Table 3.
Descriptive statistics of the SPSQ items, correlations to composite score and between items and standard errors of items from the bi-factor model.
| M | SD | Skewness | Kurtosis | ITC | IIC | SE (SS) | SE (GS) | |
|---|---|---|---|---|---|---|---|---|
| Sensory Sensitivity Items | ||||||||
| SPSQ 1 (S) | 4.45 | 2.46 | −0.32 | −0.18 | 0.60 | 0.44 | 0.022 | 0.022 |
| SPSQ 2 (S) | 4.94 | 2.53 | −0.29 | −0.23 | 0.68 | 0.43 | 0.020 | 0.021 |
| SPSQ 3 (S) | 5.05 | 2.47 | −0.21 | −0.06 | 0.67 | 0.43 | 0.019 | 0.023 |
| SPSQ 4 (S) | 4.81 | 2.30 | −0.33 | 0.33 | 0.73 | 0.43 | 0.017 | 0.022 |
| SPSQ 5 (S) | 4.83 | 2.31 | −0.33 | 0.37 | 0.71 | 0.43 | 0.020 | 0.021 |
| SPSQ 6 (S) | 4.77 | 2.32 | −0.18 | 0.12 | 0.58 | 0.44 | 0.023 | 0.021 |
| SPSQ 7 (S) | 5.32 | 2.39 | −0.27 | 0.07 | 0.64 | 0.44 | 0.022 | 0.021 |
| SPSQ 8 (S) | 5.40 | 2.55 | −0.13 | −0.30 | 0.60 | 0.44 | 0.023 | 0.021 |
| Other Sensitivity Items | ||||||||
| SPSQ 1 (O) | 5.44 | 2.31 | −0.13 | 0.03 | 0.69 | 0.43 | 0.030 | 0.023 |
| SPSQ 2 (O) | 5.11 | 2.16 | −0.24 | 0.28 | 0.63 | 0.44 | 0.030 | 0.027 |
| SPSQ 3 (O) | 5.36 | 2.21 | −0.19 | 0.22 | 0.71 | 0.43 | 0.029 | 0.018 |
| SPSQ 4 (O) | 5.23 | 2.30 | −0.20 | 0.19 | 0.70 | 0.43 | 0.030 | 0.019 |
| SPSQ 5 (O) | 5.15 | 2.29 | −0.23 | 0.13 | 0.64 | 0.43 | 0.031 | 0.018 |
| SPSQ 6 (O) | 5.45 | 2.30 | −0.24 | 0.17 | 0.66 | 0.43 | 0.030 | 0.016 |
| SPSQ 7 (O) | 6.04 | 2.39 | −0.32 | 0.07 | 0.67 | 0.43 | 0.032 | 0.016 |
| SPSQ 8 (O) | 5.49 | 2.18 | −0.20 | 0.61 | 0.68 | 0.43 | 0.032 | 0.017 |
Note: ITC, corrected item–total correlation corrected for overlap of item; IIC, inter-item correlation; SE = standard error; GS = General Sensitivity factor; SS = Sensory Sensitivity factor; O = Other Sensitivity factor; M = mean; SD = standard deviation.