求教一下坛友

slonecn

看了一个孩子的Mensa test后果通知，外面有这么一段话“ Your test paper has now been scored. Of the five intelligence indexes calculated, we use three indexes to assess eligibility for Mensa membership. Your highest of the three index scores was FII = 145; 99.9%ile . ”请问“ FII = 145; 99.9%ile”是甚么意思，FII是指甚么？