Table 4.

A model of typing difficulty limited to Bell’s (1949) predictors

Predictor	β	B	SE B	t	p
Proportion of words within high-frequency words	0.479	1.249	0.075	16.55	<.001
Keystrokes per word	–0.236	–0.114	0.021	–5.53	<.001
Syllables per word	0.051	0.073	0.059	1.24	.215
(Intercept)		–0.462	0.123	–3.76	<.001