Improving Students' Understanding of Quantum Measurement Part 1:   Investigation of Difficulties
  We describe the difficulties that advanced undergraduate and graduate students have with quantum measurement within the standard interpretation of quantum mechanics. We explore the possible origins of these difficulties by analyzing student responses to questions from both surveys and interviews. Results from this research are applied to develop research-based learning tutorials to improve students' understanding of quantum measurement. 
Guangtian Zhu and Chandralekha Singh
physics.ed-ph