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Validity and reliability

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https://www.readbyqxmd.com/read/28820854/a-brief-review-of-handgrip-strength-and-sport-performance
#1
John Cronin, Trent Lawton, Nigel Harris, Andrew Kilding, Daniel Travis McMaster
Tests of handgrip strength (HGS) and handgrip force (HGF) are commonly used across a number of sporting populations. Measures of HGS and HGF have also been utilized by practitioners and researchers to evaluate links with sports performance. This article, firstly evaluates the validity and reliability of various handgrip dynamometers (HGD) and HGF sensors, providing recommendations for procedures to ensure precise and reliable data are collected as part of an athlete testing battery. Secondly, the differences in HGS between elite and sub-elite athletes and the relationships between HGS, HGF, and sports performance are discussed...
August 15, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28820669/preliminary-psychometric-evaluation-of-the-hamilton-depression-rating-scale-in-methamphetamine-dependence
#2
Tracy Hellem, Lindsay Scholl, Hayden Ferguson, Erin McGlade, Deborah Yurgelun-Todd, Perry Renshaw, Laura Hildreth
OBJECTIVE: The purpose of this study was to test the initial psychometric properties of the 17-item Hamilton Depression Rating Scale (HAM-D) in individuals with and without major depressive disorder who use methamphetamine. We used data from two completed studies and two ongoing clinical trials. The HAM-D has well established reliability and validity in a variety of populations. However, there are no published reports of reliability and validity of the HAM-D in a methamphetamine using population...
August 18, 2017: Journal of Dual Diagnosis
https://www.readbyqxmd.com/read/28820616/psychometrics-of-the-child-ptsd-symptom-scale-for-dsm-5-for-trauma-exposed-children-and-adolescents
#3
Edna B Foa, Anu Asnaani, Yinyin Zang, Sandra Capaldi, Rebecca Yeh
This study evaluated psychometric properties of interview, self-report, and screening versions of the Child PTSD Symptom Scale for DSM-5 (CPSS-5), a measure of posttraumatic stress disorder (PTSD) for traumatized youth based on DSM-5 criteria. Participants were 64 children and adolescents (51.6% female, 45.3% African American/Black) between 8 and 18 years of age (M = 14.1, SD = 2.5) who had experienced a DSM-5 Criterion A trauma. Participants completed test-retest procedures for the self-report and interviewer versions of the CPSS-5 in 2 visits that were up to 2 weeks apart...
August 18, 2017: Journal of Clinical Child and Adolescent Psychology
https://www.readbyqxmd.com/read/28820478/detection-of-interactions-between-proteins-by-using-legendre-moments-descriptor-to-extract-discriminatory-information-embedded-in-pssm
#4
Yan-Bin Wang, Zhu-Hong You, Li-Ping Li, Yu-An Huang, Hai-Cheng Yi
Protein-protein interactions (PPIs) play a very large part in most cellular processes. Although a great deal of research has been devoted to detecting PPIs through high-throughput technologies, these methods are clearly expensive and cumbersome. Compared with the traditional experimental methods, computational methods have attracted much attention because of their good performance in detecting PPIs. In our work, a novel computational method named as PCVM-LM is proposed which combines the probabilistic classification vector machine (PCVM) model and Legendre moments (LMs) to predict PPIs from amino acid sequences...
August 18, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28820012/effect-of-rotational-prosthetic-alignment-variation-on-tibiofemoral-contact-pressure-distribution-and-joint-kinematics-in-total-knee-replacement
#5
Xin Xie, Roy Rusly, John D DesJardins, Frank Voss, Kim Chillag, Martine LaBerge
In total knee replacement surgery, implant alignment is one of the most important criteria for successful long-term clinical outcome. During total knee replacement implantation, femoral and tibial alignment are determined through appropriate bone resections, which could vary based on patient anatomy, implant design and surgical technique and further influence loading conditions and clinical outcomes. The current research focused on three critical alignment parameters for total knee replacement insertion: femoral component internal/external (I/E) rotation, varus-valgus tibiofemoral angulation and posterior tibial slope...
