What background you all have that contributed you think to scoring 100

I read a lot, and have since I was a child

edit: also, native English (well, American) speaker

Same here. Also, I studied Latin and Greek in school and have kept studying them in various ways since then. I think this test is significantly biased toward vocabulary with these origins; dozens of tested words are directly recognizable as the "ordinary" Latin or Greek words for some concepts, or direct combinations of common Latin or Greek roots.

A lot of prestigious and scholarly vocabulary in English has come in through Latin and Greek (at various points in the history of English!), so you can learn that vocabulary or make it more memorable or more transparent either by studying Latin and Greek as languages, or just by studying some of their common morphemes (e.g. there are lists of Latin and Greek roots that may be given to medical or life sciences students to help them learn to recognize the meaning of terminology coined from these languages, even without speaking the languages).

But I think it's actually unrepresentative of the English language as a whole if we're literally thinking about vocabulary size rather than historical prestige of some part of the vocabulary. For example, foreign foods like "nori", "pandan", "dolma", "vichyssoise"[1], or "berbere" are often used as English words and would probably appear in large English dictionaries nowadays. None of that was tested in this quiz. I saw one foreign political term which I guessed at, and one or two German loanwords which I knew (I've also studied German), and almost everything else was Latin or Greek origins!

[1] apparently coined by a French-speaking American based on French roots?

I got 96. I think I knew about 87 of them just from knowing them, and the rest I got with a bit of Latin and Greek background (eg a word starting with “ab” is likely to mean “away from”), plus there’s a pattern to how they’d generated the wrong answers.

I missed two, but I’m willing to be tthey’re similar to me - I read a lot and whenever I encounter a new word I don’t know, I usually look up its etymology.