highly significantp < 1e-4
Submitting the magnitude of the PSA gain to a repeated measure ANOVA with the factors direction (horizontal/vertical), eye (right/left), and estimation approach (I/II/III) showed a highly significant main effect of the factor direction ( F (1,13) = 36.1; p < 1e-4) and no other significant ( p > 0.25) main or interaction effect.