Leosghost - 11:32 pm on Dec 10, 2011 (gmt 0)
Everyone here does realise that "grade level" means nothing to anyone outside North America ? ( unless we look it up ) because not all school systems use "grades" ( as in : 1st grade or 5th grade etc ), most education systems use "reading age" levels, as in "reading level of average 12 year old" etc ..( what "grade" would a 12 year old be in ? ) or the equivalent in their society or language, and this is WebmasterWorld ..
If we are talking about keeping things "jargon free" and accessible to all visitors wherever they may be from, making assumptions about their understanding of...
Readability Formula Grade
Flesch-Kincaid Grade Level 15.00
Gunning-Fog Score 18.20
Coleman-Liau Index 15.60
SMOG Index 12.90
Automated Readability Index 17.20
Average Grade Level 15.78
is ironic, in the context of the thread and the OP ;-)..
As ken_b hinted at, if your reader has to ( as I did ) leave your page and go searching on another site to find out what your "jargon" meant..you've lost them ..maybe for ever..wikipedia can suck you in :)