Page 96 - DEDU504_EDUCATIONAL_MEASUREMENT_AND_EVALUATION_HINDI

'kSf{kd ekiu rFkk ewY;kadu

uksV
σ = σ (1 − r u )
x
e
tcfd s = izekf.kd ekiu =kqfV gksrh gS = SE M
e
SE M = σ (1 − r u )
x
mijksDr ewyHkwr fo'oluh;rk dh ifjHkk"kk osQ vkèkkj ij pj =kqfV vFkok ekiu osQ izkekf.kd =kqfV dh x.kuk dk
lw=k fodflr fd;k x;k gSA =kqfV pj dks gh ekiu dh =kqfV (Error of measurement) dgk tkrk gSA bl =kqfV dh
igpku nks ?kVdksa ls dh tkrh gSA izFkeμiwjd =kqfV (Compensating error) rFkk f}rh;μO;fDrfu"B =kqfV
(Baised error)A
Lo&ewY;kadu (Self Assessment)

1- fuEufyf[kr dFkuksa esa ls ^lR;* vFkok ^vlR;* fyf[k, (State whether the following statements
are 'True' or 'False')μ
1. fo'oluh;rk ls pj =kqfV dk cksèk gksrk gSA

2. lkaf[;dh esa fo'oluh;rk Lo lg&lEcUèk gksrk gSA
3. fo'oluh;rk ijh{k.k dk lkekU;hÑr xq.k gksrk gSA
4. izkIrkadksa esa okLrfod vad rFkk =kqfV lfEefyr gksrs gSaA
5. fo'oluh;rk lkèkkj.kr% pkj izdkj dh gksrh gSA
6. fo'oluh;rk rFkk oSèkrk esa lEcUèk gksrk gSA

7-2 fo'oluh;rk osQ izdkj vFkok fo'oluh;rk dh fofèk;k¡ (Types of Reliability

or Methods of Computing Reliability)

fo'oluh;rk osQ izdkj rFkk fo'oluh;rk dh x.kuk djus dh fofèk ,d gh gksrh gSA tcfd oSfèkrk osQ izdkj vkSj
mldh fofèk;k¡ vyx gksrh gSA
fo'oluh;rk dh x.kuk djus osQ fy, euksoSKkfudksa us dbZ fofèk;ksa dk fodkl fd;k gSA fdlh ijh{k.k dh
fo'oluh;rk dh x.kuk djus dh izeq[k leL;k ;g gS fd okLrfod vadksa dh pfjrk dk vuqeku 'kq¼ :i esa oSQls
fd;k tk; vFkok =kqfV vad pfjrk dk vuqeku 'kq¼ :i esa dj fy;k tk;s rks okLrfod vad pfjrk fudky ldrs
gSaA fo'oluh;rk xq.kd okLrfod vad pfjrk dk va'k gksrk gSa izkIrkad pfjrk miyCèk gksrh gSA euksoSKkfudksa us
bu fofHkUu fofèk;ksa }kjk ;gh vuqeku yxkus dk iz;kl fd;k gS fd izkIrkad pfjrk esa okLrfod vad pfjrk fdruh
gks ldrh gSA tSlsμ
izkIrkad = okLrfod vad pfjrk + =kqfV pfjrk

okLrfod vdapfjrk
fo'oluh;rk xq.kd =
ikz Irkad pfjrk
ikz Irkdapfjrk − =kqfV vd
a
fo'oluh;rk xq.kd =
ikz Irkdapfjrk
2
σ− σ 2 σ 2
2
r = x 1 = e , σ = r σ 2 x
e
u
u
σ 2 x σ 2 x
2
2
2
2
2
(σ = σ + σ ), σ = σ – σ 2 1
e
x
x
1
e
fo'oluh;rk dh x.kuk esa okLrfod vad pfjrk vFkok =kqfV pfjrk dk vuqeku yxkus dk iz;kl fd;k tkrk gSA
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