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Table 6 Discriminant validity of Malay ECOHIS through comparison of mean Malay-ECOHIS scores and respective sub-scales by caries status

From: The Malay version of the Early Childhood Oral Health Impact Scale (Malay-ECOHIS) – assessing validity and reliability

M-ECOHIS Caries Caries-free p-value* Cohen’s da % Floor % Ceiling
Mean (SD) Mean (SD) (0 score) (max score)
Child impact section 13.1 (4.00) 12.17 (4.78) <0.001 0.21 27.0 0.1
Family impact section 5.35 (2.01) 4.85 (2.18) <0.001 0.24 58.4 0.2
Overall score 18.44 (5.39) 17.00 (6.46) <0.001 0.24 21.6 0
  1. SD standard deviation
  2. *Mann-Whitney statistics
  3. a0.21 < d < 0.24 = small effect size respectively