Vim li cas ho hu ua snowball sampling?
Vim li cas ho hu ua snowball sampling?

Video: Vim li cas ho hu ua snowball sampling?

Video: Vim li cas ho hu ua snowball sampling?
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Snowball sampling yog qhov chaw tshawb fawb cov neeg koom nrog nrhiav lwm tus neeg koom rau kev xeem lossis kev kawm. Nws yog siv qhov twg cov neeg koom nrog nyuaj nrhiav. Nws yog hu ua snowball sampling vim hais tias (hauv txoj kev xav) thaum koj muaj lub pob dov, nws khaws ntau "snow" raws txoj kev thiab ua loj dua thiab loj dua.

Ib yam li ntawd, koj tuaj yeem nug, lub ntsiab lus ntawm kev kuaj snowball yog dab tsi?

Hauv kev tshawb fawb txog kev noj qab haus huv thiab kev txheeb cais, snowball sampling (los yog chain kev kuaj , chain- referral kev kuaj , xa mus kev kuaj ) yog ib qho kev tsis txaus ntseeg txheej txheem sampling qhov twg cov kev kawm uas twb muaj lawm nrhiav cov kev kawm yav tom ntej los ntawm lawv cov neeg paub. Yog li cov qauv pawg tau hais kom loj hlob zoo li dov snowball.

Ib yam li ntawd, puas yog snowball sampling qualitative lossis quantitative? Qhov xwm ntawm snowball sampling yog li ntawd, nws tsis tuaj yeem txiav txim siab rau tus neeg sawv cev qauv los yog nyob rau hauv cov ntaub ntawv no rau kev tshawb fawb statistical. Txawm li cas los xij, qhov no kev kuaj txheej txheem tuaj yeem siv dav rau kev coj ua zoo kev tshawb fawb, nrog cov pej xeem uas nyuaj rau nrhiav.

Yog li ntawd, vim li cas snowball sampling tsis zoo?

Qhov tsis zoo ntawm Snowball Sampling Sawv cev ntawm lub qauv tsis lav. Tus kws tshawb fawb tsis muaj lub tswv yim ntawm qhov tseeb faib ntawm cov pej xeem thiab ntawm cov qauv . Qauv kev tsis ncaj ncees kuj yog kev ntshai ntawm cov kws tshawb fawb thaum siv qhov no kev kuaj txheej txheem. Cov ntsiab lus pib nyiam xaiv cov neeg uas lawv paub zoo.

Puas yog snowball sampling sawv cev?

Muab qhov xwm ntawm snowball sampling , nws tsis suav tias yog a tus qauv rau cov hom phiaj txheeb cais. Txawm li cas los xij, nws yog ib qho txheej txheem zoo heev rau kev tshawb nrhiav kev tshawb fawb thiab / lossis kev tshawb fawb zoo nrog cov neeg tshwj xeeb thiab me me uas nyuaj rau txheeb xyuas lossis nrhiav.

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