Applied Regression Analysis by John Fox Chapter 9: Statistical theory for linear models

page 209

GET FILE='D:friendly.sav'.
if cond = "SFR" c1 = 1.

if cond = "Before"  c1 = .5.

if cond = "Meshed" c1 = -.5.

execute.
UNIANOVA

  correct BY c1

  /DESIGN = c1.

**Between-Subjects Factors**
		N
C1	-.50	10
	.50	10
	1.00	10

**Tests of Between-Subjects Effects**

Dependent Variable: Number correct (of 40)
Source	Type III Sum of Squares	df	Mean Square	F	Sig.
Corrected Model	264.600(a)	2	132.300	4.341	.023
Intercept	35707.500	1	35707.500	1171.591	.000
C1	264.600	2	132.300	4.341	.023
Error	822.900	27	30.478
Total	36795.000	30
Corrected Total	1087.500	29
a R Squared = .243 (Adjusted R Squared = .187)