hello, all i know is that 4 and above is great
my daughter got 4 and 5 aswell this is only a mock test for next year so the chances are they will be 5s by then so im sure you will pass the grammer school test,where are you?
NFER score of 100 is average so your dd is above average.
In our school (secondary although I don't think that matters) we also look for discrepancies between scores - e.g. 125 for one and 92 for another - as these can be a sign of a learning difficulty.
Your dd doesn't have this so not to worry there.
Our school also flags up scores over 130 as pupils who are potentially "gifted"
Found the table here - it's actually about 11+ but principle is the same. As an example it says "For instance in North-West London in 2003 the minimum standardised score was said to be 124. This score will vary from year to year depending on number of applicants as well as the quality of applications for a particular school."
121 and 116 are good scores, and level 5 in Y5 is excellent, so she's certainly on track for passing, but there is always an element of chance depending how able the cohort is.