Lub hom phiaj ntawm kev xeem tom qab hoc hauv Anova yog dab tsi?
Lub hom phiaj ntawm kev xeem tom qab hoc hauv Anova yog dab tsi?

Video: Lub hom phiaj ntawm kev xeem tom qab hoc hauv Anova yog dab tsi?

Video: Lub hom phiaj ntawm kev xeem tom qab hoc hauv Anova yog dab tsi?
Video: Tiv Kev Txomnyem ~ 3-19-2022 || Dr. Xeev Ntxawg Xoom 2024, Kaum ib hlis
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Post hoc xeem yog ib feem tseem ceeb ntawm ANOVA . Txawm li cas los xij, ANOVA Cov txiaj ntsig tsis txheeb xyuas qhov sib txawv tshwj xeeb ntawm cov khub txhais tau tias tseem ceeb. Siv post hoc xeem txhawm rau tshawb nrhiav qhov sib txawv ntawm ntau pab pawg txhais tau tias thaum tswj qhov kev sim-paub qhov ua yuam kev.

Yog li ntawd, lub hom phiaj ntawm kev xeem tom qab hoc yog dab tsi?

Vim post hoc xeem yog khiav kom paub tseeb tias qhov sib txawv tshwm sim ntawm pab pawg, lawv yuav tsum tsuas yog khiav thaum koj muaj ib tug qhia tag nrho cov statisticically sib txawv nyob rau hauv pab pawg neeg txhais tau tias (piv txwv li, ib tug statisticically tseem ceeb ib-txoj kev ANOVA tshwm sim).

Ib sab saum toj no, post hoc tsom xam txhais li cas? Hauv kev tshawb fawb tshawb fawb, post hoc tsom xam (los ntawm Latin pos hoc , " tom qab qhov no") suav nrog statistical tsom xam uas tau teev tseg tom qab cov ntaub ntawv tau pom. Qhov no feem ntau tsim teeb meem kev sim ntau yam vim tias txhua qhov muaj peev xwm tsom xam yog ua tau zoo ib qho kev sim ntsuas.

Ib sab saum toj no, qhov kev xeem post hoc yog dab tsi thiab thaum twg nws siv?

Post hoc (“ tom qab no hauv Latin) kuaj yog siv txhawm rau nthuav tawm qhov sib txawv ntawm peb lossis ntau pawg txhais tau tias thaum kev txheeb xyuas qhov sib txawv (ANOVA) F xeem yog qhov tseem ceeb.

Bonferroni post hoc xeem siv rau dab tsi?

Holm's sequential Bonferroni ncej - hoc tes yog ib qho kev kho tsis nruj rau ntau qhov kev sib piv. Saib: Holm- Bonferroni txoj kev rau ib tug step-by-step piv txwv. Zoo li Tukey's, qhov no ncej - hoc tes txheeb xyuas cov qauv txhais tau tias txawv ntawm ib leeg. Newman-Keuls siv sib txawv tseem ceeb qhov tseem ceeb rau kev sib piv khub ntawm txhais tau tias.

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