That sounds sad Dibsie, but makes me suspicious of what happened last year. Was there a dip in results, if so a school can't afford for that to look like a trend.
And people wonder why their levels have dropped when they get to Secondary in September ...
Having moved from teaching primary to secondary, I think there are a variety of issues that combine to cause the drop in achievement. The SAT results are often an elevated score because of good and extensive exam preparation as above (just like secondaries do for GCSEs
); many primary Y6 pupils really do very little after SATs and progress slows, (but some continue to push ahead); some secondaries do not believe the results and insist on starting at a prescribed level (particularly MFL, my own children were a good level in French due to excellent teaching at primary, but had to start at counting and colours again
); the primary curriculum and resulting level 5s and 6s are not equivalent to level 5 and 6 at secondary, because it only tests a tiny part of the curriculum and finally (and hopefully G55 and other secondary teachers will tell me I'm wrong and unlucky) writing and reading dip because, in my experience, secondary teachers do not teach literacy skills through their subjects and it drives me nuts!