Speech & language ยท ATP / WPS
TAPS-4 Age Calculator
Chronological age in years;months.days for the Test of Auditory Processing Skills, Fourth Edition, with the published age range 5:0 โ 21:11 checked for you.
TAPS-4 at a glance
| Full name | Test of Auditory Processing Skills, Fourth Edition |
|---|---|
| Publisher | ATP / WPS |
| Published age range | 5:0 โ 21:11 |
| Age format | Years;months.days |
| Corrected age | Not applied in standard scoring. |
| Discipline | Speech & language |
The TAPS-4 measures auditory-linguistic processing โ memory, discrimination and cohesion โ and is commonly used alongside a language battery when listening difficulties are reported. It is a language-processing measure, not an audiological one.
How the TAPS-4 wants the age entered
Enter the exact chronological age in years;months.days. Scoring selects the norm table containing that age, so the partial month is not rounded up.
The underlying calculation is the same for every instrument โ complete years, complete months, then the leftover days. What differs is which part of it goes on the form. The calculator above reports all four figures at once, so you can copy the one the TAPS-4 manual asks for without recalculating:
- Years;months.days โ the full record-form format, e.g. 6;6.19
- Years;months โ complete units only, e.g. 6;6
- Complete months โ e.g. 78 months
- Rounded to nearest month โ e.g. 79 months (6;7), using the 15-day threshold
The exact date arithmetic, including month-end clamping and leap-day handling, is documented in the calculation methodology.
Worked example
A child born February 27, 2020 and assessed on September 15, 2026:
- Chronological age: 6 years, 6 months, 19 days
- Record on the TAPS-4 as: 6;6.19
- Day remainder: 19 days โ 15 or more, so a nearest-month rounding rounds up
Enter these exact dates above to reproduce the result. Every figure on this page is computed by the same library that runs the calculator, so the worked example and the tool can never disagree.
Other instruments
Same calculation, different recording format. These are the instruments most often administered alongside the TAPS-4:
| Instrument | Age range | Age format |
|---|---|---|
| CELF-5 | 5:0 โ 21:11 | Years;months.days |
| CELF Preschool-3 | 3:0 โ 6:11 | Years;months.days |
| PLS-5 | Birth โ 7:11 | Years;months.days |
| PPVT-5 | 2:6 โ 90:0 and older | Years;months.days |
| EVT-3 | 2:6 โ 90:0 and older | Years;months.days |
| GFTA-3 | 2:0 โ 21:11 | Years;months.days |
The full list is on the assessment instrument reference, and the assessment age calculator covers any instrument not listed individually.
TAPS-4, ATP / WPS are trademarks of their respective owners. AgeCalc is not affiliated with, endorsed by, or sponsored by any of them. Brand names are used descriptively to identify the assessment formats this calculator supports.