.05 | −1.5 | light switch | 0.35 | −1.6 | 0.05 | −1.5 |