Papers by Steven Worthington
American Journal of Biological Anthropology, 2025
The American Journal of Clinical Nutrition, 2023
Social Science & Medicine, 2023
Supplemental material, sj-pdf-1-cpx-10.1177_2167702621991804 for A Year in the Social Life of a T... more Supplemental material, sj-pdf-1-cpx-10.1177_2167702621991804 for A Year in the Social Life of a Teenager: Within-Persons Fluctuations in Stress, Phone Communication, and Anxiety and Depression by Alexandra M. Rodman, Constanza M. Vidal Bustamante, Meg J. Dennison, John C. Flournoy, Daniel D. L. Coppersmith, Erik C. Nook, Steven Worthington, Patrick Mair and Katie A. McLaughlin in Clinical Psychological Science
TNT_character_matrix_positions.csv: provides descriptions of the 115 characters and their positio... more TNT_character_matrix_positions.csv: provides descriptions of the 115 characters and their positions in the character matrices. TNT_95CI_character_matrix.tnt: TNT format character matrix with 115 traits. Each trait value is a 95% confidence interval for the species mean. TNT_DVC_character_matrix.tnt: TNT format character matrix with 115 traits. Each trait value is coded using divergence coding. TNT_GWC_character_matrix.tnt: TNT format character matrix with 115 traits. Each trait value is coded using generalized gap weighting. TNT_HSC_character_matrix.tnt: TNT format character matrix with 115 traits. Each trait value is coded using homogeneous subset coding. TNT_IDO_character_matrix.tnt: TNT format character matrix with 115 traits. Each trait value is coded using identification of overlap coding. TNT_Mean_character_matrix.tnt: TNT format character matrix with 115 traits. Each trait value is a species mean.
Replication code and data for the paper: "Native plant phylogenetic diversity set to decline... more Replication code and data for the paper: "Native plant phylogenetic diversity set to decline in the United States over the next 50 years." The following files are included in this repository: 1) R scripts (numbered 0 through 9) include replication code for data analysis 2) Datasets (6 zip folders) contain the data analyzed in the R scripts
Table S1. Anthropoid (n=100) lower molar proportions, body mass, and diet summary data. Table S2.... more Table S1. Anthropoid (n=100) lower molar proportions, body mass, and diet summary data. Table S2. Molar area proportion pglmm posterior probabilities. Table S3. Relative M 2 area pglmm posterior probabilities. Table S4. Proportion mediated (p r m ) pglmm posterior probabilities. Table S5. Modern human (n=66) lower molar proportions data. Table S6. Strepsirrhine (n=1) lower molar proportions summary data. Table S7. Primate molar crown formation time data. Figure S1. Molar area correction coefficients method. Figure S2. Molar area correction coefficients test. Figure S3. Anthropoid lower molar proportions of individual specimens (n=2,895). Figure S4. Posterior density of molar proportion slope (interspecific). Figure S5. Posterior density of molar proportion intercept. Figure S6. Posterior density of relative M 2 area slope (interspecific). Figure S7. Posterior density of relative M 2 area intercept. Figure S8. Posterior density of proportion mediated (interspecific). Figure S9. Ln bo...
1 ) Code for simulating community phylogenies: community_simulations_creation.R [taxon].gene [tax... more 1 ) Code for simulating community phylogenies: community_simulations_creation.R [taxon].gene [taxon].phy [taxon].RAxML_bestTree.tre [taxon].Simulate.A.Community.pl [taxon].Simulate.B.Community.pl [taxon].Simulate.C.Community.pl [taxon].Simulate.D.Community.pl 2) R code for creating and comparing phylogenetic diversity metrics: simulated_metric_calculation_and_comparison.R empirical_metric_calculation_and_comparison.R 3) R code and data for statistical analyses: simulated_data_analysis.R empirical_data_analysis.R simulated_interval_individual_lme_data.csv simulated_summary_interval_individual_lme_data.csv empirical_interval_individual_lme_data.csv empirical_summary_interval_lme_data.csv
Data and R replication code for testing the Marginal Habitat Hypothesis. The R code files contain... more Data and R replication code for testing the Marginal Habitat Hypothesis. The R code files contain all models and are organized by the figures they generate for the associated paper. The data are sourced from: 1) the Standard Cross Cultural Sample (SCCS). 2) NASA Moderate Resolution Imaging Spectroradiometer (MODIS) NPP data (MOD17A3 algorithm) from Numerical Terra Dynamic Simulation Group at the University of Montana. 3) Marine Ecoregions Of the World (MEOW): http://maps.tnc.org/files/metadata/MEOW.xml 4) Terrestrial Ecoregions Of the World (TEOW): http://maps.tnc.org/files/metadata/TerrEcos.xml
BMC Evolutionary Biology, 2016
This repository contains four files: 1) a NEXUS phylogeny of 100 anthropoid primates; 2) a CSV te... more This repository contains four files: 1) a NEXUS phylogeny of 100 anthropoid primates; 2) a CSV text file of anthropoid primate lower molar areas, body mass, and primary dietary category; 3) a CSV text file of modern human lower molar area proportions; and, 4) an R script containing replication code for fitting Bayesian phylogenetic generalized linear mixed models to the morphometric data. These files are associated with the paper "The Evolution of Anthropoid Molar Proportions" in BMC Evolutionary Biology (2016).
Clinical Psychological Science, 2021
Stressful life events (SLEs) are strongly associated with the emergence of adolescent anxiety and... more Stressful life events (SLEs) are strongly associated with the emergence of adolescent anxiety and depression, but the underlying mechanisms remain poorly understood, especially at the within-persons level. We investigated how adolescent social communication (i.e., frequency of calls and texts) following SLEs relates to changes in internalizing symptoms in a multitimescale, intensive, year-long study ( N = 30; n = 355 monthly observations; n ≈ 5,000 experience-sampling observations). Within-persons increases in SLEs were associated with receiving more calls than usual at both the month and moment levels and making more calls at the month level. Increased calls were prospectively associated with worsening internalizing symptoms at the month level only, suggesting that SLEs rapidly influence phone communication patterns, but these communication changes may have a more protracted, cumulative influence on internalizing symptoms. Finally, increased incoming calls prospectively mediated th...
ACR Open Rheumatology, 2021
Previous studies have demonstrated that low physical activity levels during youth are associated ... more Previous studies have demonstrated that low physical activity levels during youth are associated with the development of thin knee cartilage, which may increase susceptibility to osteoarthritis later in life. Here, we propose and test the hypothesis that reductions in physical activity impair knee cartilage growth among people in developing countries experiencing urbanization and increased market integration.
Scientific Reports, 2021
To test the effects of domestication on craniofacial skeletal morphology, we used three-dimension... more To test the effects of domestication on craniofacial skeletal morphology, we used three-dimensional geometric morphometrics (GM) along with linear and endocranial measurements to compare selected (domesticated) and unselected foxes from the Russian Farm-Fox Experiment to wild foxes from the progenitor population from which the farmed foxes are derived. Contrary to previous findings, we find that domesticated and unselected foxes show minimal differences in craniofacial shape and size compared to the more substantial differences between the wild foxes and both populations of farmed foxes. GM analyses and linear measurements demonstrate that wild foxes differ from farmed foxes largely in terms of less cranial base flexion, relatively expanded cranial vaults, and increased endocranial volumes. These results challenge the assumption that the unselected population of foxes kept as part of the Russian Farm-Fox experiment are an appropriate proxy for ‘wild’ foxes in terms of craniofacial m...
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Papers by Steven Worthington