le 11. Summary of Stepwise Regression for PKUCS Adult WRAT-III Scores
(Possible predictors include: Age first treated, Parent IQ, Father's Education, Years on Diet, and Phe Levels at Diagnosis, 6 years, 10 years and Currently)
Dependent Variable WRAT-III READING
| Step |
Variable Entered |
Number In |
Partial
R**2 |
Model
R**2 |
F to Enter |
Prob>F |
| 1
|
Parent IQ |
1
|
0.2246
|
0.2246
|
13.3265
|
0.0007
|
| 2
|
Phe @ 6 yrs |
2
|
0.0625
|
0.2871
|
3.9465
|
0.0531
|
| 3
|
Age 1st Treated |
3
|
0.0346
|
0.3218
|
2.2458
|
0.1411
|
| 4
|
Father's Ed |
4
|
0.0338
|
0.3556
|
2.2586
|
0.1402
|
Dependent Variable WRAT-III SPELLING
| Step |
Variable Entered |
Number In |
Partial
R**2 |
Model
R**2 |
F to Enter |
Prob>F |
| 1
|
Parent IQ |
1
|
0.2990
|
0.2990
|
19.6229
|
0.0001
|
| 2
|
Phe @ 6 yrs |
2
|
0.0931
|
0.3921
|
6.8930
|
0.0118
|
| 3
|
Age 1st Treated |
3
|
0.0321
|
0.4243
|
2.4570
|
0.1242
|
| 4
|
Father's Ed |
4
|
0.0382
|
0.4625
|
3.0538
|
0.0877
|
Dependent Variable WRAT-III ARITHMETIC
| Step
|
Variable Entered
|
Number In
|
Partial
R**2
|
Model
R**2
|
F to Enter
|
Prob>F
|
| 1
|
Parent IQ |
1
|
0.3326
|
0.3326
|
22.9214
|
0.0001
|
| 2
|
Phe @ 6 yrs |
2
|
0.0382
|
0.3707
|
2.7292
|
0.1055
|
Back to Appendix B Figures and Tables
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