Table 4.
Reliability analysis: corrected item-total correlation of the 8 items of the Malay-MCDAS f and Cronbach’s Alpha coefficients for 9–12 year-old children
| Mean (SD) | Corrected item-total correlation | Cronbach’s alpha if item deleted | |
|---|---|---|---|
| Dentist generally | 1.96 (0.98) | .310 | .72 |
| Teeth looked at | 2.23 (1.15) | .539 | .68 |
| Scraped and polished | 2.60 (1.28) | .473 | .69 |
| Injection in the gum | 3.90 (1.21) | .435 | .70 |
| Filling | 2.82 (1.36) | .499 | .68 |
| Tooth taken out | 3.63 (1.34) | .431 | .70 |
| DGA* | 2.15 (1.26) | .333 | .72 |
| RA* | 2.48 (1.40) | .353 | .72 |
| Alpha value | .73 | ||
| Standardised items alpha | .73 |
*DGA - Dental General Anaesthesia.
*RA – Relative Analgesia.