Experiments in Principle for the Artscience (AS) Interpretation: Paper   II
  The physics of wavefunction collapse from Hilbert space to a classically real spacetime, accompanied by wave-particle duality, is, fundamentally, reduction of the complex psi to reality. We introduce new terminology for new physics. The superposition sigma ~ psi + phi of system and apparatus is postulated. A simple and obvious thing to test is the ensemble probability (Sect. 1). Weinberg (2005) suggests three types of experiments for energy, position, and momentum observable ensemble averages which should all be tested (Sect. 2 - 4). This Reference is intended to serve as general background for the present paper which is self-contained. 
S. L. Weinberg (Department of Physics, Academy of Artscience)