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Validity and reliability

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https://www.readbyqxmd.com/read/29332058/3d-surface-imaging-for-volumetric-measurement-in-people-with-obesity
#1
Sean Clarkson, Stuart W Flint, David R Broom, Matt Capehorn, Jonathan Wheat
BACKGROUND: Current methods for tracking the progress of people with obesity towards a weight loss goal appear simple and potentially misleading. A technique to quantify change in body shape whilst visualising areas of the body where weight loss occurs would be advantageous, and has the potential to be used as a motivational tool. Three-dimensional (3D) surface-imaging would serve as a good basis for such a technique, however current systems are prohibitively expensive. OBJECTIVE: Highlight the use of a cheaper alternative 3D surface-imaging system for volumetric measurement in people with obesity...
January 5, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29331859/development-of-a-method-to-determine-axitinib-lapatinib-and-afatinib-in-plasma-by-micellar-liquid-chromatography-and-validation-by-the-european-medicines-agency-guidelines
#2
Jaume Albiol-Chiva, Josep Esteve-Romero, Juan Peris-Vicente
A method based on micellar liquid chromatography to quantify the tyrosine kinase inhibitors axitinib, lapatinib and afatinib in plasma is reported. The sample pretreatment was a simple 1/5-dilution in a pure micellar solution, filtration and direct injection, without requiring extraction or purification steps. The three drugs were resolved from the matrix in 17min, using an aqueous solution of 0.07M sodium dodecyl sulfate - 6.0% 1-pentanol, buffered at pH7 with 0.01M phosphate salt as mobile phase, running under isocratic mode at 1mL/min through a C18 column...
January 2, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29331740/development-and-validation-of-a-new-population-based-simulation-model-of-osteoarthritis-in-new-zealand
#3
Ross Wilson, J Haxby Abbott
OBJECTIVE: To describe the construction and preliminary validation of a new population-based microsimulation model developed to analyse the health and economic burden and cost-effectiveness of treatments for knee osteoarthritis (OA) in New Zealand (NZ). METHOD: We developed the New Zealand Management of Osteoarthritis (NZ-MOA) model, a discrete-time state-transition microsimulation model of the natural history of radiographic knee OA. In this article, we report on the model structure, derivation of input data, validation of baseline model parameters against external data sources, and validation of model outputs by comparison of the predicted population health loss with previous estimates...
January 10, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29331712/genetic-biomarkers-for-differential-diagnosis-of-major-depressive-disorder-and-bipolar-disorder-a-systematic-and-critical-review
#4
REVIEW
Itiana Castro Menezes, Cristiane von Werne Baes, Riccardo Lacchini, Mario Francisco Juruena
Depressive symptoms are present in the depressive mood state of bipolar disorder (BPD) and major depression disorder (MDD). Often, in clinical practice, BPD patients are misdiagnosed with MDD. Therefore, genetic biomarkers could contribute to the improvement of differential diagnosis between BPD and MDD. This systematic and critical review aimed to find in literature reliable genetic biomarkers that may show differences between BPD and MDD. This systematic review followed the PRISMA-P method. The terms used to search PubMed, Scopus, PsycINFO, and Web of Science were depress*, bipolar, diagnos*, genetic*, biomark*...
January 10, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29331690/effect-of-depressive-symptoms-on-the-evolution-of-neuropsychological-functions-over-the-course-of-adolescence
#5
Mohammad H Afzali, Maeve Oleary-Barrett, Jean R Séguin, Patricia Conrod
INTRODUCTION: Comprehensive understanding of the association between depression and neuropsychological functioning over the course of adolescence requires developmentally sensitive assessment through longitudinal data. The aim of current study is to examine the concurrent and subsequent effects of depressive symptoms on the initial level and evolution of four neuropsychological functioning domains (i.e., spatial working memory, delayed recall memory, perceptual reasoning, and inhibitory control)...
