Do We Wait for the ADHD Diagnosis? Executive Function Intervention Matters. Before, During and Beyond an ADHD Diagnosis.

For many families, the journey towards an ADHD assessment can be long. Parents may spend months or years trying to understand why everyday routines feel so difficult. A child may know what they need to do but struggle to begin. A teenager may care deeply about school yet leave assignments until the last minute. An adult may be capable, creative and knowledgeable, but find that planning, organising and following through consistently takes an extraordinary amount of effort.

Often, the conversation begins with behaviours like not listening, forgetting, avoiding, interrupting, losing things, or not following through. These are the things other people can see. What is less visible is the process beneath them; managing attention, holding information in mind, getting started, regulating emotions, estimating time, shifting between tasks, and staying with a goal when the reward is not immediate.

Knowing what to do and doing it consistently are not always the same. Diagnosis can provide an explanation. Executive Function support can help turn understanding into action.

ADHD is not simply an attention problem

ADHD is a neurodevelopmental condition associated with patterns of inattention and/or hyperactivity-impulsivity that affect functioning. For many people, the day-to-day impact also shows up in Executive Functioning, the skills that help us manage ourselves and our actions as we pursue a goal.

Executive functions include working memory, inhibition, planning, organisation, task initiation, time management, emotional regulation, flexible thinking, and self-monitoring.

These skills work together, not in isolation. When one part of the process becomes difficult, the whole task can unravel.

A student who forgets the instructions may appear not to be listening. A teenager who cannot identify the first step may appear to be procrastinating. An adult who underestimates how long a task will take may appear unreliable, even when they genuinely intended to be on time.

Researchers such as Russell Barkley and Thomas E. Brown have helped shape influential ways of understanding the relationship between ADHD and Executive Functioning. Their work offers useful frameworks, but Executive Function difficulties are not unique to ADHD, and no single Executive Function profile defines every person with ADHD.

Why we need to change the conversation

When a person repeatedly struggles with the same demand, it is easy to interpret the difficulty as a lack of effort, motivation or care. That interpretation can lead to more reminders, more pressure and more consequences. Sometimes these responses increase stress without teaching the missing skill.

A more useful starting point is curiosity. Instead of asking only, “Why won’t they do it?”, we can ask, “What is making this difficult?” Is the task unclear? Is the first step too big? Is the person overwhelmed, tired or emotionally activated? Are there too many instructions to hold in mind? Is the time frame too abstract? Does the environment make it harder to concentrate?

Curiosity does not mean lowering expectations or excusing every behaviour. It means investigating what lies beneath the behaviour so we can pair expectations with effective support. When we understand the barrier, we can choose a response that builds capacity rather than simply repeating a demand.

Diagnosis and intervention are not the same thing.

A formal assessment matters. It can help clarify whether a person meets diagnostic criteria, explore other explanations, identify co-occurring needs and guide treatment or accommodations. If ADHD is suspected and difficulties affect everyday life, it's important to seek advice from a suitably qualified health professional.

But assessment and support don't have to be an either-or choice. We can start with practical, low-risk supports while a family waits for an assessment or considers next steps. For example, we can make instructions visible, break a task into manageable steps, use calendars and timers, create predictable routines, reduce unnecessary distractions and build in planned check-ins.

These strategies do not diagnose ADHD, and they are not a substitute for clinical assessment or appropriate treatment. They make everyday demands more manageable while we learn more about the person and what helps them.

Executive Function intervention matters after diagnosis.

A diagnosis can bring relief, validation and a clearer explanation of long-standing challenges. It may open doors to treatment, accommodations and a better understanding of personal needs. Yet receiving a diagnosis does not automatically teach someone how to plan an assignment, recover after becoming overwhelmed, estimate time, organise materials or move from intention to action.

Evidence-based ADHD care may include medication, psychological interventions, education, environmental adjustments and support for everyday functioning, depending on the person's needs and circumstances. Executive-function strategies can be part of a wider support plan. They are most useful when they are practical, individualised, and reviewed over tim,e not presented as a universal checklist that everyone should be able to follow.

The aim is not to make a person fit a system that continually works against them. It is to identify what helps them participate, learn, and work, while gradually developing strategies they can use more independently.

ADHD and Executive Function across the lifespan

Executive Function demands change as we grow. Young children need adult support to organise routines, regulate emotions and move between activities. At school, demands expand; children are expected to remember instructions, manage belongings, start work, and complete tasks with increasing independence. Adolescents face longer-term assignments, competing priorities, social pressures, and growing expectations to manage their own time.

For adults, Executive Function challenges may show up in work, household responsibilities, relationships, finances, or the invisible labour of keeping life organised. Some adults reach this stage without having recognised ADHD as a possible explanation for their experiences. Others have developed elaborate compensatory strategies that help them appear organised from the outside, while the effort required remains high.

The language of compensation and masking can help explain why some people’s difficulties are overlooked. However, we should not assume that every high-achieving or apparently organised person is masking ADHD. The important point is that outward performance alone does not always reveal the effort, stress or support behind it.

Support should therefore respond to the person’s developmental stage, strengths, environment, and goals. A strategy that works for a seven-year-old may not suit a seventeen-year-old or a forty-year-old. The underlying principle remains the same: make the process visible, practise the skill, and adjust the support as capacity and circumstances change.

What about the people who were missed?

