Results 21 to 30 of about 17,397,740 (295)

Peer Effects on Vocabulary Knowledge: A Linear Quantile Mixed-Modeling Approach

open access: yesEducation Sciences, 2018
Do your peers in the classroom have an effect on your vocabulary learning? The purpose of this study was to determine if group-level peer characteristics and group-level peer achievement account for individual-level differences in vocabulary achievement ...
Jamie M. Quinn   +2 more
doaj   +1 more source

Species Distribution Modeling: Comparison of Fixed and Mixed Effects Models Using INLA

open access: yesISPRS International Journal of Geo-Information, 2017
Invasive alien species are among the most important, least controlled, and least reversible of human impacts on the world’s ecosystems, with negative consequences affecting biodiversity and socioeconomic systems. Species distribution models have become a
Lara Dutra Silva   +3 more
doaj   +1 more source

Small area prediction of quantiles for zero-inflated data and an informative sample design

open access: yesStatistical Theory and Related Fields, 2019
The Conservation Effects Assessment Project (CEAP) is a survey intended to quantify soil and nutrient loss on cropland. Estimates of the quantiles of CEAP response variables are published.
Emily Berg, Danhyang Lee
doaj   +1 more source

Estimating vital rate variation to assess early success of scrub mint translocations

open access: yesConservation Science and Practice, 2023
Species translocations are increasingly common in rare plant conservation. Wild populations can provide basic ecological knowledge to improve their chance of success.
Stephanie M. Koontz   +5 more
doaj   +1 more source

Mixed-effects regression models predicting media attention towards COVID-19.

open access: yes, 2022
Mixed-effects regression models predicting media attention towards COVID-19.
Reuben Ng (692015), Yi Wen Tan (7463702)
core   +1 more source

The Influence of Study-Level Inference Models and Study Set Size on Coordinate-Based fMRI Meta-Analyses

open access: yesFrontiers in Neuroscience, 2018
Given the increasing amount of neuroimaging studies, there is a growing need to summarize published results. Coordinate-based meta-analyses use the locations of statistically significant local maxima with possibly the associated effect sizes to aggregate
Han Bossier   +10 more
doaj   +1 more source

Planned missing data designs and methods: Options for strengthening inference, increasing research efficiency and improving animal welfare in ecological and evolutionary research

open access: yesEvolutionary Applications, 2021
Ecological and evolutionary research questions are increasingly requiring the integration of research fields along with larger data sets to address fundamental local‐ and global‐scale problems.
Daniel W. A. Noble, Shinichi Nakagawa
doaj   +1 more source

Nitrogen balance is a predictor of farm business performance in the English Farm Business Survey

open access: yesFrontiers in Sustainable Food Systems, 2023
Global environmental sustainability and food security are fundamental societal issues, and most crop production relies upon inputs from organic or inorganic nitrogen sources.
Clare Gray Betts   +3 more
doaj   +1 more source

Smooth-car mixed models for spatial count data [PDF]

open access: yes, 2008
Penalized splines (P-splines) and individual random effects are used for the analysis of spatial count data. P-splines are represented as mixed models to give a unified approach to the model estimation procedure.
Durbán, María, Lee, Dae-Jin
core   +1 more source

Feasibility of EEG Phase-Amplitude Coupling to Stratify Encephalopathy Severity in Neonatal HIE Using Short Time Window

open access: yesBrain Sciences, 2022
Goal: It is challenging to clinically discern the severity of neonatal hypoxic ischemic encephalopathy (HIE) within hours after birth in time for therapeutic decision-making for hypothermia.
Xinlong Wang   +6 more
doaj   +1 more source

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