What is in vivo experimentation?
Rigorous experimentation with laboratory-quality methods in real classroom settings. Features of an in vivo learning experiment include: extending realism to an existing laboratory result, extending rigor to an existing classroom result, extending generalization to a result from a different domain, using rigorous experimental design features like random assignment, using technology to provide tight control on the micro-structure of instruction, making use of fine-grained longitudinal data by analyzing second-by-second interactions happening over weeks, and coding and analyze such data in terms of general cognitive theory and a specific theory of domain knowledge. It is precisely these features that PSLC allows researchers to more easily address as never before.
