Counting Fluency test online: forward, backward, skip

4 numbers appear in a row, counting up or down, and you pick the one that comes next. Over 30 sequences you see how smoothly the counting chain runs for you in each direction and step size.

Start the Counting test

30 sequences · about 2 min · click or tap

After the 30th sequence your accuracy and times appear, and you can store them with a free account.

+2 12, 14, 16, 18, 20 21 18 20 22
12, 14, 16, 18, then 20Up by 2 · 1 of 4 buttons

How it works

3 practice sequences with feedback, a 3-second countdown, then 30 scored ones. Each sequence waits for your answer, so the task takes about 2 minutes.

  1. 1 · 6 sequences

    Up by 1

    Plain counting, from starts such as 7, 31 or 56: 4 numbers in a row, then a blank line where the next one goes.

  2. 2 · 12 sequences

    Up by 2 and by 3

    6 sequences count in twos and 6 in threes, from starting numbers between 3 and 42.

  3. 3 · 12 sequences

    Down by 1 and by 2

    6 count down in ones and 6 in twos, from starting numbers between 24 and 50.

  4. 4 · Each answer

    Pick 1 of 4

    4 buttons show the answer and 3 near misses, none more than 3 away from it. Click or tap the number that continues the sequence.

The 5 kinds are shuffled together, and a counter under the sequence shows how many you have done. Only the practice flashes green or red after an answer. The scored sequences give no feedback, and none of them has a time limit.

The 30 starting numbers are fixed, so every attempt shows the same sequences, in a new order and with the answer buttons reshuffled. No number on screen goes above 60.

What it measures

Counting looks too simple to test. What this task looks at is how smoothly each direction and step size runs once it is timed.

Accuracy

  • How many of the 30 sequences you complete correctly, overall and for each of the 5 kinds.
  • Knowledge of the number sequence in both directions, up to 60.
  • Steady attention across 30 short items that change direction without warning.

Timing

  • Median time to answer for each kind, on correct answers.
  • Backward cost: counting down in ones compared with counting up in ones.
  • Skip cost: counting in threes compared with counting in ones.

The number words are one of the first fixed sequences people learn. In a study of adults with dyscalculia, one group learned new serial orders more slowly and lost them faster, and the authors suggest that kind of difficulty could hold back learning the number-word sequence (De Visscher et al., 2015).

Counting is also tangled up with fact recall. In children with severe difficulty retrieving facts, attempts to remember addition facts kept calling up numbers from the counting sequence instead (Geary et al., 2012). Counting is not one of the 4 tasks in the dyscalculia check; it is an extra number task you can add from the hub.

A test, not a diagnosis.

A counting score from one short sitting describes that sitting. It cannot diagnose or rule out dyscalculia or any other condition.

What you get

The result screen appears straight after the 30th sequence.

On the result screen

  • A headline set by your overall accuracy, with its cut points at 90% and 70%.
  • Your accuracy and an average response time in milliseconds.
  • Accuracy for each of the 5 kinds, and backward cost and skip cost as ratios such as 1.30×.
  • A data panel with correct answers and median time per kind, and a CSV file of every answer.

When you keep it

  • Your result stays in your account when you create a free account, and opens on any device.
  • Listed with the other number tasks in your results.
  • A next test is lined up for you when you finish.

How this version is scored

Each click is stored with the sequence, the option you chose and your time. The results use the 30 scored sequences only.

Correct answer
The button you chose is the number that continues the sequence by the same step. There is one click per sequence and no way to change it.
Median time
For each kind, the middle value of your times on correct answers, from the moment the sequence appears to your click.
Average time
The figure on the result screen averages the 5 medians, each weighted by its number of correct answers. It sits close to a typical time rather than a plain mean.
Backward cost
Median time counting down in ones divided by median time counting up in ones. 1.00× means no difference, and a value above 1 means counting down was slower.
Skip cost
Median time counting up in threes divided by median time counting up in ones, read the same way.

Accuracy leads. The headline uses accuracy alone: solid from 90%, a few errors from 70%, and a third reading below that. Times appear beside it but do not change the reading.

No published adult norms. A clinical number battery for adults includes counting tasks, and the 282 healthy adults in its norm sample, tested in Austria, made very few errors on them (Delazer et al., 2003). Its items and its error-count scoring differ from this task, so its cut-offs do not transfer here.

Before you start

The task is short, so a single lapse moves the numbers.

For a cleaner attempt

  • Read all 4 numbers before answering: the direction and the step can change from one sequence to the next.
  • On a phone, hold it so your thumb reaches all 4 buttons.
  • Silence notifications for the few minutes it takes.
  • Count in your head rather than on fingers or paper, so your times mean the same as anyone else's.

Interpret cautiously when

  • You were tired, rushed or interrupted.
  • You learned to count in another language than the one you use most now.
  • Reading, vision or motor-access needs make it harder to read the numbers or tap quickly.
  • You took it recently: the 30 starting numbers repeat on every attempt.

Questions

What does a counting fluency test measure?

It measures how automatically you continue the number sequence, up and down and in steps of 1, 2 or 3. Accuracy is the headline. The timing shows whether counting down or skip counting costs you extra time compared with counting up in ones.

What is a normal score on a counting test?

This exact task has no published adult norms. In a clinical number battery normed on 282 healthy adults, almost everyone made very few errors on the counting items, but that battery uses different items and scoring, so treat it as context only. The result screen here calls 90% correct or more solid.

Can I take the counting test on my phone?

Yes. The sequence and the 4 answer buttons fit a phone screen, and a tap works like a click. Keep the phone steady, since your times are part of the result.

Is counting part of the dyscalculia check?

No. The check uses 4 other tasks: dot comparison, number comparison, Arithmetic Verification and the number line. Counting is a separate task you can take on its own from the number tests in the hub, and it is listed with your other number results.

Sources