Dr. Saoirse Mac Cárthaigh, Educational & Child Psychologist

Dr. Saoirse Mac Cárthaigh, Educational & Child Psychologist

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Educational and child psychologist specialising in autism diagnostic assessments.

Photos from Dr. Saoirse Mac Cárthaigh, Educational & Child Psychologist's post 05/07/2026

These are among the most common worries parents carry — often while quietly bracing for bad news. Nearly always, what they describe is ordinary child development doing exactly what it should.

Seven things parents worry about that psychologists usually don’t:

1. Counting on fingers. Fingers are the brain’s first number line, and research links using them to stronger number sense (Berteletti & Booth, 2015). Children set them aside on their own.

2. Not telling the time yet. Reading a clock bundles fractions, counting in fives and spatial reasoning — most children only master it between 5 and 8.

3. Mixing up left and right. One of the slowest spatial skills there is. About half of 11-year-olds still can’t judge it on a person facing them (Dellatolas et al., 1998).

4. Needing instructions repeated. Working memory is under construction right through the primary years. Repetition is scaffolding, not failure.

5. Needing to move while learning. For many children, movement supports attention rather than stealing it. The learning is still landing.

6. Not lasting a long dinner. Young attention runs in minutes, not courses. A child slipping off early is a child being exactly their age.

7. Saying ‘I’m bored’. Boredom is the runway for imagination — studies find it nudges children into creative, self-directed play (Mann & Cadman, 2014).

Every one of these is typical on its own. It’s when several persist together — across home and school, well past the usual ages — that a closer look helps. That’s what an assessment untangles.

Send this to a parent who’s worrying about the normal.

04/07/2026

Your child writes their name beautifully — except the b is a d, again. Before you google anything: this is one of the most normal parts of learning to write.

Reversing letters and numbers — b for d, p for q, a backwards 3 — typically fades on its own by around age 7. And before that age, it is not usually dyslexia.

Why does it happen? Because everything else in their world stays itself when it flips. A cup is still a cup. A chair is still a chair. Letters are the odd ones out — turn b around and it becomes a different letter entirely. Their brain just needs time to learn that direction suddenly matters.

What helps:

The ‘bed’ trick — the word makes its own bed. If it still spells bed, the letters are the right way round.

Bat, then ball — when writing b, the bat (the line) comes first, and it is always on the left.

One at a time — master b completely before d ever appears. Teaching mirror pairs together feeds the confusion.

Turn it into play — letter hunts on the cereal box, tracing letters on each other’s backs, squishy playdough letters. The same games work for flipped numbers too.

Still happening often past 7 or 8, especially alongside trouble with rhyming or sounding out words? That’s worth a chat with their teacher or a psychologist. Until then — keep it light. It usually sorts itself out.

Save this for the next time a backwards b appears — or send it to a parent who needs the reassurance.

Photos from Dr. Saoirse Mac Cárthaigh, Educational & Child Psychologist's post 03/07/2026

Almost no one keeps the screen-time rules for under-fives. Only about 1 in 4 families do — so if that’s not you, you are in very good company.

Here is what the leading bodies actually advise. Under 2: none at all, bar the odd video call. Ages 2 to 5: up to about an hour a day of good content, watched together. And less is always better. (WHO, 2019; American Academy of Pediatrics.)

Why so cautious? It’s less about the screen itself and more about what it quietly replaces. Little ones learn language, focus and feelings from back-and-forth moments with you — and one 2024 study linked the average three-year-old’s screen time to around 1,100 fewer words heard a day (Brushe et al., JAMA Pediatrics).

But here is the honest part: most children land at two to three hours a day, and nearly half of parents reach for a screen just to get through a tantrum. These numbers are an ideal, not a scorecard. So rather than chase perfect, here is what genuinely helps.

For your child —

Swap, don’t sn**ch. Keep a boredom box (stickers, playdough, a puzzle) ready, so turning the screen off has an obvious ‘yes’ waiting.

Guard two windows. If you protect only two, make them mealtimes and the hour before bed — when screens most crowd out talking and sleep.

Watch together, and make it the telly, not a tablet. A shared screen invites you to watch along and chat about it; a phone or iPad is a solitary world of one.

