I have just been sent data for a Y5 class at Tyldesley Primary school in Wigan, whose pupils all received Sounds-Write tuition from the beginning of Reception. All twenty-five pupils scored above their chronological ages, the weakest by two months, the next weakest by eight months - in itself a remarkable achievement.
At the top end, four children scored a spelling age of 15 years or above.
On average, the chronological age in the class was 10 years and 2 months. Their average spelling age was 12 years and 10 months.
These are fantastic results. Well done to the teachers and to the school!