Hauv kev tshawb fawb txog kev puas siab puas ntsws, peb siv Cohen's (1988) cov lus cog tseg los txhais cov txiaj ntsig loj. Qhov sib txawv coefficient ntawm. 10 yog xav tias sawv cev rau ib lub koom haum tsis muaj zog lossis me me; kev sib txheeb coefficient ntawm. 30 yog suav tias yog kev sib txheeb nruab nrab; thiab kev sib txheeb coefficient ntawm.
Qhov kev sib txheeb coefficient sawv cev rau kev sib txheeb nruab nrab?
Kev sib txheeb coefficients uas nws magnitude nyob nruab nrab ntawm 0.5 thiab 0.7 qhia txog qhov sib txawv uas tuaj yeem suav tias muaj kev cuam tshuam. Correlation coefficients uas nws qhov loj yog nyob nruab nrab ntawm 0.3 thiab 0.5 qhia qhov sib txawv uas muaj qhov sib txheeb tsawg.
Is 0.3 Ib nrab kev sib raug zoo?
Tus nqi ntawm 0 thiab 0.3 (0 thiab −0.3) qhia qhov tsis muaj zog zoo (tsis zoo) kev sib raug zoo los ntawm txoj cai tsis sib haum xeeb. Tus nqi nruab nrab ntawm 0.3 thiab 0.7 (0.3 thiab −0.7) qhia a nruab nrab zoo (tsis zoo) kev sib raug zoo los ntawm txoj cai fuzzy-firm linear.
Qhov kev sib txheeb coefficients sawv cev rau qhov kev sib txheeb tsis zoo nyob nruab nrab?
Correlation Coefficient=-1: Kev sib raug zoo tsis zoo. Correlation Coefficient=-0.8: Kev sib raug zoo tsis zoo. Correlation Coefficient=-0.6: Kev sib raug zoo tsis zoo.
Qhov kev sib raug zoo tshaj plaws yog qhov kev sib raug zoo me me uas qhia kev ntxhov siab tsawg dua?
Yog li, coefficient correlation ntawm – 0.5 qhia txog qhov tsis zoo sib xws ntawm cov teeb meem ntxhov siab thiab kev txaus siab rau lub neej.