August 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28820002/applicability-of-the-arabic-version-of-vocal-tract-discomfort-scale-vtds-with-student-singers-as-professional-voice-users
#6
Wesam B Darawsheh, Yaser S Natour, Eve G Sada
AIM: This pilot study aimed to evaluate the internal consistency, convergent construct validity and criterion validity of Arabic version of the Vocal Tract Discomfort Scale (VTDS), and to investigate the correlation between the scores of the VTDS, the VHI and the acoustic measures of fundamental frequency (F0), shimmer, jitter and signal-to-noise ratio (SNR). METHODOLOGY: A cross-sectional study where 97 participants participated (47 males and 50 females) (mean age 20...
August 18, 2017: Logopedics, Phoniatrics, Vocology
https://www.readbyqxmd.com/read/28819998/reliability-and-validity-of-the-script-concordance-test-for-postgraduate-students-of-general-practice
#7
Julie Subra, Bruno Chicoulaa, André Stillmunkès, Pierre Mesthé, Stéphane Oustric, Marie-Eve Rougé Bugat
BACKGROUND: The script concordance test (SCT) is a validated method of examining students' clinical reasoning. Medical students' professional skills are assessed during their postgraduate years as they study for a specialist qualification in general practice. However, no specific provision is made for assessing their clinical reasoning during their postgraduate study. OBJECTIVE: The aim was to demonstrate the reliability and validity of the SCT in general practice and to determine if this tool could be used to assess medical students' progress in acquiring clinical reasoning...
December 2017: European Journal of General Practice
https://www.readbyqxmd.com/read/28819894/cross-cultural-adaptation-and-validation-of-the-dutch-version-of-the-core-outcome-measures-index-for-low-back-pain
#8
J Van Lerbeirghe, J Van Lerbeirghe, P Van Schaeybroeck, H Robijn, R Rasschaert, J Sys, T Parlevliet, G Hallaert, P Van Wambeke, B Depreitere
PURPOSE: The core outcome measures index (COMI) is a validated multidimensional instrument for assessing patient-reported outcome in patients with back problems. The aim of the present study is to translate the COMI into Dutch and validate it for use in native Dutch speakers with low back pain. METHODS: The COMI was translated into Dutch following established guidelines and avoiding region-specific terminology. A total of 89 Dutch-speaking patients with low back pain were recruited from 8 centers, located in the Dutch-speaking part of Belgium...
August 17, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28819619/is-the-persian-version-of-the-olfactory-disorder-questionnaire-reliable-and-valid
#9
Maryam Jalessi, Seyed Kamran Kamrava, Elahe Amini, Farhad Rafiei, Mohammad Amin Nasouti, Naeimeh Moosavi, Mohammad Farhadi
INTRODUCTION: The Questionnaire for Olfactory Dysfunction (QOD) is a self-reporting olfactory-related quality of life questionnaire. The aim of this study was to determine the reliability and validity of the Persian version of this questionnaire. MATERIALS AND METHODS: One hundred and thirteen patients with olfactory problems were enrolled in this study. The English version of the QOD was first translated into Persian. The reliability was then tested by determining the Cronbach alpha coefficient to assess internal consistency...
July 2017: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28818984/pseudo-reference-regions-for-glial-imaging-with-11-c-pbr28-investigation-in-two-clinical-cohorts
#10
Daniel Strakis Albrecht, Marc David Normandin, Sergey Shcherbinin, Dustin W Wooten, Adam J Schwarz, Nicole R Zurcher, Vanessa N Barth, Nicolas J Guehl, Oluwaseun Johnson-Akeju, Nazem Atassi, Mattia Veronese, Federico Turkheimer, Jacob M Hooker, Marco Luciano Loggia
The translocator protein (TSPO) is a commonly used imaging target to investigate neuroinflammation. While TSPO imaging demonstrates great promise, its signal exhibits substantial interindividual variability, which needs to be accounted for to uncover group effects that are truly reflective of neuroimmune activation. Recent evidence suggests that relative metrics computed using pseudo-reference approaches can minimize within-group variability, and increase sensitivity to detect physiologically meaningful group differences...
