PREDICTION BY COMBINED SCORES g 
rie = o1= 2” = 
r= oy = z 
T4= g3 = . 
Ye = o4= 
rar= 
Yaa = 
(These are equivalent to 7a, 731, etc.) 
oc o 
bo =rt—= bsg =rp— = bay =ry—= 
a2 age g4 
o o 
biz= rn = bu= ru— = b= ro— = 
a3 a4 a2 
i . gn 
a3 vg 04 
b nd bio—bi3 + bos sat b == biz—bia * bao 
12.3 I 0 . bog 13.2 I —bg . bas 
Dis nve b1a— bys bs = Uraip =e bia—bys + bao 
14.3 I ~Dss : bas 14.2 I gs 2 Da 
boo babe bu _ be Dubus bn _ 
42.3 I — bsg J bos 43.2 I — bys . bso 
yo bu=bn ba _ yo bu=bn ba _ 
24.3 A 34.2 I= ba 
b B=: bio.3— bras . bas.3 - 
Ra I—bos3 * baz.s 
bisugs= biz.o—Dbras + base _ 
15.8 = r—— TT 
I—bsus * base 
a bis.o—biz.2 + bass - 
WE 
1 —baz2 + base 
C=M,—bss My—bi3.04 M3—brs.03 Ms= 
X1=bpau Xo +bi.2uXs+bunXi+C= 
Figure 29: Outline for computing the multiple regression equation for four 
variables. 
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