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Interpretation bias

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https://www.readbyqxmd.com/read/28938712/invited-commentary-the-need-for-cognitive-science-in-methodology
#1
Sander Greenland
There is no complete solution for the problem of abuse of statistics, but methodological training needs to cover cognitive biases and other psychosocial factors affecting inferences. The present paper discusses 3 common cognitive distortions: 1) dichotomania, the compulsion to perceive quantities as dichotomous even when dichotomization is unnecessary and misleading, as in inferences based on whether a P value is "statistically significant"; 2) nullism, the tendency to privilege the hypothesis of no difference or no effect when there is no scientific basis for doing so, as when testing only the null hypothesis; and 3) statistical reification, treating hypothetical data distributions and statistical models as if they reflect known physical laws rather than speculative assumptions for thought experiments...
September 15, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28938225/occupant-level-injury-severity-analyses-for-taxis-in-hong-kong-a-bayesian-space-time-logistic-model
#2
Fanyu Meng, Pengpeng Xu, S C Wong, Helai Huang, Y C Li
This study aimed to identify the factors affecting the crash-related severity level of injuries in taxis and quantify the associations between these factors and taxi occupant injury severity. Casualties resulting from taxi crashes from 2004 to 2013 in Hong Kong were divided into four categories: taxi drivers, taxi passengers, private car drivers and private car passengers. To avoid any biased interpretation caused by unobserved spatial and temporal effects, a Bayesian hierarchical logistic modeling approach with conditional autoregressive priors was applied, and four different model forms were tested...
September 19, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28936887/interpretation-of-correlations-in-clinical-research
#3
Man Hung, Jerry Bounsanga, Maren Wright Voss
BACKGROUND: Critically analyzing research is a key skill in evidence-based practice and requires knowledge of research methods, results interpretation, and applications, all of which rely on a foundation based in statistics. Evidence-based practice makes high demands on trained medical professionals to interpret an ever-expanding array of research evidence. OBJECTIVE: As clinical training emphasizes medical care rather than statistics, it is useful to review the basics of statistical methods and what they mean for interpreting clinical studies...
September 22, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28935946/population-resequencing-of-european-mitochondrial-genomes-highlights-sex-bias-in-bronze-age-demographic-expansions
#4
Chiara Batini, Pille Hallast, Åshild J Vågene, Daniel Zadik, Heidi A Eriksen, Horolma Pamjav, Antti Sajantila, Jon H Wetton, Mark A Jobling
Interpretations of genetic data concerning the prehistory of Europe have long been a subject of great debate, but increasing amounts of ancient and modern DNA data are now providing new and more informative evidence. Y-chromosome resequencing studies in Europe have highlighted the prevalence of recent expansions of male lineages, and focused interest on the Bronze Age as a period of cultural and demographic change. These findings contrast with phylogeographic studies based on mitochondrial DNA (mtDNA), which have been interpreted as supporting expansions from glacial refugia...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28934779/what-are-the-predictors-of-altered-central-pain-modulation-in-chronic-musculoskeletal-pain-populations-a-systematic-review
#5
Jacqui Clark, Jo Nijs, Gillian Yeowell, Peter Charles Goodwin
BACKGROUND: Altered central pain modulation is the predominant pain mechanism in a proportion of chronic musculoskeletal pain disorders and is associated with poor outcomes. Although existing studies predict poor outcomes such as persistent pain and disability, to date there is little consensus on what factors specifically predict altered central pain modulation. OBJECTIVES: To review the existing literature on the predictive factors specifically for altered central pain modulation in musculoskeletal pain populations...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28932912/behavioral-cognitive-and-emotional-coping-strategies-of-women-with-endometriosis-a-critical-narrative-review
#6
REVIEW
Cristina Zarbo, Agostino Brugnera, Luigi Frigerio, Chiara Malandrino, Massimo Rabboni, Emi Bondi, Angelo Compare
Endometriosis is a disabling and long-term medical condition affecting quality of life and mental health. Behavioral, cognitive, and emotional coping strategies, emotional intelligence, and metacognition could in part explain the link between the disease and impaired psychological and life functioning. This critical narrative review aimed at examining the state of the art of the relationships between endometriosis and these factors. According to PRISMA principles, we performed a systematic search for quantitative and qualitative studies on multiple electronic databases as regards coping strategies, emotional intelligence, and metacognition in women with endometriosis...
September 21, 2017: Archives of Women's Mental Health
https://www.readbyqxmd.com/read/28930352/liquid-crystal-order-during-synthesis-affects-main-chain-liquid-crystal-elastomer-behavior
#7
N A Traugutt, R H Volpe, M S Bollinger, M O Saed, A H Torbati, K Yu, Natalia Dadivanyan, C M Yakacki
This study presents the first direct comparison of the influence of liquid-crystal order during synthesis on the thermo-mechanical behaviors of main-chain liquid-crystal elastomers (LCEs) in thiol-acrylate networks. Six polydomain nematic elastomer (PNE) chemistries were compared directly by synthesizing with the mesogens in either an isotropic state (i-PNE) or a nematic state (n-PNE). The i-PNE networks were created in the presence of solvent, which disrupted any liquid-crystal order during network formation...