August 17, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28818818/validation-of-a-smartphone-based-approach-to-in-situ-cognitive-fatigue-assessment
#11
Edward Price, George Moore, Leo Galway, Mark Linden
BACKGROUND: Acquired Brain Injuries (ABIs) can result in multiple detrimental cognitive effects, such as reduced memory capability, concentration, and planning. These effects can lead to cognitive fatigue, which can exacerbate the symptoms of ABIs and hinder management and recovery. Assessing cognitive fatigue is difficult due to the largely subjective nature of the condition and existing assessment approaches. Traditional methods of assessment use self-assessment questionnaires delivered in a medical setting, but recent work has attempted to employ more objective cognitive tests as a way of evaluating cognitive fatigue...
August 17, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28818801/development-and-validation-of-a-reliable-method-for-thiopurine-methyltransferase-tpmt-enzyme-activity-in-human-whole-blood-by-lc-ms-ms-an-application-for-phenotypic-and-genotypic-correlations
#12
Supaporn Wiwattanakul, Santirhat Prommas, Nuttawut Jenjirattithigarn, Siwalee Santon, Apichaya Puangpetch, Samart Pakakasama, Usanarat Anurathapan, Chonlaphat Sukasem
A liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed for the determination of thiopurine methyltransferase (TPMT) activity in human whole blood lysate, based on conversion of 6-mercaptopurine (6-MP) by TPMT to 6-methylmercaptopurine (6-MMP) using S-adenosyl-l-methionine (SAM) as the methyl donor. This method was improved from the previous laborious method for washing of red cell lysate preparation to develop whole blood EDTA lysate. In addition, the TPMT incubation was optimized and the chromatography was performed in a short runtime of 7min on a C18-column by detection via triple quadrupole mass spectrometry...
August 4, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28818708/non-technical-skills-assessment-for-prelicensure-nursing-students-an-integrative-review
#13
REVIEW
Sara Pires, Sara Monteiro, Anabela Pereira, Daniela Chaló, Elsa Melo, Alexandre Rodrigues
BACKGROUND: In nursing, non-technical skills are recognized as playing an important role to increase patient safety and successful clinical outcomes (Pearson and McLafferty, 2011). Non-technical skills are cognitive and social resource skills that complement technical skills and contribute to safe and efficient task performance (Flin et al., 2008). In order to effectively provide non-technical skills training, it is essential to have an instrument to measure these skills. METHODOLOGY: An online search was conducted...
August 12, 2017: Nurse Education Today
https://www.readbyqxmd.com/read/28818687/consumer-exposure-to-certain-ingredients-of-cosmetic-products-the-case-for-tea-tree-oil
#14
Bernhard O Rieder
Reliable exposure data are essential to evaluate the safety of ingredients in cosmetics. The study reported here was carried out on behalf of the Australian Tea Tree Industry Association in order to support safety assessment of TTO in consumer cosmetic products. Data regarding the use of TTO-containing cosmetic products were collected through a web-survey among 2535 qualified users of validated TTO-containing cosmetics in 5 European countries. Data regarding the percentage of TTO present in the individual products (TTO-inclusion) were collected from the suppliers of those products...
August 14, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28818641/pernambuco-index-predictability-of-the-complexity-of-surgery-for-impacted-lower-third-molars
#15
R W F de Carvalho, B C Vasconcelos
This study aimed to develop and validate an index of surgical difficulty for the removal of impacted lower third molars. The study was performed in two steps. The first was a cross-sectional analysis of clinical, demographic, and radiographic variables collected from patients undergoing the removal of an impacted lower third molar between 2008 and 2012. The second step was a prospective cohort study involving the same surgical procedures to validate the index; this was performed between 2013 and 2016. Univariate regression analysis was applied, followed by multiple linear regression analysis...
