Page 149 - DEDU504_EDUCATIONAL_MEASUREMENT_AND_EVALUATION_HINDI

bdkbZ—10% in fo'ys"k.k% in dfBurk] foHksnhdj.k lwph] fod"kZu dh izHkko'khyrk

(2) gkWjLV dk 'kqf¼ lw=k (Horst’s Formula Correction for Guessing)μgkWLV us tks lw=k fodflr fd;k uksV
gS mlesa vfèkd 'kfDr'kkyh fodYi dks egRo fn;k gSA lw=k bl izdkj gSμ
S = R – Dp ...(2)
tcfdμ S= okLrfod :i esa lgh mÙkj tkuus okyksa dh la[;k
R= lgh djus okyksa dh la[;k

Dp = lcls 'kfDr'kkyh fodYi
gkWjLV dk ;g lw=k fuEukafdr voèkkj.kkvksa ij vkèkkfjr gSμ
1- igyh voèkkj.kk ;g gS fd lHkh fodYi leku :i ls ijh{kk£Fk;ksa dks vkd£"kr ugha djrs] ijUrq muosQ
vkd"kZ.k djus dk ,d Øe gksrk gSA
2- ;g voèkkj.kk vfèkd 'kq¼ rFkk lw{e gS] D;ksafd blesa 'kfDr'kkyh fodYi dks egRo fn;k tkrk gS tks
cgq&fodYi iz'uksa osQ fy, vfèkd mi;qDr gSA

mijksDr mnkjg.k esa (l) fodYi lcls vfèkd 'kfDr'kkyh fodYi gS] D;ksafd blus lcls vfèkd Nk=kksa dks
vkd£"kr fd;k gSA ;g lgh mÙkj ls Hkh vfèkd 'kfDr'kkyh gSA D;ksafd bl in esa R = 15 rFkk Dp = 20 gSA lw=k
dk iz;ksx djus ijμ
S = R – Dp
S = 15 – 20 = 5

bldk vFkZ ;g gqvk fd bl in osQ lgh mÙkj dks dksbZ ugha tkurk] cfYd lgh tkuus okyksa dh la[;k Í.k
esa izkIr gqbZ gSA
vuqeku ls lgh djus dk lw=k iz;ksx djus ls igys ;g Hkh ns[k ysuk pkfg, fd fodYi lgh fodYi ls vfèkd
vkd"kZd u gks] ;fn ,slk gS rks muosQ p;u djus osQ ctk; mlesa lqèkkj fd;k tk,] vkSj ,sls 'kfDr'kkyh fodYi
dks gVk nsuk pkfg, vkSj mldh txg vU; fodYi fy;k tk,] tSlsμ
inμ in fo'ys"k.k dk dk;Z
(v) mÙke inksa dk p;u djuk 12
(c) vuqi;qDr inksa dks fujLr djuk 8

(l) inksa dk p;u djuk rFkk fujLr djuk 10
(n) mijksDr lHkh 20
bl in esa lgh mÙkj (n) fodYi gSA bl iz'u esa gkWjLV dk lw=k iz;ksx djus ij R = 20 rFkk Dp = 12 gSA lw=k
dk iz;ksx djus ijμ
S = R – Dp
= 20 – 12 = 8
bldk vFkZ ;g gqvk fd 50 Nk=kksa esa ls 8 Nk=k mlosQ lgh mÙkj dks okLro esa tkurs gSaA
fxyiQksMZ dk lw=k iz;ksx djus ijμ

tcfd R = 20, W = 30 rFkk n = 4

S = R – = 20 –

= 20 – 10 = 10

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