yen, R. H., Davidson, D. J., &amp; Bates, D. M. (2008). Mixed-effects modeling with crossed random effects for subjects and items. <em>Journal of Memory and Language</em>, <em>59</em>(4), 390–412.
</div>
<div id="ref-Barr_2013" class="csl-entry">
Barr, D. J. (2013). Random effects structure for testing interactions in linear mixed-effects models. <em>Frontiers in Psychology</em>, <em>4</em>, 328.
</div>
<div id="ref-Barr_2017" class="csl-entry">
Barr, D. J. (2017). <span class="nocase">Generalizing over e