Cumulative Link Mixed Model fitted with the Laplace approximation

formula: depvar ~ Difficulty * Sound + (1 + Difficulty + Sound | pp) +      (1 | stim)
data:    datafile3

 link  threshold nobs logLik  AIC     niter      max.grad cond.H 
 logit flexible  550  -665.19 1368.38 1568(7911) 8.67e-04 1.7e+02

Random effects:
 Groups Name            Variance Std.Dev. Corr                 
 pp     (Intercept)     3.0032   1.7330                        
        Difficulty2Hard 0.1132   0.3365   -0.163               
        Sound1Quiet     0.3220   0.5675   -0.425  0.114        
        Sound3CS        1.8879   1.3740   -0.500 -0.122  0.063 
 stim   (Intercept)     0.0000   0.0000                        
Number of groups:  pp 24,  stim 19 

Coefficients:
                             Estimate Std. Error z value Pr(>|z|)  
Difficulty2Hard              0.144035   0.301045   0.478    0.632  
Sound1Quiet                  0.513870   0.295457   1.739    0.082 .
Sound3CS                    -0.002925   0.406960  -0.007    0.994  
Difficulty2Hard:Sound1Quiet -0.538155   0.404889  -1.329    0.184  
Difficulty2Hard:Sound3CS    -0.415345   0.447161  -0.929    0.353  
---
Signif. codes:  0 *** 0.001 ** 0.01 * 0.05 . 0.1   1

Threshold coefficients:
    Estimate Std. Error z value
1|2  -2.0312     0.4194  -4.843
2|3  -0.4662     0.4088  -1.140
3|4   1.0571     0.4110   2.572
