R version 4.5.1 (2025-06-13 ucrt)
Platform: x86_64-w64-mingw32/x64
Running under: Windows 10 x64 (build 19045)

Matrix products: default
  LAPACK version 3.12.1

locale:
[1] C
system code page: 65001

time zone: America/New_York
tzcode source: internal

attached base packages:
[1] stats4    stats     graphics  grDevices utils     datasets  methods  
[8] base     

other attached packages:
[1] jsonlite_2.0.0 lpSolve_5.6.23 mirt_1.47      lattice_0.22-7

loaded via a namespace (and not attached):
 [1] GPArotation_2025.3-1 future_1.67.0        generics_0.1.4      
 [4] class_7.3-23         listenv_0.9.1        digest_0.6.37       
 [7] magrittr_2.0.4       grid_4.5.1           splines2_0.5.4      
[10] beepr_2.0            R.oo_1.27.1          qs2_0.3.1           
[13] Matrix_1.7-3         R.utils_2.13.0       sessioninfo_1.2.3   
[16] brio_1.1.5           e1071_1.7-16         gridExtra_2.3       
[19] audio_0.1-12         mgcv_1.9-3           dcurver_0.9.3       
[22] permute_0.9-10       pbapply_1.7-4        codetools_0.2-20    
[25] cli_3.6.5            rlang_1.1.6          R.methodsS3_1.8.2   
[28] parallelly_1.45.1    future.apply_1.20.0  splines_4.5.1       
[31] vegan_2.7-2          tools_4.5.1          parallel_4.5.1      
[34] dplyr_1.1.4          globals_0.18.0       Deriv_4.2.0         
[37] vctrs_0.6.5          R6_2.6.1             proxy_0.4-27        
[40] lifecycle_1.0.5      SimDesign_2.27       stringfish_0.19.2   
[43] MASS_7.3-65          cluster_2.1.8.1      pkgconfig_2.0.3     
[46] clipr_0.8.0          gtable_0.3.6         progressr_0.17.0    
[49] RcppParallel_6.2.1   pillar_1.11.1        glue_1.8.0          
[52] Rcpp_1.1.0           tibble_3.3.0         tidyselect_1.2.1    
[55] nlme_3.1-168         testthat_3.2.3       compiler_4.5.1      
Seed: 2026
Training: rows 1:800; holdout: rows 801:1200
Simulated response copying pairs: 1/2 and 3/4; probability .45
Positive Q3 > .20 screen; no readability constraint or DIF analysis
Sum-score posterior SD is individual score uncertainty, not SE of a sample mean
