Table 3.

Regression coefficients from individual mixed-effects regressions predicting RT for each of the three predictors log frequency, log trigram probability, and word length

Predictor	$\beta$	Std. error	t value
Log frequency	− 2.61	0.08	− 32.27
Log trigram probability	− 2.19	0.09	− 23.90
Word length	4.21	0.12	35.72

The first column is the predictor used in a regression predicting reading time; the column $\beta$ is the fitted regression coefficient for the predictor; Std. error is the standard error on the estimate of $\beta$, and the t value is the t-statistic for the value of $\beta$ as compared to 0. We predict and find negative values of $\beta$ for log frequency and log probability and a positive effect of word length. All p values are $<0.001$