|Experimenter effects on pain reporting in women vary across the menstrual cycle|
JM Vigil, J DiDomenico, C Strenth, P Coulombe, E Kruger, AA Mueller, ...
International Journal of Endocrinology 2015, 2015
|The changing landscape of friendship in the pandemic: Males, younger people, and less educated people experience more negative effects of the pandemic on their friendships|
J Ayers, D Guevara Beltran, A Van Horn, L Cronk, PM Todd, A Aktipis
E Schniter, SJ Macfarlan, JJ Garcia, G Ruiz-Campos, D Guevara Beltran, ...
Human Nature, 1-36, 2021
|Fitness interdependence as indexed by shared fate: Factor structure and validity of a new measure.|
JD Ayers, D Sznycer, D Sullivan, D Guevara Beltrán, OR van den Akker, ...
Evolutionary Behavioral Sciences, 2022
|“A Solidarity-Type World”: Need-Based Helping among Ranchers in the Southwestern United States|
L Cronk, D Guevara Beltrán, DL Mercado, A Aktipis
Human Nature 32 (2), 482-508, 2021
|The role of dispersal and school attendance on reproductive dynamics in small, dispersed populations: Choyeros of Baja California Sur, Mexico|
SJ Macfarlan, R Schacht, E Schniter, JJ Garcia, D Guevara Beltran, ...
Plos one 15 (10), e0239523, 2020
|How is the COVID-19 pandemic affecting cooperation?|
J Ayers, D Guevara Beltran, J Alcock, C Baciu, S Claessens, L Cronk, ...
|The curse of curves|
JM Vigil, CR Strenth, AA Mueller, J DiDomenico, D Guevara Beltran, ...
Human Nature 26 (2), 235-254, 2015
|A new measure of perceived fitness interdependence: Factor structure and validity|
D Sznycer, J Ayers, D Sullivan, D Guevara Beltran, OR van den Akker, ...
|Mask wearing is associated with COVID-19 Prevalence, Risk, Stress, and Future Orientation|
D Guevara Beltran, C Isch, J Ayers, J Alcock, JF Brinkworth, L Cronk, ...
|Associations between change over time in pandemic-related stress and change in physical activity|
KE Wilson, A Corbett, A Van Horn, DG Beltran, JD Ayers, J Alcock, ...
Journal of Physical Activity and Health 18 (11), 1419-1426, 2021
|What predicts attitudes about mask wearing?|
C Isch, D Guevara Beltran, J Ayers, J Alcock, L Cronk, H Hurmuz-Sklias, ...
|Mask wearing behavior across routine and leisure activities during COVID-19|
D Guevara Beltran, C Isch, JD Ayers, J Alcock, JF Brinkworth, L Cronk, ...
|Can some microbes promote host stress and benefit evolutionarily from this strategy?|
A Aktipis, D Guevara Beltran
BioEssays 43 (1), 2000188, 2021
|A new measure of perceived interdependence: Factor structure and validity|
JD Ayers, D Sznycer, D Sullivan, D Guevara Beltrán, O Van den Akker, ...
Preprint). https://doi. org/10.31234/osf. io/7yzhd, 2020
|On the proximate and ultimate functions of the social emotions with regard to cooperation|
D Guevara Beltran, MN Shiota, A Aktipis
L. Al-Shawaf & T. K. Shackelford (Eds.), The Oxford Handbook of Evolution …, 0
|Unpredictable needs are associated with lower expectations of repayment|
DG Beltran, D Mercado, JD Ayers, A Van Horn, J Alcock, PM Todd, ...
Current Research in Ecological and Social Psychology 4, 100095, 2023
|COVID-19 and friendships: Agreeableness and neuroticism predict being more concerned about COVID-19 and bothered by friends’ risky behavior|
JD Ayers, DG Beltran, A Van Horn, L Cronk, PM Todd, A Aktipis
|Wishing our friends would take it seriously: What predicts concern about friends’ behavior during the COVID-19 pandemic?|
JD Ayers, DG Beltran, A Van Horn, H Hurmuz-Sklias, L Cronk, PM Todd, ...
|Work, Love, and Learning in Utopia: Equality Reimagined: By Martin Schoenhals. Abingdon, Oxon. New York, NY: Routledge, 2019. pp. 269. ISBN: 978-1-138-54951-7|
A Aktipis, DG Beltran
Journal of Human Development and Capabilities, 1-3, 2023