1. Allen, P. A., Smith, A. F., Lien, M., Grabbe, J., & Murphy, M. D. (2005). Evidence for an activation locus of the word-frequency effect in lexical decision. Journal of Experimental Psychology, 31, 713–721. https://psycnet.apa.org/doi/10.1037/0096-1523.31.4.713.
2. Baker, R., & Bradlow, A. (2009). Variability in word duration as a function of probability, speech style, and prosody. Language and Speech, 52, 391–413. https://doi.org/10.1177/0023830909336575.
3. Barton, K. (2020). MuMIn: multi-model inference. R package version 1.43.17. https://CRAN.R-project.org/package=MuMIn.
4. Bell, A., Brenier, J., Gregory, M., Girand, C., & Jurafsky, D. (2009). Predictability effects on durations of content and function words in conversational English. Journal of Memory and Language, 60, 92–111. https://doi.org/10.1016/j.jml.2008.06.003.
5. Bates, D., Mächler, M., Bolker, B., & Walker, S. (2015). Fitting linear mixed-effects models using lme4. Journal of Statistical Software, 67, 1–38. arXiv:1406.5823.