ADHD has not always been recognised equally across genders, ages and presentations. Some people are referred because their behaviour is disruptive; others may be overlooked because their difficulties are less visible, because they work hard to compensate, or because their struggles are attributed to anxiety, stress or personality. Research has highlighted the under-recognition and underrepresentation of girls and women in ADHD research and diagnostic pathways.

This does not mean that every difficulty with organisation, motivation or attention is ADHD. Many factors can affect Executive Functioning, including learning differences, anxiety, sleep, stress, health and the demands of a particular environment. A careful assessment considers the broader picture, the person's developmental history and the impact across settings.

For someone who has spent years hearing that they are careless, disorganised, or not living up to their potential, a more compassionate explanation can mean a lot. It can also be a starting point for seeking appropriate assessment and support.

Executive Function is not a character trait.

Executive Function skills do not measure how much a person cares, how intelligent they are, or what kind of person they are. Performance can vary with context. A person may manage a task that is interesting, urgent, or supported, yet struggle with a task that is repetitive, ambiguous, or far away in time. They may perform well one day and find the same demand much harder when tired or overwhelmed.

This inconsistency can confuse families and educators. It can also lead to the assumption that a person is choosing not to try. A more accurate response is to notice patterns: When is the task easier? What is different about those situations? What support is already helping? What could change so success becomes more repeatable?

Sometimes the intervention is changing the environment

We often concentrate on teaching the individual to do more, remember more, plan better, resist distractions and manage time. Skill development matters, but so does the environment in which those skills are expected to operate.

External supports, visual instructions, checklists, reminders, accessible materials, quiet spaces, clear routines, shorter work periods, and predictable feedback can reduce what a person must hold in mind at once. These supports are not cheating or creating dependence. They can scaffold skill development and may remain useful tools in adult life.

A coaching approach can help a person notice what is happening, investigate barriers, generate options, experiment with strategies and reflect on what worked. The process is collaborative, rather than assuming one solution will suit everyone; the coach and client explore, test, and adapt. For children and young people, adults may need to provide substantial scaffolding first, then adjust it gradually as the young person develops skills and confidence.

Before diagnosis. After diagnosis. Beyond diagnosis.

Executive Function intervention is not a diagnosis, and it does not replace assessment or evidence-based ADHD care. It is a practical way to respond to real difficulties while keeping the person’s dignity, strengths and context in view.

If a child struggles to start homework, we can break the first step into smaller, clearer parts. If a teenager loses track of deadlines, we can build a visible planning system and practise using it. If an adult feels constantly behind, we can explore the demands on their attention, time and working memory and identify adjustments that make everyday life more manageable.

We don't need certainty before we become curious. We can notice the struggle, ask better questions and begin offering support while continuing to seek the right assessment and care when needed.

Diagnosis can provide an explanation. Executive Function intervention can help turn understanding into action.

To explore how executive function coaching could support your child, your teenager, or yourself, visit niceexecutivefunction.com or contact shyla.mathews@thenicemovement.com

References and further reading

Barkley, R. A. (1997). Behavioural inhibition, sustained attention, and executive functions: Constructing a unifying theory of ADHD. Psychological Bulletin, 121(1), 65–94. https://doi.org/10.1037/0033-2909.121.1.65

Barkley, R. A. (1997). ADHD and the nature of self-control. Guilford Press.

Brown, T. E. (2008). ADD/ADHD and impaired executive function in clinical practice. Current Psychiatry Reports, 10, 407–411. https://doi.org/10.1007/s11920-008-0065-7

CHADD. (n.d.). Executive functions. Children and Adults with Attention-Deficit/Hyperactivity Disorder. https://chadd.org/topics/executive-functions/

Hinshaw, S. P., Nguyen, P. T., O’Grady, S. M., & Rosenthal, E. A. (2022). Annual Research Review: Attention-deficit/hyperactivity disorder in girls and women: Underrepresentation, longitudinal processes, and key directions. Journal of Child Psychology and Psychiatry, 63(4), 484–496. https://doi.org/10.1111/jcpp.13480

National Institute for Health and Care Excellence. (2018; last updated 2023). Attention deficit hyperactivity disorder: Diagnosis and management (NICE Guideline NG87). https://www.nice.org.uk/guidance/ng87

Su, Z., Wang, Y., Wang, B., Han, C., Zhang, H., Gu, Y., Chen, Y., Zhao, X., & Shi, Y. (2025). Executive function and neural oscillations in adults with attention-deficit/hyperactivity disorder: A systematic review. Frontiers in Neuroscience, 19, 1617307. https://doi.org/10.3389/fnins.2025.1617307

Ostinelli, E. G., Schulze, M., Zangani, C., Farhat, L. C., Tomlinson, A., Del Giovane, C., Chamberlain, S. R., Philipsen, A., Young, S., Cowen, P. J., Bilbow, A., Cipriani, A., & Cortese, S. (2025). Comparative efficacy and acceptability of pharmacological, psychological, and neurostimulatory interventions for ADHD in adults: A systematic review and component network meta-analysis. The Lancet Psychiatry, 12(1), 32–43. https://doi.org/10.1016/S2215-0366(24)00360-2

Ren, Y., et al. (2026). A meta-analysis of the intervention effect of cognitive behavioural therapy on adult ADHD. Journal of Affective Disorders. https://doi.org/10.1016/j.jad.2025.121107

Editorial note: This article is for general educational purposes and is not a diagnostic tool or a substitute for individual clinical advice.