December 22, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29331637/development-of-a-multi-dimensional-scale-to-measure-trauma-associated-with-child-sexual-abuse-mscsa-and-its-ramifying-impacts-on-children-a-pilot-study
#6
Vandana Choudhary, Sujata Satapathy, Rajesh Sagar
BACKGROUND: With the rising incidence of CSA in India and absence of culturally competent tool to assess the impact of trauma, there is a dire need for development of a comprehensive scale to assess the impact of trauma on children. Thus, the present study aims to develop a multi-dimensional CSA tool for children aged between 7 and 13 years. METHOD: Qualitative research method of FGD/Key Interviews with 4 group participants (Parents, counsellors, mental health and medical professionals) and in-depth interview with children having history of CSA was conducted along with item pooling from existing scales...
January 4, 2018: Asian Journal of Psychiatry
https://www.readbyqxmd.com/read/29331405/reliability-and-validity-of-the-turkish-version-of-the-consensus-auditory-perceptual-evaluation-of-voice-cape-v
#7
Esra Özcebe, Fatma Esen Aydinli, Tuğçe Karahan Tiğrak, Önal İncebay, Taner Yilmaz
OBJECTIVES: The main purpose of this study was to culturally adapt the Consensus Auditory-Perceptual Evaluation of Voice (CAPE-V) to Turkish and to evaluate its internal consistency, validity, and reliability. MATERIALS AND METHODS: The Turkish version of CAPE-V was developed, and with the use of a prospective case-control design, the voice recordings of 130 participants were collected according to CAPE-V protocol. Auditory-perceptual evaluation was conducted according to CAPE-V and Grade, Roughness, Breathiness, Asthenia, and Strain (GRBAS) scale by two ear, nose, and throat specialists and two speech and language therapists...
January 11, 2018: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/29331404/reliability-and-validity-of-the-adapted-resistance-training-skills-battery-for-children
#8
Bonnie J Furzer, Marc D Bebich-Philip, Kemi E Wright, Siobhan L Reid, Ashleigh L Thornton
OBJECTIVES: Resistance training (RT) is emerging as a training modality to improve motor function and facilitate physical activity participation in children across the motor proficiency spectrum. Although RT competency assessments have been established and validated among adolescent cohorts, the extent to which these methods are suitable for assessing children's RT skills is unknown. This project aimed to assess the psychometric properties of the adapted Resistance Training Skills Battery for Children (RTSBc), in children with varying motor proficiency...
December 29, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29331288/hallux-valgus-evaluation-on-mri-can-measurements-validated-on-radiographs-be-used
#9
Nathan Heineman, Yin Xi, Lihua Zhang, Riham Dessouky, Jed Hummel, Justin Skweres, Dane Wukich, Avneesh Chhabra
Hallux valgus (HV) is a common deformity of the great toe affecting >23% of adults in the United States. The severity of the deformity is traditionally analyzed using radiographs to determine measurements such as the HV and intermetatarsal angles. We sought to determine the relationship between the radiographic and magnetic resonance imaging (MRI) measurements because this is not yet known. Two of us analyzed a series of 56 consecutive patients who had had radiographs and MRI performed on the same foot between April 27, 2015 and March 9, 2016 and who satisfied all other inclusion and exclusion criteria (age 18 to 100 years, no history of recent foot trauma, and no metal hardware in the foot)...
January 11, 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29331102/opposite-sex-relationship-questionnaire-for-female-adolescents-development-and-psychometric-evolution
#10
Masoumeh Sibmar, Nasim Bahrami, AbouAli Vedadhir, Hamid Alavi Majd, Averil Parker
Aim The goal of the present study is to adopt state-of-the-art techniques and standards to develop and evaluate a measure, called the opposite-sex relationship questionnaire for female adolescents (OSRQFA), to assess the reasons why adolescent girls would or would not develop, a relationship with an adolescent boy. Methods A mixed-method, sequential, exploratory design was adopted. In the qualitative phase, an in-depth interview approach was used to identify the properties and dimensions to be included in the OSRQFA...
January 13, 2018: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/29331099/adaptation-and-validation-of-the-disruptive-behaviour-disorders-teacher-rating-scale-as-a-screening-tool-for-early-detection-of-disruptive-behaviour-disorders-in-schools-in-a-lower-middle-income-setting
#11
Olawunmi Olagundoye, Alex Igundunasse, Morenike Aluko
Background Despite the need to curb the menace resulting from the negative trajectory of disruptive behaviour disorders (DBD) in societies of the world today, there is yet a dearth of locally standardised tools for the early detection of these disorders in Nigeria. This study was aimed at standardising the DBD teacher rating scale (DBD-TRS) to be culturally specific using teachers' ratings of their students. Objectives To establish norm scores for the three categories of DBD on the DBD-TRS, to evaluate the reliability, validity, predictive power, sensitivity and specificity of DBD-TRS items for identifying DBD symptoms amongst children/adolescents between the ages of 4 and 16 years...
