Keep boundaries clear and calm
Very low certaintyADHD evidence
Make rules your child can understand; respond the same way, without escalating.
Start with the time you have
1 minute
Say one calm, concrete boundary out loud: 'I will help you, and I will not let anyone get hurt.'
5 minutes
Choose one repeated conflict and decide how to explain the expectation in simple words.
15 minutes
Discuss one rule and a proportionate response with your child, then check that they understand.
How sure the science is
Very low certainty, ADHD evidence
- We barely know.
- Small or short trials, and people knew what they were getting.
- The true effect could be much smaller, or zero.
- Measured in people with ADHD.
- 13 trials
- 1439 people
- children and teens
- parent rated
- about 12 weeks
- measured on oppositional symptoms (ODD)
Explicit NICE parenting recommendation; EBI oppositional-symptom estimate is for full parent-mediated programmes.
The number, drawn
Use clear rules and consistent responses
Why it matters
- NICE supports clear, appropriate rules and consistent responses for children with ADHD.
- Full parent-mediated programmes gave a small improvement in parent-rated oppositional symptoms near 12 weeks, SMD 0.249, but EBI certainty was very low.
- That result belongs to the whole programme, not any particular consequence, and whether the benefit lasts is uncertain.
How to do it
- Agree a small number of rules everyone can understand, at a calm moment.
- Explain ahead of time what a proportionate response will be. Keep the words brief and calm.
- Watch for confusion or overwhelm, and help your child practise what's expected.
- Avoid physical punishment, humiliation or withholding basic needs.
- Ask for professional help if family conflict or aggression is escalating.
Putting it into practice
In real life
- Agree beforehand that a shared game pauses if someone starts hitting.
- Say what is expected in a short sentence, then allow time to process it.
Watch out for
- Common mistakeChanging the rule in anger makes it harder to understand, so return to the agreed expectation.
- Common mistakeTreating confusion as defiance can escalate things. Check they understood, and offer help.
Trusted guides
How we rated it
- Evidence grade
- A Moderate or high certainty evidence in people with ADHD, or an explicit ADHD guideline recommendation.
- The number
- Use clear rules and consistent responses (NICE, public HSC Northern Ireland copy, 2018)
- Benefit
- 41/100 An editorial priority for the general list, weighted by certainty. It does not predict what will happen for you.
- Effort
- Some effort
Sources
- Tier 1 guidelineADHD: diagnosis and management, NG87, information and supportNICE, public HSC Northern Ireland copy, 2018
- Tier 1 guidelineAttention, activity, emotions, and behaviour (undated)Berkshire Healthcare NHS Foundation Trust, 2026
- Tier 1 guidelineEBI-ADHD umbrella review: re-estimated dataset, commit 86eff22a9ffbGosling et al., BMJ accompanying open data, 2025
- Tier 1 guidelineBenefits and harms of ADHD interventions: umbrella review and platform for shared decision makingBMJ, full text via PMC, 2025
- General information about ADHD, not a diagnosis or an individual treatment plan.
- Tailoring changes the order of suggestions; it does not assess you.
- Medication decisions belong with you and a qualified clinician.