Results 11 to 20 of about 482,321 (300)

Determining Dimensionality with Dichotomous Variables: A Monte Carlo Simulation Study and Applications to Missing Data in Longitudinal Research

open access: yesMathematics, 2023
Dichotomous data correspond with various types of commonly encountered data, e.g., positive/negative, case/control, missing/observed, in many fields, including medicine, health, and social sciences.
Ting Dai, Adam Davey
doaj   +1 more source

A simulation study on missing data imputation for dichotomous variables using statistical and machine learning methods

open access: yesScientific Reports, 2023
The problem of missing data, particularly for dichotomous variables, is a common issue in medical research. However, few studies have focused on the imputation methods of dichotomous data and their performance, as well as the applicability of these ...
Yingfeng Ge, Zhiwei Li, Jinxin Zhang
doaj   +1 more source

Identification of thresholds for dichotomizing DNA methylation data [PDF]

open access: yesEURASIP Journal on Bioinformatics and Systems Biology, 2013
Abstract DNA methylation plays an important role in many biological processes by regulating gene expression. It is commonly accepted that turning on the DNA methylation leads to silencing of the expression of the corresponding genes. While methylation is often described as a binary on-off signal, it is typically measured using beta values ...
Liu, Yihua, Ji, Yuan, Qiu, Peng
openaire   +2 more sources

Heteroscedastic Latent Trait Models for Dichotomous Data [PDF]

open access: yesPsychometrika, 2015
Effort has been devoted to account for heteroscedasticity with respect to observed or latent moderator variables in item or test scores. For instance, in the multi-group generalized linear latent trait model, it could be tested whether the observed (polychoric) covariance matrix differs across the levels of an observed moderator variable.
openaire   +4 more sources

Calibrating the Medical Council of Canada’s Qualifying Examination Part I using an integrated item response theory framework: a comparison of models and designs [PDF]

open access: yesJournal of Educational Evaluation for Health Professions, 2016
Purpose: The aim of this research was to compare different methods of calibrating multiple choice question (MCQ) and clinical decision making (CDM) components for the Medical Council of Canada’s Qualifying Examination Part I (MCCQEI) based on item ...
Andre F. De Champlain   +2 more
doaj   +1 more source

Psychometric Properties of the Dichotomous Thinking in Eating Disorders Scale (DTEDS) [PDF]

open access: yesمجله علوم پزشکی صدرا, 2022
Introduction: The Dichotomous Thinking in Eating Disorders Scale (DTEDS) is a short, self- assessment of the presence of a rigid, “black-and-white” cognitive thinking style.
Masume Bagheri   +3 more
doaj   +1 more source

Panel Estimators to Combine Revealed and Stated Preference Dichotomous Choice Data

open access: yesJournal of Agricultural and Resource Economics, 1997
Combining stated and revealed preference data often involved multiple responses from the same individual. Panel estimators are appropriate to jointly model the decision to actually visit at current trip costs, the intention to visit at hypothetically ...
John B. Loomis
doaj   +1 more source

Younger people, and stronger effects of all-or-nothing thoughts on aggression: Moderating effects of age on the relationships between dichotomous thinking and aggression

open access: yesCogent Psychology, 2016
Binary or dichotomous thinking may lead to aggression throughout people’s lifespan; additionally, relationships are likely to be affected by types of aggression (i.e. physical aggression, verbal aggression, anger, and hostility) as well as gender and age.
Atsushi Oshio   +2 more
doaj   +1 more source

The Fragility of Significance in the Hip Arthroscopy Literature

open access: yesJBJS Open Access, 2021
Background:. The purpose of the present study was to perform the first examination of the utility of p values and the degree of statistical fragility in the hip arthroscopy literature by applying both the Fragility Index (FI) and the Fragility Quotient ...
Robert L. Parisien, MD   +7 more
doaj   +1 more source

Discarding Dichotomization: Retrieving Data in the Service of Patient Care [PDF]

open access: yesClinical Liver Disease, 2022
Content available: Author Interview and Audio Recording.
Alan L. Hutchison   +2 more
openaire   +2 more sources

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