January 13, 2018: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/29331045/the-urgent-need-for-a-harmonized-severity-scoring-system-for-acute-allergic-reactions
#12
Antonella Muraro, Montserrat Fernandez-Rivas, Kirsten Beyer, Victòria Cardona, Andrew Clark, Esben Eller, Jonathan O'B Hourihane, Marek Jutel, Aziz Sheikh, Ioana Agache, Katrina J Allen, Liz Angier, Barbara Ballmer-Weber, Maria Beatrice Bilò, Carsten Bindslev-Jensen, Carlos A Camargo, Antonella Cianferoni, Audrey DunnGalvin, Philippe A Eigenmann, Susanne Halken, Karin Hoffmann-Sommergruber, Susanne Lau, Caroline Nilsson, Lars K Poulsen, Franziska Rueff, Jonathan Spergel, Gunter Sturm, Frans Timmermans, Maria J Torres, Paul Turner, Ronald van Ree, Magnus Wickman, Margitta Worm, E N Clare Mills, Graham Roberts
The accurate assessment and communication of the severity of acute allergic reactions is important to patients, clinicians, researchers, the food industry, public health and regulatory authorities. Severity has different meanings to different stakeholders with patients and clinicians rating the significance of particular symptoms very differently. Many severity scoring systems have been generated, most focusing on the severity of reactions following exposure to a limited group of allergens. They are heterogeneous in format, none has used an accepted developmental approach and none has been validated...
January 13, 2018: Allergy
https://www.readbyqxmd.com/read/29330762/how-honest-are-the-signals-a-protocol-for-validating-wearable-sensors
#13
Varol Onur Kayhan, Zheng Chris Chen, Kimberly A French, Tammy D Allen, Kristen Salomon, Alison Watkins
There is growing interest among organizational researchers in tapping into alternative sources of data beyond self-reports to provide a new avenue for measuring behavioral constructs. Use of alternative data sources such as wearable sensors is necessary for developing theory and enhancing organizational practice. Although wearable sensors are now commercially available, the veracity of the data they capture is largely unknown and mostly based on manufacturers' claims. The goal of this research is to test the validity and reliability of data captured by one such wearable badge (by Humanyze) in the context of structured meetings where all individuals wear a badge for the duration of the encounter...
January 12, 2018: Behavior Research Methods
https://www.readbyqxmd.com/read/29330380/automatic-segmentation-of-the-solid-core-and-enclosed-vessels-in-subsolid-pulmonary-nodules
#14
Jean-Paul Charbonnier, Kaman Chung, Ernst T Scholten, Eva M van Rikxoort, Colin Jacobs, Nicola Sverzellati, Mario Silva, Ugo Pastorino, Bram van Ginneken, Francesco Ciompi
Subsolid pulmonary nodules are commonly encountered in lung cancer screening and clinical routine. Compared to other nodule types, subsolid nodules are associated with a higher malignancy probability for which the size and mass of the nodule and solid core are important indicators. However, reliably measuring these characteristics on computed tomography (CT) can be hampered by the presence of vessels encompassed by the nodule, since vessels have similar CT attenuation as solid cores. This can affect treatment decisions and patient management...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29330342/are-the-patient-rated-wrist-evaluation-prwe-and-the-disabilities-of-the-arm-shoulder-and-hand-dash-questionnaire-used-in-distal-radial-fractures-truly-valid-and-reliable
#15
Y V Kleinlugtenbelt, R G Krol, M Bhandari, J C Goslings, R W Poolman, V A B Scholtes
OBJECTIVES: The patient-rated wrist evaluation (PRWE) and the Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire are patient-reported outcome measures (PROMs) used for clinical and research purposes. Methodological high-quality clinimetric studies that determine the measurement properties of these PROMs when used in patients with a distal radial fracture are lacking. This study aimed to validate the PRWE and DASH in Dutch patients with a displaced distal radial fracture (DRF)...
