Page 87 - DEDU504_EDUCATIONAL_MEASUREMENT_AND_EVALUATION_HINDI

bdkbZ—6% oSèkrkμ izdkj] fofèk;k¡ rFkk mi;ksfxrk

uksV

tcfd r xy = oSèkrk xq.kd
r = fo'oluh;rk xq.kd
xx
n = ijh{k.k ds vkdkj dh o`f¼
r n(xy) = o`f¼ gqbZ oSèkrk xq.kd
mnkgj.kkFkZ&,d ijh{k.k dh oSèkrk xq.kd -50 rFkk fo'oluh;rk xq.kd -90 gSA ;fn ijh{k.k dk vkdkj c<+kdj
nqxquk dj fn;k tk;s rks mldh oSèkrk Kkr dhft,A
2 × .50 . 100
r ny) = = . 052
(
x
22 (– ).90 . 380
1
2
+
,d ijh{k.k dk vkdj nqxquk djus ij oSèkrk xq.kd esa o`f¼ -02 dh gqbZA
(2) ijh{k.k dh xR;kRedrk (Speededness of the Test)μijh{k.k dh oSèkrk vkSj mldh xR;kRed dk xgu
lEcUèk gksrk gSA ;fn ijh{k.k dh iz'kklu dh vofèk dks c<+k fn;k tk;s rks ijh{k.k dh xR;kRedrk (Speededness)
de gks tkrh gS vkSj oSèkrk xq.kd c<+rk gS vkSj ;fn mldh iz'kklfud vofèk de dj nh tk;s rks xR;kRedrk
c<+rh gS vkSj oSèkrk xq.kd de gksrk gSA bl izdkj ijh{k.k dh xR;kRedrk mldh oSèkrk dks izHkkfor djrh gSA

(3) lewg dh ltkrh;rk (Homegeneity of the Sample)μijh{k.k ftl lewg dks fn;k tkrk gS mldh
ltkrh;rk vkSj fotkrh;rk oSèkrk dks izHkkfor djrh gSA ;fn lewg ds Nk=k ltkrh; gS rks oSèkrk xq.kd vfèkd
gksxk vkSj ;fn lewg ds Nk=k fotkrh; gSa rks oSèkrk xq.kd de gksxkA bl izdkj lewg dh fotkrh;rk c<+us ls oSèkrk
xq.kd de gksrk tkrk gSA bl dkjd dks lw=k ls Li"V dj ldrs gSaμ

σ 2 dkjd pfjrk
r xy ef =
σ 2 x lEiw.kZ pfjrk

tcfd r xy = ijh{k.k oSèkrk xq.kd

σ 2 ef = lEefyr dkjd pfjrk ijh{k.k

σ 2 x = lewg dh pfjrk (fotkrh;rk)

bl lw=k esa tks Hkktd gS og lewg dh fotkrh;rk dh lkaf[;dh; pfjrk gSA blds c<+us ls oSèkrk xq.kd de gksxkA
(4) vLi"V funsZ'ku (Ambiguous Instructions)μijh{k.k ds iz'kklu esa tks funssZ'k fn;s tkrs gSa muesa le:irk
rFkk Li"Vrk gksuh pkfg,A ;fn ;g funsZ'ku Li"V ugha gS rks ijh{k.k dh oSèkrk izHkkfor gksxhA vFkkZr~ okLrfod oSèkrk
ls izkIr dh gqbZ oSèkrk de gksxhA vr% ijh{k.k nsrs le; ftu funsZ'kksa dk iz;ksx fd;k tk;s og Hkh izekf.kd gksus
pkfg,A
(5) lkekftd ,oe~ lkaLo`Qfrd vUrj dk izHkko (Socio-cultural difference)μlekt ds fofHkUu lewgksa
dks ijh{k.k fn;k tkrk gS rks muds izkIrkadksa ij muds vkfFkZd] lkekftd o lkaLo`Qfrd i{kksa dk izHkko iM+rk gS
tks ml ijh{k.k dh oSèkrk dks izHkkfor djrk gSA vr% fdlh ijh{k.k dks cukrs le; ;g lkoèkkuh j[kuh pkfg,
fd ijh{k.k ds inksa dk Lo:i ,slk gks ftu ij lkaLo`Qfrd] lkekftd og vkfFkZd i{kksa dk de ls de izHkko
gksA tc dksbZ ijh{k.k lkaLo`Qfrd rFkk lkekftd lhekvksa dks ikj dj ysrk gS rc Hkh ijh{k.k dh oSèkrk izHkkfor
ugha gksrh gSA ijUrq ,slk djuk lEHko ugha gksrk gSA

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