September 20, 2017: Soft Matter
https://www.readbyqxmd.com/read/28928683/selfie-takers-prefer-left-cheeks-converging-evidence-from-the-extended-selfiecity-database
#8
Lev Manovich, Vera Ferrari, Nicola Bruno
According to previous reports, selfie takers in widely different cultural contexts prefer poses showing the left cheek more than the right cheek. This posing bias may be interpreted as evidence for a right-hemispheric specialization for the expression of facial emotions. However, earlier studies analyzed selfie poses as categorized by human raters, which raises methodological issues in relation to the distinction between frontal and three-quarter poses. Here, we provide converging evidence by analyzing the (extended) selfiecity database which includes automatic assessments of head rotation and of emotional expression...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28927376/systematic-review-of-statistical-approaches-to-quantify-or-correct-for-measurement-error-in-a-continuous-exposure-in-nutritional-epidemiology
#9
Derrick A Bennett, Denise Landry, Julian Little, Cosetta Minelli
BACKGROUND: Several statistical approaches have been proposed to assess and correct for exposure measurement error. We aimed to provide a critical overview of the most common approaches used in nutritional epidemiology. METHODS: MEDLINE, EMBASE, BIOSIS and CINAHL were searched for reports published in English up to May 2016 in order to ascertain studies that described methods aimed to quantify and/or correct for measurement error for a continuous exposure in nutritional epidemiology using a calibration study...
September 19, 2017: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/28926704/chromatographic-properties-of-minimal-aspect-ratio-monolithic-silica-columns
#10
Takeshi Hara, Shunta Futagami, Wim De Malsche, Sebastiaan Eeltink, Herman Terryn, Gino V Baron, Gert Desmet
We report on a study wherein we synthesized TMOS-based silica monolithic skeletons in capillaries with an i.d. of 5 and 10 μm to produce skeleton structures with very low capillary-to-domain size aspect-ratios. These structures include the absolute minimal aspect-ratio case of a monolithic structure whose cross-section only contains a single node point. With domain-sized based reduced plate heights running as low as hmin = 1.3-1.5 for retained coumarin dyes providing a retention factor of k = 0.6-1.0, the study confirms the classic observation that ultra-low aspect ratio columns generate a markedly lower dispersion than columns with a larger aspect ratio made in the past by Knox, Jorgenson and Kennedy for the packed bed of spheres, but now for silica monoliths...
September 19, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28924628/a-recurrent-neural-model-for-proto-object-based-contour-integration-and-figure-ground-segregation
#11
Brian Hu, Ernst Niebur
Visual processing of objects makes use of both feedforward and feedback streams of information. However, the nature of feedback signals is largely unknown, as is the identity of the neuronal populations in lower visual areas that receive them. Here, we develop a recurrent neural model to address these questions in the context of contour integration and figure-ground segregation. A key feature of our model is the use of grouping neurons whose activity represents tentative objects ("proto-objects") based on the integration of local feature information...
September 19, 2017: Journal of Computational Neuroscience
https://www.readbyqxmd.com/read/28923307/association-between-opioid-use-and-risk-of-erectile-dysfunction-a-systematic-review-and-meta-analysis
#12
REVIEW
Shankun Zhao, Tuo Deng, Lianmin Luo, Jiamin Wang, Ermao Li, Luhao Liu, Futian Li, Jintai Luo, Zhigang Zhao
BACKGROUND: Opioid analgesics have been widely used to relieve chronic pain conditions; however, a connection between opioid analgesic administration and increased susceptibility to erectile dysfunction (ED) has been hypothesized. AIM: To evaluate whether opioid use was a risk factor for ED in a systematic review and meta-analysis. METHODS: The PubMed, Cochrane Library, and Embase databases were searched to identify eligible studies concerning opioid use and risk of ED from inception to April 2017...
September 8, 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28923304/weight-and-see-line-bisection-in-neglect-reliably-measures-the-allocation-of-attention-but-not-the-perception-of-length
#13
Robert D McIntosh, Magdalena Ietswaart, A David Milner
Line bisection has long been a routine test for unilateral neglect, along with a range of tests requiring cancellation, copying or drawing. However, several studies have reported that line bisection, as classically administered, correlates relatively poorly with the other tests of neglect, to the extent that some authors have questioned its status as a valid test of neglect. In this article, we re-examine this issue, employing a novel method for administering and analysing line bisection proposed by McIntosh, Schindler, Birchall, & Milner (2005)...
