3 research outputs found
Establishing a metacognitive model for instrumental music assessment
Traditional instrumental music assessment models may often contain the inclusion of
grades that are based upon non-musical criteria. This type of grading leads to difficulties
in assessment validity, reliability and fairness, and do not lead to an increase in
metacognitive abilities that develop students’ technique and musicianship. A
metacognitive assessment model that is based upon assessments for, as, and of learning is
needed as metacognitive musical learning potentially aids students in developing the
skills necessary to become independent musicians who can identify and address
challenges in their own performance. Through the use of feedback, reflection and goal
setting, modeling and self-assessment, teacher instructed strategies, a consideration of
students’ bio-ecology, and a consistent focus upon the constructs that need to be assessed,
assessment tools have been designed to help develop student metacognition and foster
greater independence, musicianship, and skill in instrumental music students
Measurement of the - and -Dependence of the Asymmetry on the Nucleon
We report results for the virtual photon asymmetry on the nucleon from
new Jefferson Lab measurements. The experiment, which used the CEBAF Large
Acceptance Spectrometer and longitudinally polarized proton (NH) and
deuteron (ND) targets, collected data with a longitudinally
polarized electron beam at energies between 1.6 GeV and 5.7 GeV. In the present
paper, we concentrate on our results for and the related ratio
in the resonance and the deep inelastic regions for our lowest
and highest beam energies, covering a range in momentum transfer from
0.05 to 5.0 GeV and in final-state invariant mass up to about 3 GeV.
Our data show detailed structure in the resonance region, which leads to a
strong --dependence of for below 2 GeV. At higher , a
smooth approach to the scaling limit, established by earlier experiments, can
be seen, but is not strictly --independent. We add
significantly to the world data set at high , up to . Our data
exceed the SU(6)-symmetric quark model expectation for both the proton and the
deuteron while being consistent with a negative -quark polarization up to
our highest . This data setshould improve next-to-leading order (NLO) pQCD
fits of the parton polarization distributions.Comment: 7 pages LaTeX, 5 figure