Further experiments that varied dynamic aspects of the water tilting task (Schwartz, 1999) indicate
that adults solve this task by using dynamic imagery of the whole tilting movement rather than
merely picturing the final orientation of the glass based on geometric considerations. These experiments
also showed that when participants completed the water tilting task after a verbal judgment,
their tilts not only were incorrect but also did not correspond to their judgments. Their initial judgment
caused inaccurate tilting, so that most participants tilted the wide glass farther or both glasses
to the same angle. However, the activation of people’s beliefs interfered with, rather than guided, their
actions. Even participants who spontaneously mentioned that they had tried to tilt in accordance with
their judgments showed no superior fit between judgments and tilts. Conversely, initial tilts did not
have any effect on subsequent judgments.