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R version 2.4.0 beta (2006-09-25 r39510)
Copyright (C) 2006 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> library(mlmRev)
Loading required package: lme4
Loading required package: Matrix
Loading required package: lattice
> options(show.signif.stars = FALSE)
> (fm1 <- lmer(math ~ year + (1|childid) + (1|schoolid), egsingle))
Linear mixed-effects model fit by REML 
Formula: math ~ year + (1 | childid) + (1 | schoolid) 
   Data: egsingle 
   AIC   BIC logLik MLdeviance REMLdeviance
 16767 16795  -8380      16747        16759
Random effects:
 Groups   Name        Variance Std.Dev.
 childid  (Intercept) 0.66992  0.81849 
 schoolid (Intercept) 0.18693  0.43235 
 Residual             0.34700  0.58907 
number of obs: 7230, groups: childid, 1721; schoolid, 60

Fixed effects:
             Estimate Std. Error t value
(Intercept) -0.780482   0.061088  -12.78
year         0.746123   0.005396  138.26

Correlation of Fixed Effects:
     (Intr)
year -0.031
> (fm2 <- lmer(math ~ year + (1|childid) + (year|schoolid), egsingle))
Linear mixed-effects model fit by REML 
Formula: math ~ year + (1 | childid) + (year | schoolid) 
   Data: egsingle 
   AIC   BIC logLik MLdeviance REMLdeviance
 16494 16536  -8241      16472        16482
Random effects:
 Groups   Name        Variance Std.Dev. Corr  
 childid  (Intercept) 0.672304 0.81994        
 schoolid (Intercept) 0.166812 0.40843        
          year        0.011584 0.10763  0.443 
 Residual             0.324516 0.56966        
number of obs: 7230, groups: childid, 1721; schoolid, 60

Fixed effects:
            Estimate Std. Error t value
(Intercept) -0.77709    0.05823  -13.34
year         0.76296    0.01533   49.76

Correlation of Fixed Effects:
     (Intr)
year 0.358 
> (fm3 <- lmer(math ~ year + (year|childid) + (1|schoolid), egsingle))
Linear mixed-effects model fit by REML 
Formula: math ~ year + (year | childid) + (1 | schoolid) 
   Data: egsingle 
   AIC   BIC logLik MLdeviance REMLdeviance
 16529 16571  -8259      16505        16517
Random effects:
 Groups   Name        Variance Std.Dev. Corr  
 childid  (Intercept) 0.648102 0.80505        
          year        0.021517 0.14669  0.463 
 schoolid (Intercept) 0.153679 0.39202        
 Residual             0.301196 0.54881        
number of obs: 7230, groups: childid, 1721; schoolid, 60

Fixed effects:
             Estimate Std. Error t value
(Intercept) -0.793071   0.056099  -14.14
year         0.747158   0.006357  117.54

Correlation of Fixed Effects:
     (Intr)
year 0.065 
> (fm4 <- lmer(math ~ year+(year|childid)+(year|schoolid), egsingle))
Linear mixed-effects model fit by REML 
Formula: math ~ year + (year | childid) + (year | schoolid) 
   Data: egsingle 
   AIC   BIC logLik MLdeviance REMLdeviance
 16353 16408  -8168      16326        16337
Random effects:
 Groups   Name        Variance Std.Dev. Corr  
 childid  (Intercept) 0.640472 0.80030        
          year        0.011258 0.10611  0.551 
 schoolid (Intercept) 0.168556 0.41056        
          year        0.011264 0.10613  0.398 
 Residual             0.301432 0.54903        
number of obs: 7230, groups: childid, 1721; schoolid, 60

Fixed effects:
            Estimate Std. Error t value
(Intercept)  -0.7792     0.0583  -13.36
year          0.7631     0.0154   49.56

Correlation of Fixed Effects:
     (Intr)
year 0.356 
> q("no")