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Comparing apples and oranges? A critical look at research on learning from statics versus animations
(Pergamon-Elsevier Science, 2016-11)
Many of the studies that have compared the instructional effectiveness of static with dynamic images have not controlled all the moderating variables involved. This problem is present not only in instructional pictures ...
Directed acyclic graphs in statistical modelling of epidemiological studies Aplicación de grafos acíclicos dirigidos en la evaluación de un set mínimo de ajuste de confusores: Un complemento al modelamiento estadístico en estudios epidemiológicos observac
(Sociedad Medica de Santiago, 2018)
© 2018, Sociedad Medica de Santiago. All rights reserved. Background: Confusion in observational epidemiological studies distorts the relationship between exposure and event. “Step by step” regression models, diverts the ...
Los efectos perturbadores en las relaciones entre variablesLos efectos perturbadores en las relaciones entre variables (ING)
(Universidad Nacional de Costa Rica, 2016)
The relationship between knowledge of HIV, self-perceived vulnerability and sexual risk behavior among community clinic workers in Chile
(2010)
Objective Testing the hypothesis of an association between knowledge and sexual risk behaviour (SRB) amongst community-clinic workers in Chile, explained by the confounding effect of self-perceived vulnerability to HIV. ...
Confounding Variables and the Performance of Triggers in Detecting Unreported Adverse Drug Reactions
(2017-04-01)
Purpose This study explored the performance of trigger in detecting adverse drug reactions (ADRs), the confounding variables impairing the causal association of the ADRs, and the underreporting rate by hospital health ...
Back and neck pain and poor sleep quality in adolescents are associated even after controlling for confounding factors: An epidemiological study
(2020-01-01)
Objective: Back pain and poor sleep quality are public health issues. Relating to adolescents particularly, the way in which this relationship can occur is still unclear. The aim of this study was to investigate whether ...
Los efectos perturbadores en las relaciones entre variables
(Universidad Nacional (Costa Rica), 2002)
Se analiza el efecto perturbador que una característica puede provocar en la relación entre dos o más variables. Se utilizó la información correspondiente a un cuestionario que se aplicó a una muestra de educadores de ...
Correlation between heart rate variability and pulmonary function adjusted by confounding factors in healthy adults
(Assoc Bras Divulg Cientifica, 2016)
The autonomic nervous system maintains homeostasis, which is the state of balance in the body. That balance can be determined simply and noninvasively by evaluating heart rate variability (HRV). However, independently of ...
Magnetic field inhomogeneities due to co2 incubator shelves: A source of experimental confounding and variability?
(Royal Society, 2018-02)
A thorough assessment of the static magnetic field (SMF) inside a CO2 incubator allowed us to identify non-negligible inhomogeneities close to the floor, ceiling, walls and the door. Given that incubator’s shelves are made ...