For you —

Your own screen time matters too, because children copy us and our phones quietly cut the conversation. The trick isn’t willpower, it’s friction: delete the worst app, set a 50-character password then log out, switch to greyscale, bury the icon on the last page, and charge the phone in another room.

Less and better, not perfect. Sometimes the screen is what gets the dinner made — and that’s completely fine. One less hour is a win worth having.

02/07/2026

Does your child muddle up left and right? They’re in good company. It’s one of the slowest spatial skills to develop — and plenty of adults still get caught out too.

Here’s the reassuring bit: most children only know left and right on their own body at around 5 to 7. Doing it on someone facing them, where everything flips, is much harder. In one classic study, about half of eleven-year-olds still couldn’t manage that reliably (Dellatolas et al., 1998).

So it’s not a race. But you can gently help it along, woven into ordinary days:

Trick 1 — The ‘L’ trick. Hold up both hands, fingers together and thumbs out. Only the left hand makes a proper letter ‘L’. A quick check they can do anywhere.

Trick 2 — Give one wrist a clue. A watch, a band, a tiny dot: ‘your watch hand is your left.’ A cue they can see beats one they have to remember.

Trick 3 — Name it all day. ‘Left foot in your left welly’, ‘turn left at the shop.’ Tied to doing and repeated often, it sinks in fastest.

Trick 4 — Make it a game. Simon Says (‘left hand on your head’), copy-the-dance. Movement locks direction into the body.

The golden rule: start with their own body. Reading left and right on other people comes years later, so don’t rush it.

And if they still mix it up? Keep it light. Around one in three adults do too — it clicks in time.

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Photos from Dr. Saoirse Mac Cárthaigh, Educational & Child Psychologist's post 01/07/2026

You ask them to put on their shoes, grab their bag, and wait by the door. Two minutes later they’re standing there with one shoe on and the bag nowhere in sight. Sound familiar?

Following multi-step instructions is a genuine skill — and a workout for working memory. Your child has to hold each step in mind while doing the last. Like any skill, it grows with practice, and you can fold that practice into the day you already have.

Way 1 — Run the getting-ready list. Every trip out the door is a ready-made sequence. Give the whole run at once: shoes on, coat on, bag by the door.

Way 2 — Turn tidy-up into a sequence. Swap a vague ‘tidy up’ for an ordered mission: books first, then blocks, then cars. The room still gets sorted.

Way 3 — Let them lead the wind-down. Hand them the bedtime routine they know by heart. Ask ‘what’s next?’ instead of telling: pyjamas, teeth, then a story.

Way 4 — Send them to a treat. Pop a treat in a drawer, then talk them to it with one detailed instruction: ‘Go to the living room, open the third drawer down, and look in the red box.’ They have to hold all three to claim it.

The golden rule: start small. Two steps, or even one for the littlest, and add the next when they can hold it without a reminder. Every child’s pace is different, and that’s perfectly normal.

One last trick: before they dash off, ask them to repeat the steps back to you. Saying it out loud locks it in. Keep it light and a little silly — it should feel like a game, never a test.

Photos from Dr. Saoirse Mac Cárthaigh, Educational & Child Psychologist's post 30/06/2026

Reading an analogue clock is a bigger skill than it looks. Most children get there between the ages of 5 and 8, and it builds slowly — so if it hasn't clicked yet, this post might help.

The good news: you don't need formal lessons. A handful of small habits, woven into everyday life, do most of the work. Five that help:

Give them their own watch. Put an analogue watch on their wrist and give them a reason to check it: 'You can collect your treat at 4 o'clock.' The waiting does the teaching.

Start with the little hand. The hour hand alone tells you most of the time — teach 'it's a bit after 3' long before you tackle minutes. (Hour is the shorter word, and the shorter hand.)

Tie it to their routine. Connect times to things they care about — bath at 7, school at 9 — so the clock starts to mean something.

Past on the right, to on the left. Split the face in two: the right side counts past the hour, the left side counts to the next one.

Catch the clock's trick. As it nears the hour, the little hand creeps up to the next number — so 3:55 can look like it has gone 4, when the hour is still 3. Make a game of spotting it.

Little and often beats a big lesson. Point the time out as you go, keep it light, and let curiosity do the rest.

Know a parent whose child is wrestling with the clock? Send this their way.