January 2018: Bone & Joint Research
https://www.readbyqxmd.com/read/29330182/fluorescence-recovery-allows-the-implementation-of-a-fluorescence-reporter-gene-platform-applicable-for-the-detection-and-quantification-of-horizontal-gene-transfer-in-anoxic-environments
#16
Rafael Pinilla, Leise Riber, Søren J Sørensen
The study of horizontal gene transfer (HGT) in microbial communities has been revolutionized by significant advances in cultivation-independent methods based on fluorescence reporter gene technologies. Recently, the combination of these novel approaches with flow cytometry has presented itself as one of the most powerful tools to study the spread of mobile genetic elements (MGEs) in the environment. However, the use of fluorescent markers like green fluorescent protein (GFP) and mCherry is limited by environmental constraints that affect the correct maturation of their fluorophores, such as oxygen availability and pH levels...
January 12, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29330092/a-novel-double-antigen-sandwich-elisa-for-the-species-independent-detection-of-crimean-congo-hemorrhagic-fever-virus-specific-antibodies
#17
Miriam A Sas, Loic Comtet, Fabien Donnet, Marc Mertens, Zati Vatansever, Noel Tordo, Philippe Pourquier, Martin H Groschup
Crimean-Congo hemorrhagic fever (CCHF) is a tick-borne disease in humans caused by the CCHF virus (CCHFV). The detection of anti-CCHFV antibodies in animals is used to reveal infection risk areas. Therefore a simple, quick and reliable multispecies assay for the detection of CCHFV-specific antibodies is needed. This work presents the development and validation of a novel CCHF double-antigen ELISA for the detection of anti-CCHFV nucleoprotein antibodies. The test requires 30 μl of serum, and results are obtained within 90 min...
January 9, 2018: Antiviral Research
https://www.readbyqxmd.com/read/29329584/validity-of-the-school-setting-interview-for-students-with-special-educational-needs-in-regular-high-school-a-rasch-analysis
#18
Moa Yngve, Michaela Munkholm, Helene Lidström, Helena Hemmingsson, Elin Ekbladh
BACKGROUND: Participation in education is a vital component of adolescents' everyday life and a determinant of health and future opportunities in adult life. The School Setting Interview (SSI) is an instrument which assesses student-environment fit and reflects the potential needs for adjustments to enhance students' participation in school activities. The aim of the study was to investigate the psychometric properties of the SSI for students with special educational needs in regular high school...
January 12, 2018: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/29329423/development-and-early-validation-of-a-patient-reported-outcome-measure-to-assess-sleep-amongst-people-experiencing-problems-with-alcohol-or-other-drugs
#19
Joanne Neale, Silia Vitoratou, Paul Lennon, Robert Meadows, Sarah Nettleton, Daria Panebianco, John Strang, John Marsden
Study Objectives: To develop a patient reported outcome measure to assess sleep amongst people experiencing problems with alcohol or other drugs. Methods: Item development included secondary analyses of qualitative interviews with drug/alcohol users in residential treatment, a review of validated sleep measures, focus groups with drug/alcohol users in residential treatment, and feedback from drug/alcohol users recruited from community and residential settings. An initial version of the measure was completed by 549 current and former drug/alcohol users (442 in person [IP] and 107 online [OL])...
January 10, 2018: Sleep
https://www.readbyqxmd.com/read/29329363/validity-of-teleneuropsychological-assessment-in-older-patients-with-cognitive-disorders
#20
Hannah E Wadsworth, Kaltra Dhima, Kyle B Womack, John Hart, Myron F Weiner, Linda S Hynan, C Munro Cullum
Objective: The feasibility and reliability of neuropsychological assessment at a distance have been demonstrated, but the validity of this testing medium has not been adequately demonstrated. The purpose of this study was to determine the ability of video teleconferencing administration of neuropsychological measures (teleneuropsychology) in discriminating cognitively impaired from non-impaired groups of older adults. It was predicted that measures administered via video teleconference would distinguish groups and that the magnitude of differences between impaired and non-impaired groups would be similar to group differences achieved in traditional administration...
January 10, 2018: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
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