And they're not detected in the sense that they realize, "OK, you must have changed my answer," it was more the case that, "OK, I must've misunderstood the question the first time I read it.
속임수가 들켰다면 이렇게 얘기했겠죠. "당신이 내 답변을 바꾼 게 분명해요." 그런데 대부분 이렇게 말했습니다. "처음 읽었을 때 그 문제를 오해했나 봐요.