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Case Lab · Type B · Intermediate

F90

Impulsive rule-breaking, or a conduct pattern?

A 9-year-old girl frequently blurts out answers, interrupts games, and grabs toys from other children without waiting her turn — behaviour present at school and at home since preschool. Her teacher notes she is not aggressive or defiant when corrected; she simply acts before thinking and is quick to apologise once she realises what she has done. There is no reported fighting, cruelty, stealing, or destructiveness.

What is the best-supported classification?