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Evaluating the Performance of the Uncorrected and Corrected Reliability Alpha for Range Restriction and the Confidence Intervals in a Single and Meta-Analytic Study
DownloadSpring 2013
Range restriction has long been a methodological problem in educational and psychological research (Hunter & Schmidt, 2004), and this usually leads to a downward-biased estimate of a statistic. Even though much research has examined the performance of Pearson’s correlation under range restriction...
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Evaluation of Frailty Assessment Tools and their Measurement Properties in Chronic Kidney Disease
DownloadSpring 2022
Background: Frailty is three to seven times more common in people with chronic kidney disease (CKD) than in those with normal kidney function. Although frailty and its impact in CKD is well-recognized, the measurement properties of the tools used to assess this syndrome are not known. The aim of...
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Fall 2015
Pneumatic tires are costly components of large off-road haul trucks used in surface mining operations. Tires are prone to premature damage during operation which can lead to hazard events and injury of personnel, loss of equipment and reduced productivity. Currently, monitoring of tire condition...
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Fall 2010
Commonly in clinical settings, the patient’s posture is visually evaluated by the clinician using anatomical landmark references. However, this measurement is subjective and not quantifiable. Photogrammetry to assess posture was thought to be a possible good clinical alternative to the other...
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Fall 2010
Because of their high strength to weight ratio, stiffened steel plates are often used in light structures where plates are placed into compression. The stability of steel plates stiffened with longitudinal tee-shaped stiffeners and subjected to uniaxial compression or combined axial compression...
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Fall 2009
In the refining industry, the cost of a power system interruption is dominated by an associated loss of production. Power distribution within a refinery includes a set of production units within a highly inter-dependent process, where the outage of a single unit affects the production of...
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Reliability and Effect of Arm Positions Used During Imaging on Spinal Alignment Parameters in Healthy and Adolescent Idiopathic Scoliosis Populations
DownloadSpring 2024
Adolescent idiopathic scoliosis (AIS) is a 3D spine disorder with lateral curvature, vertebral rotation, and sagittal changes. AIS affects 2-3% of the adolescent population. Adolescents with progressive idiopathic scoliosis receive numerous x-rays throughout their treatment, exposing them to...
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Spring 2015
Service reliability is an important indicator of transit performance, and has been the subject of much attention in both the research and practice for decades. Reliability of bus service depends on variations in service characteristics such as travel time, schedule adherence, headway, and wait...
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Reliability of Three-dimensional Ultrasound Parameters and Their Correlation with the Progression of Adolescent Idiopathic Scoliosis
DownloadFall 2016
Adolescent idiopathic scoliosis (AIS) is a three-dimensional (3D) spinal deformity with unknown causes and with prevalence of 1.5 - 3% of adolescents. If AIS is left untreated, it may progress, leading to back pain, cardiopulmonary problems, and psychosocial concerns, and eventually resulting in...
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Spring 2010
Fatigue assessments have been carried out predominantly with quasi-deterministic approaches, such as the use of S–N curves. However, both the loading and the resistance of fatigue prone components are subjected to significant uncertainties. Consequently, a prediction of the remaining fatigue life...