> df.fit.a <- lme(value~1, random=~1|subject, data=df)
> df.fit.b <- lme(value~test + side + phase + location, random=~1|subject, data=df)
> summary(df.fit.a)
Linear mixed-effects model fit by REML
 Data: df
      AIC     BIC    logLik
  1604.43 1614.31 -799.2149

Random effects:
 Formula: ~1 | subject
        (Intercept) Residual
StdDev:   0.5872029  13.2372

Fixed effects: value ~ 1
             Value Std.Error  DF   t-value p-value
(Intercept) -7.685 0.9542529 190 -8.053421       0

Standardized Within-Group Residuals:
       Min         Q1        Med         Q3        Max
-3.7316282 -0.5566897  0.4704000  0.5886418  1.3740825

Number of Observations: 200
Number of Groups: 10
> summary(df.fit.b)
Linear mixed-effects model fit by REML
 Data: df
       AIC      BIC    logLik
  1439.337 1471.912 -709.6683

Random effects:
 Formula: ~1 | subject
        (Intercept) Residual
StdDev:    2.280891  8.83572

Fixed effects: value ~ test + side + phase + location
               Value Std.Error  DF   t-value p-value
(Intercept)  -5.7530  1.908676 183 -3.014131  0.0029
testB        14.1240  1.249559 183 11.303183  0.0000
sideR        -0.0160  1.249559 183 -0.012805  0.9898
phaseven     -2.6020  1.249559 183 -2.082334  0.0387
locationi2  -13.3400  1.975727 183 -6.751945  0.0000
locationi3  -16.3825  1.975727 183 -8.291884  0.0000
locationi4   -8.1200  1.975727 183 -4.109879  0.0001
locationi5   -0.5825  1.975727 183 -0.294828  0.7685
 Correlation:
           (Intr) testB  sideR  phasvn loctn2 loctn3 loctn4
testB      -0.327
sideR      -0.327  0.000
phaseven   -0.327  0.000  0.000
locationi2 -0.518  0.000  0.000  0.000
locationi3 -0.518  0.000  0.000  0.000  0.500
locationi4 -0.518  0.000  0.000  0.000  0.500  0.500
locationi5 -0.518  0.000  0.000  0.000  0.500  0.500  0.500

Standardized Within-Group Residuals:
       Min         Q1        Med         Q3        Max
-3.3119087 -0.5726300  0.1257032  0.7247609  2.2145151

Number of Observations: 200
Number of Groups: 10

Fixed effects: value ~ test_location + side + phase
                       Value Std.Error  DF    t-value p-value
(Intercept)         0.575833 1.8242559 179   0.315654  0.7526
test_locationA_i2 -26.255000 2.1289582 179 -12.332323  0.0000
test_locationA_i3 -30.430000 2.1289582 179 -14.293376  0.0000
test_locationA_i4 -14.615000 2.1289582 179  -6.864860  0.0000
test_locationA_i5  -2.435000 2.1289582 179  -1.143752  0.2543
test_locationB_i1   0.283917 2.1378105 179   0.132807  0.8945
test_locationB_i2  -0.141083 2.1378105 179  -0.065994  0.9475
test_locationB_i3  -2.051083 2.1378105 179  -0.959432  0.3386
test_locationB_i4  -1.341083 2.1378105 179  -0.627316  0.5313
test_locationB_i5   1.553917 2.1378105 179   0.726873  0.4683
sideR              -0.016000 0.9520991 179  -0.016805  0.9866
phaseven           -1.419583 0.9717320 179  -1.460879  0.1458
 Correlation:
                  (Intr) ts_A_2 ts_A_3 ts_A_4 ts_A_5 ts_B_1 ts_B_2 ts_B_3 ts_B_4 ts_B_5 sideR
test_locationA_i2 -0.584
test_locationA_i3 -0.584  0.500
test_locationA_i4 -0.584  0.500  0.500
test_locationA_i5 -0.584  0.500  0.500  0.500
test_locationB_i1 -0.562  0.498  0.498  0.498  0.498
test_locationB_i2 -0.562  0.498  0.498  0.498  0.498  0.504
test_locationB_i3 -0.562  0.498  0.498  0.498  0.498  0.504  0.504
test_locationB_i4 -0.562  0.498  0.498  0.498  0.498  0.504  0.504  0.504
test_locationB_i5 -0.562  0.498  0.498  0.498  0.498  0.504  0.504  0.504  0.504
sideR             -0.261  0.000  0.000  0.000  0.000  0.000  0.000  0.000  0.000  0.000
phaseven          -0.213  0.000  0.000  0.000  0.000 -0.091 -0.091 -0.091 -0.091 -0.091  0.000

Standardized Within-Group Residuals:
        Min          Q1         Med          Q3         Max
-3.22153059 -0.46606190  0.04970901  0.52432545  2.15477603

Number of Observations: 200
Number of Groups: 10