September 15, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28922737/economic-evaluations-of-internet-and-mobile-based-interventions-for-the-treatment-and-prevention-of-depression-a-systematic-review
#14
REVIEW
Sarah Paganini, Wiebke Teigelkötter, Claudia Buntrock, Harald Baumeister
BACKGROUND: Internet- and mobile-based interventions (IMIs) targeting depression have been shown to be clinically effective and are considered a cost-effective complement to established interventions. The aim of this review was to provide an overview of the evidence for the cost-effectiveness of IMIs for the treatment and prevention of depression. METHODS: A systematic database search was conducted (Medline, PsychInfo, CENTRAL, PSYNDEX, OHE HEED). Relevant articles were selected according to defined eligibility criteria...
July 18, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28919652/causal-inference-with-a-graphical-hierarchy-of-interventions
#15
Ilya Shpitser, Eric Tchetgen Tchetgen
Identifying causal parameters from observational data is fraught with subtleties due to the issues of selection bias and confounding. In addition, more complex questions of interest, such as effects of treatment on the treated and mediated effects may not always be identified even in data where treatment assignment is known and under investigator control, or may be identified under one causal model but not another. Increasingly complex effects of interest, coupled with a diversity of causal models in use resulted in a fragmented view of identification...
December 2016: Annals of Statistics
https://www.readbyqxmd.com/read/28916297/neuro-cognition-and-social-cognition-elements-of-social-functioning-and-social-quality-of-life
#16
Ilanit Hasson-Ohayon, Michal Mashiach-Eizenberg, Nitzan Arnon-Ribenfeld, Shlomo Kravetz, David Roe
Previous studies have shown that deficits in social cognition mediate the association between neuro-cognition and functional outcome. Based on these findings, the current study presents an examination of the mediating role of social cognition and includes two different outcomes: social functioning assessed by objective observer and social quality of life assessed by subjective self-report. Instruments measuring different aspects of social cognition, cognitive ability, social functioning and social quality of life were administered to 131 participants who had a diagnosis of a serious mental illness...
September 6, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28912117/sample-size-calculations-for-population-size-estimation-studies-using-multiplier-methods-with-respondent-driven-sampling-surveys
#17
Elizabeth Fearon, Sungai T Chabata, Jennifer A Thompson, Frances M Cowan, James R Hargreaves
BACKGROUND: While guidance exists for obtaining population size estimates using multiplier methods with respondent-driven sampling surveys, we lack specific guidance for making sample size decisions. OBJECTIVE: To guide the design of multiplier method population size estimation studies using respondent-driven sampling surveys to reduce the random error around the estimate obtained. METHODS: The population size estimate is obtained by dividing the number of individuals receiving a service or the number of unique objects distributed (M) by the proportion of individuals in a representative survey who report receipt of the service or object (P)...
September 14, 2017: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/28910609/categorical-perception-of-facial-expressions-in-individuals-with-non-clinical-social-anxiety
#18
Fanghui Qiu, Mingxiu Han, Yu Zhai, Shiwei Jia
BACKGROUND AND OBJECTIVES: According to the well-established categorical perception (CP) of facial expressions, we decode complicated expression signals into simplified categories to facilitate expression processing. Expression processing deficits have been widely described in social anxiety (SA), but it remains to be investigated whether CP of expressions are affected by SA. The present study examined whether individuals with SA had an interpretation bias when processing ambiguous expressions and whether the sensitivity of their CP was affected by their SA...
September 5, 2017: Journal of Behavior Therapy and Experimental Psychiatry
https://www.readbyqxmd.com/read/28910121/the-impact-of-uncertain-threat-on-affective-bias-individual-differences-in-response-to-ambiguity
#19
Maital Neta, Julie Cantelon, Zachary Haga, Caroline R Mahoney, Holly A Taylor, F Caroline Davis
Individuals who operate under highly stressful conditions (e.g., military personnel and first responders) are often faced with the challenge of quickly interpreting ambiguous information in uncertain and threatening environments. When faced with ambiguity, it is likely adaptive to view potentially dangerous stimuli as threatening until contextual information proves otherwise. One laboratory-based paradigm that can be used to simulate uncertain threat is known as threat of shock (TOS), in which participants are told that they might receive mild but unpredictable electric shocks while performing an unrelated task...
September 14, 2017: Emotion
https://www.readbyqxmd.com/read/28906005/group-a-rotaviruses-circulating-prior-to-a-national-immunization-programme-in-nigeria-clinical-manifestations-high-g12p-8-frequency-intra-genotypic-divergence-of-vp4-and-vp7
#20
M O Japhet, O Famurewa, M Iturriza-Gomara, O A Adesina, O O Opaleye, S Niendorf, C T Bock, A Mas Marques
Nigeria having approximately 50,000 Rotavirus A (RVA) deaths annually is yet to introduce RVA vaccine into routine national immunization; therefore surveillance of RVA strains circulating before vaccine introduction is essential in evaluating impact of the intervention. Stool samples and sociodemographic data of diarrhoeic children, <5 years were collected between August 2012 and December 2013. While a high prevalence of RVA infection (47.6%; 49/103) was observed by quantitative reverse transcription real time PCR, only 25% (26/103) had high RVA genome concentrations and were antigen positive...
September 14, 2017: Journal of Medical Virology
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