Video: Post hoc pairwise kev sib piv yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib Txoj Kev ANOVA Post Hoc Kev sim. Thaum koj tau txiav txim siab tias qhov sib txawv muaj nyob ntawm txoj kev, pos hoc ntau yam kev xeem thiab ua ke ntau kev sib piv tuaj yeem txiav txim siab uas txhais tau tias txawv. Siv t xeem los ua txhua yam kev sib piv nruab nrab ntawm pab pawg txhais tau tias. Tsis muaj kev hloov kho rau qhov yuam kev rau ntau yam kev sib piv.
Ntawm no, post hoc kev sib piv yog dab tsi?
Tshaj tawm - hoc (Latin, lub ntsiab lus "tom qab no") txhais tau tias txheeb xyuas cov txiaj ntsig ntawm koj cov ntaub ntawv sim. Lawv feem ntau ua raws li kev ua yuam kev hauv tsev neeg; qhov yuav tshwm sim tsawg kawg yog ib qho yuam kev Hom I hauv ib pawg (tsev neeg) ntawm kev sib piv . Feem ntau ncej - hoc xeem yog: Bonferroni txheej txheem. Duncan qhov kev xeem ntau yam tshiab (MRT)
Tom qab ntawd, lo lus nug yog, dab tsi yog kev sib piv ua ke hauv Anova? Yog ib txoj kev omnibus ANOVA ntsuam xyuas seb puas muaj qhov sib txawv tseem ceeb ntawm txhua pawg, kev sib piv tuaj yeem siv los txiav txim siab qhov sib txawv ntawm pawg twg yog qhov tseem ceeb.
Ib sab ntawm qhov no, qhov kev xeem ntawv hoc qhia dab tsi rau koj?
Vim post hoc xeem yog khiav kom paub tseeb tias qhov sib txawv tshwm sim ntawm pawg, lawv yuav tsum tsuas yog khiav thaum koj muaj ib qho qhia tag nrho qhov sib txawv tseem ceeb hauv pab pawg txhais tau tias (piv txwv li, ib qho txiaj ntsig tseem ceeb ntawm ANOVA).
Puas yog Bonferroni qhov kev xeem tom qab hoc?
05, tab sis tsis tas li), thiab K yog tus naj npawb ntawm kev sib piv (statistical kuaj ). Cov Bonferroni yog tej zaum qhov feem ntau siv pos hoc test , vim nws hloov tau yooj yim, yooj yim heev rau xam, thiab tuaj yeem siv nrog txhua hom kev txheeb cais xeem (e.g., correlations) - tsis yog xwb post hoc xeem nrog ANOVA.
Pom zoo:
Dab tsi yog lub tswv yim ntawm kev txhawb nqa ntawm kev sib cais ntawm kev sib deev?
Kev txhawb zog yog cov txheej txheem los ntawm kev xaiv ntuj tsim kom muaj kev sib cais ntawm kev sib deev. Kev txhawb zog tuaj yeem tshwm sim raws li hauv qab no: Thaum ob pawg neeg uas tau khaws cia sib nrug, rov qab los rau hauv kev sib cuag, qhov kev sib cais ntawm cov menyuam yaus yuav ua tiav lossis tsis tiav. Yog tias nws ua tiav, speciation tau tshwm sim
Dab tsi yog ib qho piv txwv ntawm cov khoom sib txuas ntawm kev sib npaug?
Kev rho tawm (Tsis yog Commutative) Tsis tas li ntawd, kev faib, kev sib xyaw ntawm cov dej num thiab cov lej sib npaug yog ob qho piv txwv zoo uas tsis yog kev sib txuas
Dab tsi yog qhov sib txawv ntawm qhov sib txawv ntawm cov kab sib txuas thiab ntau qhov sib piv?
6. (2 lub cim) Qhov sib txawv ntawm cov kab sib txuas (kev sib piv) thiab ntau qhov sib piv yog dab tsi? Cov kab sib xyaw ua ke yog npaj sib piv; uas yog, tshwj xeeb txhais tau tias yog ua ke nyob rau hauv ntau txoj kev thiab contrasted nrog rau lwm yam kev sib txuas ntawm txhais tau tias
Cov piv txwv ntawm kev sib nqus sib nqus yog dab tsi?
Tsis yog tag nrho cov hlau yog hlau nplaum; kub, nyiaj thiab txhuas yog ib co piv txwv. Ib qho kev sib txawv loj ntawm kev siv tshuab yog siv los cais cov khoom sib nqus. Thaum sib nqus sib nqus, cov hlau nplaum nyob hauv ob lub nruas sib nqus uas dais kua
Dab tsi yog qhov kev sib piv ntawm kev sib piv?
Kev sib piv-kev sib piv (UNI EN ISO 5495) xav txiav txim siab seb ob yam khoom sib txawv ntawm tus cwj pwm, xws li qab zib, crispness, yellowness, thiab lwm yam. nyob rau hauv txhua rooj plaub