Hi Hopeful and Guest,
Just to clarify a few points - just because a child has a max. standardised score of 140 or 141 in the test does not mean that that raw score is anything like that.
The Age Standardisation process converts a raw score to a std score - scores that achieve quite a few marks less than the maximum can still receive a 100% Standardised score.
Take a look at the published results for the KS2 exams (on the QCA web site) for an example. In that specific situation some children who had a raw score of only 45 out of 50 reading test questions were still given a max 140 score. Similarly for Maths 78 out of 80 may also get full marks. The official reason given is as follows:
very low scores and very high scores are printed in the table as ***. This means that they would be below the lowest score in the table or above the highest, but cannot be calculated with the necessary degree of statistical reliability. If an exact score is needed, ........, the next score below (69) or above (141) should be used as appropriate for these pupils.
This explains the apparent anomoly why a significant number get the max. even if they didn't answer all the questions correctly.
Hope this clarifies matters.