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  -656.75 1373.49 4306(21625) 3.36e-04 3.1e+02

Random effects:
 Groups Name                        Variance Std.Dev. Corr                               
 stim   (Intercept)                 0.0000   0.0000                                      
 pp     (Intercept)                 4.0402   2.0100                                      
        Difficulty2Hard             1.7656   1.3288   -0.407                             
        Sound1Quiet                 0.3748   0.6122   -0.511  0.640                      
        Sound3CS                    4.6706   2.1612   -0.645  0.740  0.579               
        Difficulty2Hard:Sound1Quiet 1.7371   1.3180    0.023 -0.557 -0.429 -0.430        
        Difficulty2Hard:Sound3CS    6.1517   2.4803    0.536 -0.969 -0.772 -0.840  0.537 
Number of groups:  stim 57,  pp 24 

Coefficients:
                            Estimate Std. Error z value Pr(>|z|)  
Difficulty2Hard               0.1249     0.4247   0.294   0.7687  
Sound1Quiet                   0.5215     0.3102   1.681   0.0928 .
Sound3CS                     -0.1107     0.5469  -0.202   0.8396  
Difficulty2Hard:Sound1Quiet  -0.5984     0.5271  -1.135   0.2562  
Difficulty2Hard:Sound3CS     -0.2274     0.7377  -0.308   0.7579  
---
Signif. codes:  0 *** 0.001 ** 0.01 * 0.05 . 0.1   1

Threshold coefficients:
    Estimate Std. Error z value
1|2  -2.2008     0.4765  -4.619
2|3  -0.5325     0.4651  -1.145
3|4   1.0877     0.4669   2.330
