Several
TTO schools are following the Cambridge Secondary 1 programme and using Cambridge Checkpoint, a diagnostic testing service which provides feedback on English, maths and science.
TTO schools are a network of bilingual state schools in the Netherlands.
A better summary of year one might be, «Most
TTO schools had gains statistically indistinguishable from the national average, one school did substantially better, and one school did substantially worse.»
As the author explains in the text, if you remove school A from year 1, there are no differences between
the TTO schools and the national norm.
Not exact matches
The key findings from the study are summarized in the Executive Summary as follows: «during the 2012 - 2013
school year
TTO students gained mathematics skills at a rate that was roughly 15 % higher than the national average (effect size = 0.12 SD).