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The relationship between smiling and divorce also held up among townspeople, even though many sent photographs of themselves as children. Facial expression predicted divorce even when the smile or frown was on a ten-year-old's face. A photograph that records a split second from a lifetime is a very thin slice indeed. How could it predict a divorce decades in the future?
The researchers suggest that the smiles are accurate indicators of personality. The results should not be overstretched. The never-divorced had their smiles rated on average at 5.9, 5.9 and 5.2 out of 10 in each of the three groups, while the divorced scored 5, 5.3 and 4.4. That is not a huge difference, but it is statistically significant. On the other hand, comparing only the lowest-scoring people with the highest-scoring, the least-smiling were three times more likely than the biggest smilers to divorce.
Until the findings are replicated it is probably too early to choose a spouse based on a facial expression in a photo. On the other hand, it would not hurt to smile for the camera yourself.

A. 어휘
hold up 지속되다. facial expression 얼굴 표정. frown 찡그린 상.
split-split-split 찢다. split second 瞬息間(순식간).
decades in the future 수 십 년 뒤의 미래에 있어서. accurate 정확한.
indicator 尺度(척도), 標識(표지). overstretch 확대 해석하다, 지나치게 잡아당기다.
average 평균. statistically 통계적으로. significant 의미가 있는.
the least-smiling 가장 적게 웃는 사람들. cf. the + Adj.(형용사)→복수 보통명사.
findings 조사결과. replicate 접다, 반복하다, 세포 복제하다.

B. 구문
- The never-divorced had their smiles rated . . . at 5.9, 5.9 and 5.2
cf. the + Adj.(형용사)→복수 보통명사.
ex. the never-divorced 이혼 한 적이 없는 사람들.
cf. have +비인칭 목적어 + 과거분사→ ...하게 되다.
ex. I have my house painted white.
- Until the findings are replicated . . . a facial expression in a photo.
[조사결과가 다른 사람들에게도 적용될 때까지는 사진 속의 웃는 표정을 보고 배우자를 선택하는 하는 것은 아직은 時機尙早(시기상조)인 것 같다]