I was one of the two
psychometricians on the panel that advised the College Board on the issue of whether the SAT scores of disabled students who take the test with accommodations should be «flagged» (see Miriam Kurtzig Freedman, «Disabling the SAT,» Feature, Fall 2003).
Ho was the lead
psychometrician on the report.
Not exact matches
Psychometricians have devised tests which are empirically based
on proven theoretical foundations.
«Harvard
psychometrician and NAGB member Andrew Ho expressed concern that «unrealistically high short - term goals are a risk» that creates the incentive to focus
on the «bubble kids» in a bid to meet those goals.»
In practice,
psychometricians usually act as if ability scores are
on an equal - unit scale (or, in technical terms, an «interval» scale).
Indeed, Robert Brennan of the University of Iowa (who directs the Iowa testing programs), the
psychometrician who said «no» and voted with the minority, wrote, «Crucial evidence from prediction studies does not support a conclusion that scores
on College Board standardized tests administered with extended time to disabled students are comparable to scores
on the same tests administered to nondisabled students without extended time.»
A modest outlay, in the range of $ 10 to $ 20 million, could have dramatic potential if expended
on convening the nation's top - flight statisticians, economists, and
psychometricians to construct a research and methodological task force to buttress cost modeling strategies.
From the 1950s
on, many
psychometricians proposed hierarchical models, which may be thought of as a mixture of the single - factor and multiple - factor models.
These companies hire testing experts, called
psychometricians, to do extensive research and piloting to develop questions to include
on tests.
My colleague Dr. Jeff McLeod, Edmentum's chief
psychometrician, recently released a white paper
on the Research Base and Instructional Design of Edmentum Digital Curriculum.
A
psychometrician by formal training, Dr. Solano - Flores» work focuses
on the development of alternative, multidisciplinary approaches that address linguistic and cultural diversity in testing.
(Short aside: This is a great reference book for both
psychometricians and teachers to have
on their bookshelves.
When I worked as a
psychometrician for large testing companies, I would always conduct an item analysis
on the test questions to ensure that they were good and reliable.
Valencia and Wixson have gathered scholarship from three disparate sources to produce the first integrated review of policy - related research
on literacy education: (a) policy analyses that examine policies about literacy in the framework of systemic reform; (b) measurement and evaluation studies, conducted by
psychometricians, that examine the assessments mandated by policies; and (c) studies by literacy researchers that attend to policies and literacy - specific content.