Cross-Sectional Statistical Modeling
Ndingasarudza Rini SEM?
Structural Equation Modeling (SEM) yakawanda inyanzvi yekutsvakurudza iyo inogonawo kusanganisira nzira dzepamusoro. SEM inoshandiswa kuratidza hukama hwehutano pakati pezvimwe zvinoshandiswa. Ukama hwakaratidzwa muSEM hunomiririra mafungiro evatsvakurudzi. Kazhinji, ukama uhwu haugoni kuongororwa kuti utungamirire.
SEM inowanzoshandiswa kutsvakurudza iyo yakagadzirirwa kusimbisa tsvakurudzo yekuongorora pane kutsvaga kana kutsanangura chimwe chinhu.
Izvi zvinoreva kuti mumwe anotsvakurudza angave achifarira simba rehukama pakati pezvimwe zvinoshandiswa mu hypothesis, uye SEM inzira yekuongorora izvo zvinyorwa zvisingaiti kune inodhura yekutsvakurudza. SEM inogadzira data muchiratidziro chekuonekwa-uye ichi chikamu chekutsvaga kwayo. Paunenge uchishandisa SEM, muongorori anoona kuratidzika kwakajeka kunoratidzika zviri nyore kududzira, kunyange kana nhamba dziri shure kwedhidha dzakanyanya kuoma.
Chii Chinofananidzira Nokusiyana kweChinji-Chikamu?
Kusiyanisa kwemuchinjikwa kunokonzera kupesana kune avo vakapindura avo vari chikamu chekutsvakurudza.
SEM yakagadzirirwa kutarisa hukama hwakakomba pakati pezvimwe zvinoshandiswa, uye kuderedza hukama kune zviratidzo zvinoratidzwa. Chigadzirwa chekutsvakurudza chinogona kurondedzerwa mumaterns emagadziro ekugadzira uye zviyero zvinowanikwa mukutsvakurudza. Aya hukama hwehutano uye hwekuyera ndiwo hwaro hwekufungidzira.
Uye kana uchishandisa SEM, tsvakurudzo yekugadzira inogona kuenzaniswa nekombiyuta. Ukama huri kuratidzwa mumasikirwo eSEM hunotsanangurwa nedata rakarongwa mumatrikisi. SEM inoshandisa kusiyana-siyana kwepakati kuita chikamu chinoita kuti zvigadziriswe.
Ndeipi Pfungwa Yenzira Yokuongorora Yakabva?
SEM iyi inyanzvi yepamusoro-shanduko yekuenzanisa nzira iyo yakabva mumari yekuongorora.
Econometric inoreva munda wezvoupfumi, uye masvomhu anoshandiswa mune zvehupfumi kutsanangura ukama huri pakati pemamiriro akasiyana-siyana uye hutsika hunoita hupfumi.
SEM inosanganiswa chechikonzero chekutsvaga uye kuregererwa kwakawanda. Izvo zvinoreva uye zvinoshandiswa zvinoreva pfungwa imwechete munhamba.
Nzira Kuongorora inzira dzakasiyana-siyana dzeSEM, iyo inoratidzira nzira ye multivariate iyo inobvumira muongorori kuti aongorore kushandiswa kwezvimiririra uye zvirevo zvakatarisa mune tsvakurudzo yekugadzira.
- Zvimwe zvinogona kuenderera mberi kana kutonhora.
- SEM inoshanda nemitengo yakaenzana uye mhando dzakasiyana.
- Nzira Kuongorora inoshandisa maitiro ehutano chete.
- Kuenzanisa zviyero zvinogona kuonekwa uye zvinogona kuenzaniswa.
- Nhamba dzakasiyana-siyana hazvikwanisi kuonekwa zvakananga, asi tsika dzadzo dzinogona kuratidzirwa nehukama hwavo kune zvakasiyana-siyana.
- Zvimwe zvidimbu zviviri kana zvinopfuura zvakaenzana zvinodiwa kuti uone kukosha kwechidimbu chinotevera.
Ndeupi musiyano pakati pezviyero uye zvakagadziriswa maModels?
SEM ine zvikamu zviviri zvinokosha: Muenzaniso wekuenzanisa uye muenzaniso wekugadzirisa.
Ihu hukama pakati pezvimwe zvinoshandiswa (zvose zvakaenzana uye zvishoma) hunoratidzwa mumuenzaniso wekuyera. Kunze kwekuti hukama huripo pakati pezvipembenene zvinotevera huratidzwa muhutano hwemagariro.
Chimwe chibatsiro chinokosha chekushandisa mararamiro echibvumirano ndechokuti havakwanisi kusanganisa. Iko kukanganisa kunobatanidza nezvipembenene zvinotevera zvinotaridzirwa zvichienzaniswa uye zvabviswa muSEM kuongororwa. Kunongosiyana chete kunoramba kuripo. Tidy.
Kuenzaniswa kweSEM kwakaitwa sei?
A SEM yakavakwa kuburikidza nematanho mashanu akajeka. Izvo zvinotevera:
Paunotanga kudzidza nezveHurved Equation Modeling, zvinobatsira kutarisa chimwe nechimwe chezviito izvi mumwe nomumwe. Kwete kuzvimirira, asi imwe chete panguva.