Long 1993.

Methods	Allocation:randomised. Blinding : teacher/raters were blinded. Controls: no treatment other than the methylphenidate that both groups received.
Participants	Families of children aged 6‐11, 26 boys 6 girls with AD/HD. N = 32.
Interventions	2 groups: *1‐ Booklet of behavioural management advice in addition to methylphenidate (n = 17); TT = nil. 2‐ Methylphenidate only (n = 15) as controls, TT = nil.
Outcomes	Intensity and frequency of behavioural problems at home and at school using standardised measures.
Notes	High attrition rate: 4 (24%) in treatment group and 6 (40%) in control group, yielding a total of 10 (31%) participants. Independent raters were teachers.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear