Table 4.
Goodness of fit statistics for models.
| # | Model | df | χ2 | RMSEA | 90% CI | CFI | TLI | α | NR α | NC α | W α |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ORIGINAL MASYC (12 ITEMS) | |||||||||||
| 1 | Univariate | 54 | 212.69 | 0.100 | 0.086–0.114 | 0.898 | 0.876 | 0.80 | |||
| 2 | 3-factor | 51 | 92.32 | 0.052 | 0.035–0.069 | 0.973 | 0.966 | 0.69 | 0.66 | 0.67 | |
| NEW FULL SCALE (17 ITEMS) | |||||||||||
| 3 | Univariate | 119 | 355.86 | 0.082 | 0.072–0.092 | 0.914 | 0.901 | 0.87 | |||
| 4 | 3-factor (item 11 on NR) | 116 | 180.57 | 0.043 | 0.031–0.055 | 0.977 | 0.972 | 0.78 | 0.66 | 0.81 | |
| NEW FULL SCALE WITH MISUNDERSTOOD AND MATH PROBLEM ITEMS REMOVED (MASYC-R; 13 ITEMS) | |||||||||||
| 5 | Univariate | 65 | 255.76 | 0.100 | 0.087–0.113 | 0.916 | 0.899 | 0.87 | |||
| 6a | 3-factor (item 11 on NR) | 62 | 98.16 | 0.044 | 0.027–0.060 | 0.984 | 0.980 | 0.76 | 0.75 | 0.80 | |
| 7 | 2-factor (NR and W combined) | 64 | 106.78 | 0.048 | 0.031–0.063 | 0.981 | 0.977 | 0.86 | 0.75 | ||
df, degrees of freedom; χ2, chi-square statistic; RMSEA, root mean square error of approximation; 90% CI, 90% confidence interval around the RMSEA; CFI, comparative fit index; TLI, Tucker-Lewis index; α, Cronbach's alpha; NR, Negative Reactions; NC, Numerical Confidence; W, Worry
a
Model 6 was identified as the final model.