Final answer:
In the neo-Bernsteinian model of skill acquisition, the phase characterized by the learner attempting to simplify the movement problem by freezing out a portion of the available degrees of freedom is the Simplification phase.
Step-by-step explanation:
In the neo-Bernsteinian model of skill acquisition, the phase characterized by the learner attempting to simplify the movement problem by freezing out a portion of the available degrees of freedom is called the Simplification phase.