Kusiyana pakati pa stratified sampling ndi cluster sampling

Mau oyamba

Mudziko M'mawerengero, ndizofala kugwiritsa ntchito njira zachitsanzo kuti mupeze deta yoimira anthu. Njira ziwiri zodziwika bwino ndi stratified sampling ndi cluster sampling. Onsewa ali ndi mawonekedwe awo ndipo amagwiritsidwa ntchito muzochitika zosiyanasiyana. Kenako, tiwona zomwe njira iliyonse ili nayo komanso kusiyana komwe kuli pakati pawo.

Stratified zitsanzo

Zitsanzo za Stratified zimakhala ndi kugawa anthu m'magulu kapena timagulu tating'ono, ndiyeno kugwiritsa ntchito njira yosavuta yowonera mosasinthika pamagulu onsewo. Mwanjira iyi, zimatsimikiziridwa kuti stratum iliyonse imayimiridwa mu chitsanzo, ndipo chitsanzo cholondola komanso chofanana chikhoza kupezeka.

Chitsanzo

Tiyerekeze kuti tikufuna kuchita kafukufuku wokonda masewera mumzinda. Titha kugawa anthu m'magulu osiyanasiyana malinga ndi zaka komanso jenda. Kenaka, timagwiritsa ntchito zitsanzo zosavuta zachisawawa pamagulu onsewa kuti tipeze zitsanzo zoimira anthu onse.

Cluster sampling

Mu sampuli zamagulu, magulu a anthu amagawidwa m'magulu kapena magulu, ndipo chiwerengero chodziwika cha maguluwa chimasankhidwa mwachisawawa kuti chiphatikizidwe mu chitsanzo. Kenako, mayunitsi onse ochokera m'magulu osankhidwawo amatengedwa kuti apange chitsanzo. Njirayi ndi yothandiza pamene deta sichipezeka kwa munthu aliyense mwa anthu, koma imapezeka kwa gulu lirilonse.

Chitsanzo

Tiyerekeze kuti tikufuna kuchita kafukufuku wokhudza maphunziro apamwamba m'chigawo. M'malo motengera ophunzira aliyense payekhapayekha, titha kusankha mwachisawawa kuchuluka kwa masukulu m'chigawocho ndikutenga chitsanzo cha ophunzira ochokera m'masukulu amenewo.

Kusiyana pakati pa stratified sampling ndi cluster sampling

• Zitsanzo za Stratified zimagawa anthu m'magulu osiyanasiyana, pomwe kusanja kwamagulu kumagawa anthu m'magulu kapena magulu.
• Stratified sampling amagwiritsa ntchito njira yosavuta yopangira zisankho mumtundu uliwonse, pomwe sampuli yamagulu amasankha magulu omwe angaphatikizepo pachitsanzocho.
• Stratified sampling amagwiritsidwa ntchito pamene akufuna kupeza chitsanzo chofanana ndi choyimira chamtundu uliwonse, pamene sampuli zamagulu ndizothandiza pamene deta palibe payekha, koma ikupezeka ndi gulu.

Pomaliza

Mwachidule, stratified sampling ndi cluster sampling ndi njira zothandiza m'dziko la ziwerengero kuti mupeze zitsanzo zoimira anthu. Onsewa ali ndi zofunikira zawo ndipo amagwiritsidwa ntchito pazinthu zosiyanasiyana, kotero ndikofunikira kumvetsetsa zomwe njira iliyonse imakhala nayo komanso kusiyana komwe kuli pakati pawo.