그렇게 그는 데이터를 조사해 봤는데 비싸고 복잡한 방법이 값싼 방법보다 더 좋을게 없다는 것을 발견했습니다. 최소한 두 살이상인 아이들한테는 그랬지요. 그보다 어린 아이들 한테는 값싼 방법이 여전히 효과가 없었습니다.
And lo and behold, when he went through the data, he found that it didn't look like the expensive, complicated solution was any better than the cheap one, at least for the children who were two and older -- the cheap one still didn't work on the kids who were younger.