Page 180 - DEDU504_EDUCATIONAL_MEASUREMENT_AND_EVALUATION_HINDI

'kSf{kd ekiu rFkk ewY;kadu

uksV 'krka'k vad dh rjg bu vadksa dks fodflr jgus osQ fy;s izkIrkadksa dks izkekf.kd vadksa (Scores) esa ifjofrZr
fd;k tkrk gSA izkekf.kd vadksa esa ifjofrZr djus osQ fy;s fuEufyf[kr lw=k dk iz;ksx fd;k tkrk gSA
−
izkIrkad eè;eku (X − M )
izkekf.kd vad = Z =
izekf.kd fopyu σ
izkekf.kd vadksa dk ifjorZu ,d js[kh; ifjorZu dk mnkgj.k gS 'krka'k vadksa esa tks forj.k fn;k x;k gS mls
izkekf.kd vadksa esa Hkh ifjofrZr fd;k tk ldrk gSA blosQ fy;s mldk eè;eku rFkk izkekf.kd fopyu Kkr djuk
gksxkA x.kuk djus ij mldk eè;eku 54.40 rFkk izkekf.kd fopyu 15.80 gSA bu lkaf[;fd;ksa dh lgk;rk ls
mijksDr lw=k dk iz;ksx djosQ izkIrkadksa dks izkekf.kd vadksa esa ifjofrZr dj ldrs gSaA ftudh x.kuk v/ksfyf[kr gSμ

izkIrkad x.kuk izkekf.kd vad
(Raw Score) (Calculation) (Standard Score)

5 ...Z = – 3.12σ
5
.
10 − 54 40
10 Z = 15 80 = – 2.80σ
10
.
15 ...Z = – 2.50σ
15
.
20 − 54 40
20 Z = 15 80 = – 2.18
20
.
25 ...Z = – 1.86σ
25
30 − 54 40
.
30 Z = 15 80 = – 1.54σ
30
.
35 ...Z = – 1.23σ
35
40 − 54 40
.
40 Z = = – 0.91σ
.
40 15 80
45 ...Z = – 0.69σ
45
50 − 54 40
.
50 Z = 15 80 = – 0.28σ
50
.
55 ...Z = – 0.04σ
55
.
60 − 54 40
60 Z = 15 80 = – 0.35σ
.
60
65 ...Z = – 0.67σ
60
.
70 − 54 40
70 Z = 15 80 = 1.00σ
.
70
75 ...Z = 130σ
75
80 − 54 40
.
80 Z = 15 80 = 1.62σ
.
80
85 ...Z = 1.94σ
85
.
90 − 54 40
90 Z = = 2.25σ
.
90 15 80
95 ...Z = 2.57σ
95
100 − 54 40
.
100 Z 100 = 15 80 = 2.90σ
.
bl lw=k osQ iz;ksx ls izkIrkadksa dks izkekf.kd vadksa esa :ikUrfjr dj fy;k tkrk gSA mi;ksx dh lqfo/k gsrq ,d
rkfydk Hkh rS;kj dj yh tkrh gSA bu izkIrkadksa osQ izkekf.kd vadksa dks ,d rkfydk esa ;gk¡ O;ofLFkr fd;k
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