Iimodeli zeStatistical Section
Ndingakukhetha nini i-SEM?
I-Equation Equation Modeling (SEM) yindlela yokwenza uphando oluninzi olunokuthi ifake iindlela zokufaneleka. I-SEM isetyenziselwa ukubonisa ubudlelwane be-causal phakathi kweenguqu. Ubudlelwane oboniswe kwi-SEM bubonisa iingcamango zabaphandi. Ngokuqhelekileyo, olu lwalamano alukwazi ukuvavanywa ngokulandelelanayo ukuze lukhokelo.
I-SEM isetyenziselwa ukuphanda eyenzelwe ukuqinisekisa ukucwangciswa kophando kunokuba ihlolisise okanye ichaze into.
Oko kuthetha ukuba umphandi unomdla kumandla olwalamano phakathi kwezinto ezichaziweyo kwi-hypothesis, kwaye i-SEM yindlela yokuhlolisisa ezo ziguquko ngaphandle kokuya kwiprojekthi yophando olubi. I-SEM ikhiqiza idatha ngokubonakalayo-kwaye le nxalenye yesibheno sayo. Xa usebenzisa i-SEM, umphandi ufumana ukubonakaliswa okubonakalayo okulula ukululaza, nangona ukuba iinkcukacha ezisezantsi kwedatha zinzima kakhulu.
Yintoni echazwe nguTshintsho lweCandelo loNxweme?
Utshintsho lwecandelo lomnqamlezo lugqithiso lwabaphenduli abayingxenye yophando lophando.
I-SEM yenzelwe ukujonga ubudlelwane obuyinkimbinkimbi phakathi kwezinto ezihlukeneyo, nokunciphisa ubudlelwane nokubonakaliswa okubonakalayo. Uyilo lophando lunokuchazwa kwii-tern zesakhiwo soyilo kunye nemilinganiselo eyenziwa kuphando. Ulwalamano oluhle nolungqinelanayo luyisiseko seengcamango.
Kwaye xa usebenzisa i-SEM, uyilo lophando lunokumodareyitha ngekhompyutha. Ubudlelwane obuboniswa kwi-SEM modeling bunqunywe ngedatha ehlelwe kwi-matrix. I-SEM isebenzisa ukuhlukana kwecandelo lokwinqanaba ukwenza umzekelo ovelisa izigqibo.
Kuphi na iNgcamango yokuHlalutya kwendlela?
I-SEM yindlela yokwenza imodeli ehamba ngamanqanaba ahlukeneyo ephuma kwimpucuko loqoqosho.
Uqoqosho lithetha intsimi yezoqoqosho, kunye neemathematika ezisetyenziselwa uqoqosho ukuchaza ubudlelwane phakathi kweemeko ezahlukeneyo kunye neziguquko ezenza uqoqosho.
I-SEM inxulumene nokuhlalutya kwezinto kunye nokunyanzeliswa kwezinto ezininzi. Imiqathango kunye nokuguquguquka kubhekisela kwingcamango efanayo kwimanani.
Uhlalutyo lwendlela luyintlukwano ye-SEM, eyona hlobo lwenkqubo ekhuselekileyo evumela ukuba umphandi ahlole iimpendulo ezizimeleyo kunye neenguqu ezixhomekeke kwiinkalo zophando.
- Imirhubhe iyakwazi ukuqhubeka okanye idibeneyo.
- I-SEM isebenza kunye neziguquko ezilinganisiweyo kunye neziguquko ezilandeleleneyo.
- Indlela yokuhlalutya isebenzisa ixabiso elilinganisiweyo kuphela.
- Iziphumo ezilinganiselweyo zingabonwa kwaye zilinganiselwa.
- Imithamo yexesha eliqhelekileyo ayikwazi ukubonwa ngokuthe ngqo, kodwa ixabiso labo lingabonakaliswa ngobudlelwano babo kwiimpawu ezikhoyo.
- Imimiselo emibini okanye ngaphezulu imilinganiselo iyimfuneko ukucacisa ixabiso lentengo ekhoyo.
Yiyiphi i-Difference phakathi kweMilinganiselo kunye neeModeli zakhiwo?
I-SEM ineengxenye ezimbini ezisisiseko: Imodeli yokulinganisa kunye nomzekelo wesakhiwo.
Ubudlelwane phakathi kwezinto eziguqukayo (zombini zilinganiselwe kwaye zifihliwe) ziboniswa kumzekelo wesilinganiselo. Kuphela ulwalamano phakathi kweenguqu ezinokuthi luboniswe kumzekelo wesakhiwo.
Enye inzuzo ebalulekileyo yokusebenzisa iinguqulelo ezisemgangathweni kukuba akhululekileyo ngephutha. Iphutha ehambelana nemimandla elandelelanayo iqikelelwa ngokukhawuleza kwaye isuswe kuhlalutyo lwe-SEM. Kuphela ukuhluka okufanayo. Tidy.
Ukuhlalutya kwe-SEM kwenziwa njani?
I-SEM yakhiwa ngamanyathelo amahlanu adibeneyo. Zizo zilandelayo:
Xa uqala ukufunda nge-Structured Equation Modeling, kuyakunceda ukuqwalasela ngalinye le nyathelo ngalinye. Ayizimeleyo, kodwa enye kuphela ngexesha.