Table 3.
Model fit comparison of Bug-CDMs using the final Q-matrix.
| Bug-CDMs | Npars | Relative fit | Absolute fit | |||
|---|---|---|---|---|---|---|
| −2LL | AIC | BIC | Max zr | Max zl | ||
| Bug-DINO | 69 | 26126.38 | 26264.37 | 26610.83 | 4.1628 | 4.2254 |
| Bug-DINA | 69 | 26126.5 | 26264.49 | 26610.95 | 4.1191 | 4.2199 |
| Bug-GDINA | 133 | 25822.3 | 26088.3 | 26756.1 | 3.3777 | 3.4044 |
| Bug-RRUM | 91 | 25941.44 | 26123.44 | 26580.36 | 4.0201 | 3.9800 |
| Bug-ACDM | 91 | 25945.94 | 26127.95 | 26584.86 | 3.5097 | 3.5591 |
Critical z-score = 3.649, 4.044 for α = 0.05, 0.01, respectively (with the Bonferroni Correction) (Chen et al., 2013). Bold font indicates optimal fit values.