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Effects of different assessment procedures on tertiary students' approaches to studying /Tang, Kim-chow, Catherine. January 1991 (has links)
Thesis (Ph. D.)--University of Hong Kong, 1991.
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Validity evaluation in foreign language assessmentNorris, John M. January 2004 (has links)
Thesis (Ph. D.)--University of Hawaii at Manoa, 2004. / Includes bibliographical references (leaves 522-572).
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Investigating and improving assessment practices in Physics in secondary schools in MozambiqueJanuário, Francisco Maria. January 2008 (has links)
Thesis (PhD(Curriculum Studies))-University of Pretoria, 2008. / Includes bibliographical references.
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An investigation into the effects of diagnostic assessment on students' learning a case study of the effects of diagnostic assessment on secondary 4 students' learning of chemistry /Chan, Wai-fat. January 1996 (has links)
Thesis (M.Ed.)--University of Hong Kong, 1996. / Includes bibliographical references (leaves 96-102). Also available in print.
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Examining oral English proficiency some factors affecting rater reliability in the use of English oral examination /Fullilove, John Pope III. January 1992 (has links)
Thesis (M.Ed.)--University of Hong Kong, 1992. / Includes bibliographical references (leaf 137-147) Also available in print.
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An examination of stream reaeration coefficients and hydraulic conditions in a pool-and-riffle streamSmoot, James Lloyd January 1988 (has links)
Oxygen transfer between flowing surface waters and the atmosphere can be mathematically described as a first-order reaction and is known as stream reaeration. The first-order rate coefficient or stream reaeration coefficient is a necessary input parameter to stream water-quality models and is partially controlled by the hydraulic conditions of the stream. These coefficients may vary for a given stream reach because of varying hydraulic characteristics brought about by streamflow changes.
Hydraulic measurements and reaeration coefficient determinations were made on four pool-and-riffle reaches of Middle Fork Beargrass Creek near Louisville, Kentucky using the hydrocarbon gas tracer technique. Measurements were made on each reach for up to seven streamflow conditions ranging from extremely low to medium. Contrary to published findings applicable to reaches not characterized by a series of pools and riffles, the reaeration coefficient was shown to increase with increasing streamflow for all four reaches studied. Therefore, stream water-quality models developed for these, or similar, stream reaches using reaeration coefficients determined at normal streamflow conditions may over estimate the influence of atmospheric reaeration under a much lower flow condition, such as extreme low flow--the selected critical condition for which water-quality models are commonly developed.
Twenty-five published equations used for estimating stream reaeration coefficients were evaluated using the measured hydraulic and reaeration data and were shown to generate highly variable and generally inaccurate predictions. Over half of the equations generated mean prediction errors of more than 50 percent. The best equation overall generated a mean prediction error of 15 percent. The equations were also shown to be highly sensitive to the methods used for determining the input parameter values.
Four equations were statistically developed from the data collected in this research. Two of the equations provided more accurate estimates for the four studied reaches than any of the 25 published equations. Mean prediction errors for the two were 1.2 and 9.2 percent. For verification, the developed equations were also evaluated against the 25 published equations using published reaeration and hydraulic data from 39 hydrocarbon gas tracer measurements on other streams. The two developed equations which were most accurate for the four study reaches were also determined to be superior to all of the 25 published equations using the verification data. Mean prediction errors for the two equations using the verification data were 2.3 and 5.5 percent. / Ph. D.
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Immediate check-up devices and their value in learningMarx, Lawrence Norbert. January 1933 (has links)
Call number: LD2668 .T4 1933 M34
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Progressive validation of test items on the basis of internal consistencyGoodfellow, Earl Todd. January 1938 (has links)
Call number: LD2668 .T4 1938 G61
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479 |
Microwave measurements of dielectric properties of some polar liquidsCrawford, John Clark. January 1959 (has links)
Call number: LD2668 .T4 1959 C73
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480 |
Microwave measurements of the electric dipole moment and other dielectric properties of some organic compoundsWindle, Warren Floyd. January 1961 (has links)
Call number: LD2668 .T4 1961 W55
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