Figure 15.
Power curve for the main effect of decoding ease on reading aloud RT (Test 3) for a subset of data from Mousikou et al. [31] of items that were used in the present study, with eight items per participant to match our design. The level of power is displayed on the y-axis, and the number of participants required to achieve a certain level of power is displayed on the x-axis. The simulation calculated the average estimated level of power (and 95% confidence interval) for 11 sample sizes between 1 and 40, based on 1000 simulations each. We aimed to achieve 90% power (α = 0.05).