Adam Herschel Smiley
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Adam Herschel Smiley has a total of 224 co-authors. Here are the top co-authors by number of shared publications:
- Cheryl R. Kaiser
Department of Psychology, University of Washington
3 shared publications - A. Timur Sevincer
Institute of Psychology, Leuphana University of Lüneburg , Lüneburg 21335
2 shared publications Andree Hartanto
2 shared publicationsArash Arami
2 shared publicationsAstrid Schütz
2 shared publicationsAymeric Vie
2 shared publications
Latest Publications
- Open Access
- 5 October 2026
- Published by Springer Nature in Scientific Reports
Political heterogeneity in American churches and affective polarization
Hostility and social distance between American Democrats and Republicans is pronounced and problematic. Previous research suggests cross-party contact reduces affective polarization. In two pre-registered studies, we examine whether attending church frequently, and with a greater proportion of out-partisans, predicts lower affective polarization in American Christians. In Study 1 ( N = 503), we find that more frequent church attendance is only marginally associated with lower social distance and affective polarization, though the relationship is significant when excluding policy consistency from the model. Furthermore, we find no significant linear relationship between the proportion of out-partisans at one’s church and social distance and affective polarization. Rather, exploratory analyses suggested a significant quadratic relationship, with social distance and affective polarization lowest among Christians with moderate levels of out-partisans in their congregations. Study 2 ( N = 497) replicated these findings with significant U-shaped relationships between out-party percentage and affective polarization. With high levels of out-partisans at church, respondents reported higher social isolation and political concealment. To understand affective polarization among American Christians it helps to know who they share a pew with at church.
- 5 October 2026
- Published by Springer Nature in Scientific Reports
Open AccessPolitical heterogeneity in American churches and affective polarization
Hostility and social distance between American Democrats and Republicans is pronounced and problematic. Previous research suggests cross-party contact reduces affective polarization. In two pre-registered studies, we examine whether attending church frequently, and with a greater proportion of out-partisans, predicts lower affective polarization in American Christians. In Study 1 ( N = 503), we find that more frequent church attendance is only marginally associated with lower social distance and affective polarization, though the relationship is significant when excluding policy consistency from the model. Furthermore, we find no significant linear relationship between the proportion of out-partisans at one’s church and social distance and affective polarization. Rather, exploratory analyses suggested a significant quadratic relationship, with social distance and affective polarization lowest among Christians with moderate levels of out-partisans in their congregations. Study 2 ( N = 497) replicated these findings with significant U-shaped relationships between out-party percentage and affective polarization. With high levels of out-partisans at church, respondents reported higher social isolation and political concealment. To understand affective polarization among American Christians it helps to know who they share a pew with at church.
- Open Access
- 6 June 2025
- Published by Center for Open Science in PsyArXiv
Partisan Communities and Affective Polarization
American communities have become increasingly politically homogenous (Bishop & Cushing, 2008), with affective polarization, a form of animosity between political groups, concurrently on the rise (Iyengar et al., 2019). We hypothesized that individuals living in areas with greater proportions of out-partisans would report lower levels of affective polarization. In Study 1, 2016 American National Election Study respondents (N = 3,378) living in counties with more out-partisans averaged lower levels of party-directed affective polarization, controlling for partisan, policy, and demographic factors. In Study 2 (N = 362 via Prolific), similar analyses revealed that American partisans with more out-partisans in their counties and precincts reported lower levels of social distance from out-party members and greater cross-party contact, but not significantly lower voter-directed affective polarization. Cross-party contact mediated the relationship between the percentage of out-partisans in a community and affective polarization, highlighting the intersection of place and psychology in understanding this societal challenge.
