Abstract

Extending a principle applied earlier in a "3-tier" test of psychokinesis (PK), the E tested Ss for ability to influence steel balls rolling down a long incline. The incline in this experiment provided 5 "choice" points, each with a cul-de-sac for misses and an open alley for hits, which moved on to the next lower tier. The hypothesis under test was that PK acted consistently upon individual balls, either positively or negatively, during each descent so that the elimination of the misses in the upper tiers should give a higher ratio of hits in the lower ones. This hypothesis was not supported, though there were statistically significant results (more hits than misses) in the bottom tier, a finding attributed to motivational factors.