29/06/2026

You're teaching your child to put on a t-shirt. You guide them through the first few steps, then finish it off yourself because they've had enough. Sound familiar?

Backward chaining flips that. You do every step except the last, and your child completes the final one themselves. So they finish the task — and feel that small hit of success — every single time. Then you hand over the second-to-last step, then the one before, working backwards until they can do the whole thing.

Why it works: ending on a win is motivating. Rather than running out of steam in the tricky early steps, your child gets the satisfaction of "I did it" at the end of every attempt. That feeling is what pulls them back to try again.

How to start:

Break the skill into small steps
Do all but the last step for them
Let them complete the final step themselves
Once they've mastered it, hand over the step before

It's brilliant for dressing, shoes, handwashing and teeth — and especially for skills a child tends to give up on, for younger children, and for anything brand new.

It isn't the only way, either. Forward chaining — teaching the first step first — suits skills where the early steps are the easy, rewarding ones. Match the method to the task.

Backward chaining is a long-established teaching approach in occupational therapy and education, well supported for building everyday self-care skills.

Save this for the next stand-off over a stuck zip.

Photos from Dr. Saoirse Mac Cárthaigh, Educational & Child Psychologist's post 29/06/2026

We tend to talk about autism, ADHD, intellectual disability and specific learning difficulties as separate boxes. In children, they overlap far more often than chance would predict.

Some rough figures from the research: around 4 in 10 autistic children also have ADHD, and around 3 in 10 also have an intellectual disability (Micai et al., 2023). Around 3 in 10 children with a specific learning difficulty — dyslexia, dyscalculia or dysgraphia — also have ADHD.

Why? These are all neurodevelopmental. They share genes, brain development and underlying differences in attention, memory, processing and regulation. The same wiring simply shows up in different ways.

One distinction worth holding onto: an intellectual disability is global, touching learning and reasoning broadly, while a specific learning difficulty is specific, showing up in particular skills such as reading or maths. They describe different things, so the two rarely sit together.

A note of caution on the numbers. Estimates vary enormously between studies, depending on how each condition is defined and measured — autism and ADHD alone has been reported anywhere from 20% to 60%. Treat these as rough averages, not fixed rates.

The clearest understanding of a child comes from the whole picture: their strengths, how they think and learn, and what helps them thrive. That is what a thorough assessment is for.

New here? Our earlier post on how common each of these is on its own is a good place to start.
Sources: Micai et al. (2023), meta-analysis of conditions co-occurring with autism; Lai et al. (2019); and reviews of ADHD and specific learning difficulties.

27/06/2026

How common are they, really? Each grid in the video is 100 children, and the blue dots show roughly how many have each condition.


In every 100 children, approximately: dyslexia up to 10, ADHD around 5, dyscalculia around 5, dysgraphia 5 to 20 (the least well-defined), autism 1 to 2, and intellectual disability 1 to 3.


Two things to hold in mind. These overlap — many children have more than one — so you cannot simply add them up. And the numbers move: as awareness grows and criteria change, estimates shift, and experts disagree on how to define and count each one.


Common does not mean something to be fixed. It means support should be ordinary, and easy to reach.


Sources: ADHD — Polanczyk et al. pooled estimates. Autism — WHO and CDC. Dyslexia, dyscalculia and dysgraphia — learning-disorder prevalence reviews. Intellectual disability — prevalence reviews; severity split, King et al.


Save this, and share it with someone who assumes these are rare.


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26/06/2026

'When can my child be assessed?' is one of the questions we hear most. The honest answer: it depends on the child, not just the calendar.


A rough guide to when each typically becomes possible:


Autism — from around two, though signs can show in infancy and a clear diagnosis often comes later.


Intellectual disability — usually from around five, once assessments of thinking, reasoning and everyday skills become reliable. Before then it is called global developmental delay.


ADHD — in Irish practice, usually from around six, once a child has settled into school and the pattern shows across settings.


Dyslexia — from around six or seven, once reading is well underway and difficulty persists despite good teaching and learning support.


These are guides, not deadlines. The right time also depends on how clear the difficulties are, how long a child has been in school, and what support has already been tried.


If you are wondering about your child, a psychologist can weigh all of this with you.


Save this, and share it with a parent who is wondering.


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