Ǻδ 2015 Ը 11 5000( ) ΰǰ ‘ǰȯ ’ Ȱ ġ .
δ 2006 ǥ , ǰ ȯڰ 湮 ü ( ) ǰ ľϴ ǥ ִ ߴ.
Ư, 2015 ִ 8 5552 ȭ(stratified cluster sampling) Ȱ 1825 , 8(2016 5∼12) 縦 ߴٰ ٿ.
δ Ȱ Ը Ȱ밡 ڷ ŷ ִ ڷ ߴ.
δ 21 < ɾ, Ը ߸ ľߴ> 翡 ظߴ.
ѱȸ ‘ ɾ οǰ ’ å̳ ȯ ǥ ο, δ Ը 12̶ 12 ξ ũٴ ̶ ߴ.
ڰ漮 kspp@hanmail.net
<۱ © , >