Methods
to improve the accuracy of scaling test
results
O.Y. Sokolov, O.G. Molchanova, V.G. Ivanov
Proposed paper is a continuation of
research in the
area of scaling and interpretation
of test results used in
modern test
systems. The paper
deals with methods penalty and motivation based on classical test
theory. Method for
refinement of the
results that
can improve performance quality assessment of levels of
preparedness of the subjects
as a function
of the
diversity of evaluation
points is proposed. The base of refinement is using of difficulty of
items that are used in each group with the same raw score. An illustrative
example showing the
benefits of the proposed method is given.
Keywords:
classical test
theory, the penalty
function, the
complexity of the
job, ability,
latent parameters.