Tus nqi kho P yog qhov tsawg tshaj plaws ntawm tsev neeg qhov tseem ceeb ntawm qhov kev sib piv tshwj xeeb yuav raug tshaj tawm raws li qhov tseem ceeb raws li ib feemntawm ntau qhov kev sib piv. … Ib qho kev hloov kho P tus nqi cais yog xam rau txhua qhov kev sib piv hauv ib tsev neeg ntawm kev sib piv.
Koj suav li cas tus nqi kho p-tus nqi?
Ua raws li cov lus qhia ntawm Vladimir Cermak, manually ua qhov suav nrog, hloov kho p-tus nqi=p-tus nqi(tag nrho tus lej ntawm qhov kev xav tau sim)/(qeb ntawm p-tus nqi), lossis siv R raws li tau hais los ntawm Oliver Gutjahr p.
P-tus nqi vs p-tus nqi yog dab tsi?
Lwm txoj hauv kev los saib qhov txawv yog qhov p-tus nqi ntawm 0.05 txhais tau tias 5% ntawm tag nrho cov kev xeem yuav ua rau qhov tsis zoo. Ib qho FDR kho p-tus nqi (lossis q-tus nqi) ntawm 0.05 txhais tau tias5% ntawm cov kev ntsuas tseem ceeb yuav ua rau muaj qhov tsis zoo. Qhov kawg yuav ua rau muaj qhov tsis tseeb tsawg dua.
Vim li cas peb kho p-tus nqi?
Siv rau ntau qhov kev sib piv hauv ANOVA, qhov hloov pauv p-tus nqi qhia tias qhov kev sib piv theem twg hauv ib tsev neeg ntawm kev sib piv (kev ntsuas kev xav) yog qhov sib txawv. Yog tias qhov hloov kho p-tus nqi tsawg dua alpha, ces koj tsis lees paub qhov kev xav tsis zoo.
Bonferroni hloov p-tus nqi li cas?
Yuav kom tau txais Bonferroni kho / kho p tus nqi, faib tus nqi qub α-tus nqi los ntawm tus lej ntawm kev tshuaj xyuas ntawm qhov sib txawv ntawm qhov sib txawv.
