![Dab tsi yog qhov kev xeem ywj pheej thiab nyob ruaj khov? Dab tsi yog qhov kev xeem ywj pheej thiab nyob ruaj khov?](https://i.answers-medical.com/preview/medical-health/14020538-what-is-independent-and-dependent-t-test-j.webp)
Video: Dab tsi yog qhov kev xeem ywj pheej thiab nyob ruaj khov?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov ywj siab kuaj t - xeem sib piv ob ywj siab pawg ntawm kev soj ntsuam lossis kev ntsuas ntawm ib tus yam ntxwv. Cov ywj siab kuaj t - xeem yog qhov nruab nrab ntawm cov ncauj lus analog rau nyob kuaj t - xeem , uas yog siv thaum txoj kev kawm cuam tshuam nrog kev ntsuas ntau dua (piv txwv li, pretest vs.
Thiaj li, qhov sib txawv ntawm kev ywj pheej thiab kev vam khom t yog dab tsi?
Nyob ntawm tus neeg kev kuaj pom tshwm sim thaum koj muaj ob qho piv txwv uas cuam tshuam rau ib leeg. Kev ywj pheej cov qauv tshwm sim thaum koj muaj ob qhov qauv uas tsis cuam tshuam rau ib leeg. Yuav ua li cas yog xeem txheeb cais ( t ) txuam nrog ob nyob cov qauv.
Ib tug kuj yuav nug, puas yog ib khub t xeem nyob ntawm lossis ywj siab? Ua khub / Nyob ntawm T - xeem Cov ua khub -piv txwv t xeem (tseem hu ua nyob - qauv t xeem ) yog siv los sib piv ob txoj hauv kev rau cov xwm txheej uas txhua tus neeg koom nrog nyob rau hauv ob qho tib si qauv (los yog qhov xwm txheej ntawm ob pawg uas sib koom ua ke, piv txwv li, txiv thiab poj niam).
Kuj paub, dab tsi yog qhov ntsuas t ntsuas?
Cov nyob t - xeem (tseem hu ua khub t - xeem los yog ua ke-cov qauv t - xeem ) sib piv cov ntsiab lus ntawm ob pab pawg muaj feem cuam tshuam los txiav txim seb puas muaj qhov sib txawv ntawm qhov tseem ceeb ntawm cov kev txhais no.
Tus qauv ywj pheej yog dab tsi?
Kev kuaj tus kheej yog kuaj uas tau xaiv randomly kom nws cov kev soj ntsuam tsis nyob ntawm qhov tseem ceeb ntawm lwm cov kev soj ntsuam. Ntau qhov kev txheeb cais txheeb raws qhov kev xav tias kuaj yog ywj siab . Lwm tus yog tsim los ntsuas kuaj uas tsis yog ywj siab.
Pom zoo:
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Cov qauv ntsuas nyob ib puag ncig yog ntsuas ntsuas rau ib pawg ntawm cov khoom. Kev kuaj ywj pheej yog ntsuas ntsuas ntawm ob pawg khoom sib txawv. Yog tias qhov txiaj ntsig hauv ib qho piv txwv cuam tshuam rau qhov txiaj ntsig hauv lwm tus qauv, tom qab ntawd cov qauv yog nyob ntawm
Qhov sib txawv ntawm kev ntsuas t rau kev kuaj ywj pheej thiab t kuaj rau cov piv txwv nyob li cas?
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Kev kuaj tus kheej t-test sib piv ob pawg neeg ywj pheej ntawm kev soj ntsuam lossis ntsuas ntawm ib tus yam ntxwv. Kev kuaj tus kheej t-test yog qhov nruab nrab ntawm cov ncauj lus sib piv rau cov piv txwv t-test, uas yog siv thaum txoj kev tshawb fawb cuam tshuam nrog kev ntsuas dua (piv txwv li, pretest vs
Dab tsi yog qhov kev xeem tus qauv ywj pheej?
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Qhov Kev Tshawb Fawb Txog Kev ywj pheej t piv cov txhais tau tias ntawm ob pawg neeg ywj pheej txhawm rau txiav txim siab seb puas muaj pov thawj tseeb tias cov pej xeem cuam tshuam txhais tau tias sib txawv heev. Qhov Kev Ntsuas Tus Kheej t Test yog ib qho kev ntsuas parametric. Qhov kev xeem no tseem hu ua: Independent t Test
Dab tsi yog qhov sib txawv ntawm cov qauv ua piv txwv thiab kev ywj pheej?
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Ob leeg txheeb xyuas seb qhov sib txawv ntawm ob txhais tau li cas yog qhov tseem ceeb. Paired-sample t xeem sib piv cov qhab nia ntawm ob qhov sib txawv tab sis rau tib pawg neeg ntawm rooj plaub; ywj siab-cov qauv t kev xeem sib piv cov qhab nia ntawm tib qhov sib txawv tab sis rau ob pawg sib txawv ntawm cov xwm txheej
Qhov sib txawv ntawm kev ruaj khov thiab tsis ruaj khov yog dab tsi?
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Qhov sib txawv ntawm kev sib luag ruaj khov thiab tsis ruaj khov yog nyob hauv txoj kab nqes ntawm kab ntawm theem phiaj xwm ze ntawm qhov sib npaug. Kev ruaj khov equilibria yog tus cwj pwm los ntawm txoj kab nqes tsis zoo (kev tawm tswv yim tsis zoo) qhov tsis ruaj khov equilibria yog tus cwj pwm los ntawm txoj kab nqes zoo (kev tawm tswv yim zoo)