Techniques for establishing the reliability and validity of assessments of student writing are
presented. Raters scored collections of elementary students' narrative writing with the holistic …

A set of methods is proposed for the analysis of opportunity to learn (OTL) in relation to
achievement in large-scale educational assessments. The focus is on how to assess the effect of …

A slit-slat collimator combines a slit along the axis of rotation with a set of axial septa, offering
both magnification in the transaxial direction and complete sampling with just a circular orbit…

… Herman had responsibility for design and conduct of the study;John R. Novak for design,conduct,
and writeup of the quantitative analyses;Shelby A. Wolf for design of the WWYR rubric …

An analytic formula is derived for the sensitivity of collimators achieving transverse collimation
with a slit and axial collimation with a slat assembly whose septa may be parallel or focus …

This report illustrates techniques for establishing the reliability and validity of assessments of
student writing. Raters scored collections of elementary students’ narrative writing with the …

Since 1987, UCLA's Center for Technology Assessment has been conducting a set of
evaluation, research, and development activities at selected Apple Classrooms of TomorrowSM (…

The formula g = wd 2 /[4pia(d+t)h] sin 2 thetas is derived for the sensitivity of a slit-slat collimator.
Both Monte Carlo and experimental data confirm the expected dependence of g on the …

Temperature Control for Helium 11* Page 1 NOTES 733 exhibits some particular characteristics
which make it slightly different from the usual vacuum spectrographs or spectrophotometers8 …

THE AMERICAN PRESENT IS AT ODDS with representations of the American past. The
American present witnesses the steady aggrandizement of executive, administrative, emergency…