θ Ǵ  λ  ū   ϳ Ѵ.  ̰  κε θ Ǵ ŭ ູ ٴ  ̱  PLOS One ǥƴ.

̱ ̽ðָб ɸа   981  ̸ ,    ߴ.̹  ڳడ   īװ   Ưϴٰ  ߴ.   κ  'θ' ڳడ  'θ(Non-parents)' ũ  , θ ȭ ʾұ ̴. θ ̸      ̸     Եȴ. θ 3 ߴ. ڹ ڳฦ  ʱ  (Child-free),  Ȳ ڳడ  (Childless),   ڳడ  (Not-yet-parents)̴. ڰ ̸  Ȥ ̸  ; ϴ ƴϸ    ˱  '' Ȥ 'ƴϿ' ϴ 3  .1. ģڳ ڰ ִ Ȥ ſ ־2.  ģڳ ڸ  ȹ ִ3. ģڳ ڸ  ϴ   'ƴϿ'   'ڳฦ  ʱ  (Child-free)' зߴ. 亯 27% ̸  ʱ  ̾. SWLS(Satisfaction With Life Scale)   ü    ߴ. ̾ IPIP(International Personality Item Pool) ̿  ߴ. IPIP 5  ⼺, Ű漺, Ǽ, ģȭ, 漺 ϴ .м , θ θ     Ư ǹ ̰ Ÿ ʾҴ. , θ Ե  ̿    ̰ . ̸  ʱ   ̰ ִ   ū ο . ƿ  ̸  ʱ    ϴٰ . ̲ ɸа α Jennifer Watling Neal Zachary Neal ڰ ̽ð θ    ǥ    ̹  Ѱ žҴ.