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Rainer Kroll

John Jay College professor

Chill Rank and student ratings

Chill Rank 2 of 5: Easy?Easy: easier than most

Overall
4.2/5
Difficulty
2.2/5
Would take again
80%

From 87 student ratings on Rate My Professors. The Chill Rank weighs difficulty most; here is how it works.

Fall 2026 sections taught by Rainer Kroll