Table 1: Discriminant validity: rank correlations between DMFT, malocclusion (MO) index scores, and subscale scores (English)

				DMFT		MO
OS_E		R		0.342*		0.415*
		p-value		0.05		0.016
FL_E		R		0.013		0.522**
		p-value		0.943		0.002
EW_E		R		0.021		0.336
		p-value		0.905		0.056
SW_E		R		0.101		0.334
		p-value		0.574		0.057
SE_E		R		0.167		0.311
		p-value		0.352		0.079
PW_E		R		–0.012		–0.191
		p-value		0.949		0.287
Total		R		0.199		0.544**
		p-value		0.267		0.001

**Correlation is significant at the 0.01 level (2-tailed); *Correlation is significant at the 0.05 level (2-tailed)