Publications by authors named "M D Varnum"

Family caregivers of children diagnosed with cancer often experience periods of significant stress. We provide an in-depth examination of the impacts of structural (health care and leave policies) and meso-level (organizations and communities/social networks) factors on caregiver coping during childhood cancer treatment. We conducted a secondary analysis of a comprehensive qualitative dataset examining the impacts of structural and meso-level factors on caregiver coping from in-depth, semi-structured interviews with 49 caregivers representing 38 unique cases of childhood cancer.

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How do natural changes in disease avoidance motivation shape thoughts about and behaviors toward ingroup and outgroup members? During the COVID-19 pandemic, political party affiliation has been a strong predictor in the United States of COVID-19-related opinions, attitudes, and behaviors. Using a six-wave longitudinal panel survey of representative Americans (on Prolific, = 1,124, from April 2020 to February 2021), we explored how naturally occurring changes across time in both risks of COVID-19 infection and people's disease avoidance motivation shaped thoughts about and behaviors toward Republicans and Democrats (e.g.

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We examine the opportunities and challenges of expert judgment in the social sciences, scrutinizing the way social scientists make predictions. While social scientists show above-chance accuracy in predicting laboratory-based phenomena, they often struggle to predict real-world societal changes. We argue that most causal models used in social sciences are oversimplified, confuse levels of analysis to which a model applies, misalign the nature of the model with the nature of the phenomena, and fail to consider factors beyond the scientist's pet theory.

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Many animal species exhibit seasonal changes in their physiology and behavior. Yet despite ample evidence that humans are also responsive to seasons, the impact of seasonal changes on human psychology is underappreciated relative to other sources of variation (e.g.

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