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Table 1 Diagnostic characteristics and Youden J index to diagnose the presence of any disorder

From: Psychometric behaviour of the strengths and difficulties questionnaire (SDQ) in the Spanish national health survey 2006

SDQ cut pointa Sensitivity Specificity Youden J
12.50 0,898 0,740 0,638
13.50 0,833 0,787 0,620
14.50 0,773 0,821 0,594
15.50 0,713 0,859 0,572
16.50 b 0,652 0,887 0,539
17.50 0,648 0,905 0,553
18.50 0,645 0,926 0,571
19.50 c 0,613 0,941 0,554
  1. a Positive result if the score is ≥ at the specified cut point.
  2. b Cut point proposed by Rodriguez Hernández J [20].
  3. c Cut point proposed by Goodman [4].