August 14, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28818564/validity-of-a-smartphone-protractor-to-measure-sagittal-parameters-in-adult-spinal-deformity
#16
William Aaron Kunkle, Michael Madden, Shannon Potts, Jeremy Fogelson, Stuart Hershman
BACKGROUND CONTEXT: Smartphones have become an integral tool in the daily life of healthcare professionals (Franko 2011). Their ease of use and wide availability often make smartphones the first tool surgeons use to perform measurements. This technique has been validated for certain orthopaedic pathologies (Shaw 2012, Quek 2014, Milanese 2014, Milani 2014), but never to assess sagittal parameters in adult spinal deformity. This study was designed to assess the validity, reproducibility, precision and efficiency of using a smartphone protractor application to measure sagittal parameters commonly measured in adult spinal deformity assessment and surgical planning...
August 14, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28818493/progression-free-survival-and-time-to-progression-as-real-surrogate-end-points-for-overall-survival%C3%A2-in-advanced-breast-cancer-a-meta-analysis-of-37-trials
#17
Ling Li, Zhanyu Pan
BACKGROUND: Progression-free survival (PFS) and time to progression (TTP) have been reported to correlate with overall survival (OS) in several cancer types. To our knowledge, however, the correlation between them is unclear. METHODS: A literature-based meta-analysis was performed to assess whether PFS and TTP can be considered reliable surrogate end points for OS in a phase 3 clinical trial of advanced breast cancer (ABC). The median hazard ratios of PFS/TTP and OS were analyzed by determining their nonparametric Spearman rank correlation coefficients (Rs)...
July 25, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/28818090/trends-in-maternal-and-neonatal-mortality-in-south-africa-a-systematic-review-protocol
#18
Damian J Damian, Bernard Njau, Ester Lisasi, Sia E Msuya, Andrew Boulle
BACKGROUND: Measuring and monitoring progress towards Millennium Development Goals (MDG) 4 and 5 requires valid and reliable estimates of maternal and neonatal mortality. In South Africa, there are conflicting reports on the estimates of maternal and neonatal mortality, derived from both direct and indirect estimation techniques. This study aims to systematically review the estimates made of maternal and neonatal mortality in the period from 1990 to 2015 in South Africa and determine trends over this period...
August 17, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28818056/adaptation-of-chinese-and-english-versions-of-the-ankylosing-spondylitis-quality-of-life-asqol-scale-for-use-in-singapore
#19
Ying Ying Leung, Weixian Lee, Nai Lee Lui, Matthew Rouse, Stephen P McKenna, Julian Thumboo
BACKGROUND: To cross-culturally adapt and validate the Singapore Chinese and Singapore English versions of the Ankylosing Spondylitis Quality of Life (ASQoL) scales. METHODS: Translation of the ASQoL into Singapore Chinese and English was performed by professional and lay translation panels. Field-testing for face and content validity was performed by interviewing ten Chinese speaking and ten English speaking axial spondyloarthritis (AxSpA) patients. AxSpA patients (either Chinese or English speaking) were invited to take part in validation surveys...
August 17, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28817703/quality-of-life-of-inguinal-hernia-patients-in-taiwan-the-application-of-the-hernia-specific-quality-of-life-assessment-instrument
#20
Chi-Cheng Huang, Feng-Chuan Tai, Tzung-Hsin Chou, Heng-Hui Lien, Jaan-Yeh Jeng, Thien-Fiew Ho, Ching-Shui Huang
BACKGROUND: With the development of prosthetic mesh and tension free techniques, the recurrence rate following inguinal hernia repair has been reduced, and hernia outcomes research should focus on post-operative quality of life and potential complications. STUDY DESIGN: A novel hernia quality of life assessment instrument, HERQL, was developed. The HERQL questionnaire comprises a 4-item summative pain score measuring pain and discomfort resulting from various strenuous activities...
2017: PloS One
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