PSQ [31] assesses symptom severity for DICCD and ADHD, and consisted of 48 items and 6 subscales: Conduct problem (12 items), Difficulties in learning (4 items), Psychosomatic disorders (5 items), Impulsivity/Hyperactivity (4 items), Anxiety (4 items) and Conners Index of Hyperactivity (CIH) (10 items). Each item requires a rating one a 4-point scale: from 0 = not true at all to 3 = very much true. Scores were converted to T scores based on sex and age of the child, with a score of > 65 indicating clinically elevated symptoms [32].
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