Abstract

A new kind of apparatus was used which allowed cubes released at the top to roll successively into 3 throwing areas, in each of which the S attempted to will the cubes to go to a designated side of a center line. Only those cubes which were placed in accordance with the S\'s wish in the upper 2 tiers were allowed to continue rolling to end up on the bottom throwing surface. The bottom tier was divided also into equal target and nontarget areas (alternated in a balanced manner to control against physical bias). A significantly high number of the cubes reaching the bottom tier ended up on the target half of that surface.