Figure 2. In a factorial design, participant's tilt (β = 20° or 60°, red and blue boxes, respectively) was crossed with ball acceleration (a = 2.397 or 6.068 m s^–2, red or blue arrows respectively).

A and D (or B and C) denote conditions coherent (or incoherent) with physics. [Color figure can be viewed at wileyonlinelibrary.com]