- 6 June 2025
- Published by Center for Open Science in PsyArXiv
Open AccessPartisan Communities and Affective Polarization
American communities have become increasingly politically homogenous (Bishop & Cushing, 2008), with affective polarization, a form of animosity between political groups, concurrently on the rise (Iyengar et al., 2019). We hypothesized that individuals living in areas with greater proportions of out-partisans would report lower levels of affective polarization. In Study 1, 2016 American National Election Study respondents (N = 3,378) living in counties with more out-partisans averaged lower levels of party-directed affective polarization, controlling for partisan, policy, and demographic factors. In Study 2 (N = 362 via Prolific), similar analyses revealed that American partisans with more out-partisans in their counties and precincts reported lower levels of social distance from out-party members and greater cross-party contact, but not significantly lower voter-directed affective polarization. Cross-party contact mediated the relationship between the percentage of out-partisans in a community and affective polarization, highlighting the intersection of place and psychology in understanding this societal challenge.
- 4 June 2025
- Published by SAGE Publications in Social Psychological and Personality Science
- Vol. 17 (2) , 169-180
Partisan Communities and Affective Polarization
American communities have become increasingly politically homogeneous, with affective polarization, a form of animosity between political groups, concurrently on the rise. We hypothesized that individuals living in areas with greater proportions of out-partisans would report lower levels of affective polarization. In Study 1, 2016 American National Election Study respondents ( N = 3,378) living in counties with more out-partisans averaged lower levels of party -directed affective polarization, controlling for partisan, policy, and demographic factors. In Study 2 ( N = 362 via Prolific), similar analyses revealed that American partisans with more out-partisans in their counties and precincts reported lower levels of social distance from out-party members and greater cross-party contact, but not significantly lower voter -directed affective polarization. Cross-party contact mediated the relationship between the percentage of out-partisans in a community and affective polarization, highlighting the intersection of place and psychology in understanding this societal challenge.
- 4 June 2025
- Published by SAGE Publications in Social Psychological and Personality Science
- Vol. 17 (2) , 169-180
Partisan Communities and Affective Polarization
American communities have become increasingly politically homogeneous, with affective polarization, a form of animosity between political groups, concurrently on the rise. We hypothesized that individuals living in areas with greater proportions of out-partisans would report lower levels of affective polarization. In Study 1, 2016 American National Election Study respondents ( N = 3,378) living in counties with more out-partisans averaged lower levels of party -directed affective polarization, controlling for partisan, policy, and demographic factors. In Study 2 ( N = 362 via Prolific), similar analyses revealed that American partisans with more out-partisans in their counties and precincts reported lower levels of social distance from out-party members and greater cross-party contact, but not significantly lower voter -directed affective polarization. Cross-party contact mediated the relationship between the percentage of out-partisans in a community and affective polarization, highlighting the intersection of place and psychology in understanding this societal challenge.
- 1 January 2025
- Published by Psi Chi, the International Honor Society in Psychology in Psi Chi Journal of Psychological Research
- Vol. 30 (4) , 382-390
Empowered to Choose: Investigating Job Autonomy and Parental Burnout in the Context of Work-Family Conflict
From the lens of the self-determination theory, when individuals experience greater job autonomy, they tend to experience greater well-being, work satisfaction, and less job burnout (Autin et al., 2021; Deci & Ryan, 2000; Fernet et al., 2010). However, less is known about how job autonomy relates to family life. We built on previous research and considered the association between job autonomy and parental burnout along with work–family conflict. We hypothesized that greater job autonomy would be associated with less parental burnout, and that strain related to work–family conflict (i.e., hours worked outside the home, being unmarried, number of children under the age of 5, and higher percentages of childcare responsibility) would have a main effect on parental burnout. In an original survey of 243 U.S. parents recruited via Prolific, we found that higher job autonomy (β = –.21, p < .001, 95% CI = [-.39, -.15]) predicted significantly less parental burnout. This pattern remained even when controlling for other measures of work–family conflict. Other measures of work–family conflict did not significantly predict more parental burnout. These findings indicate the importance of job autonomy in the lives of working parents.
- 1 January 2025
- Published by Psi Chi, the International Honor Society in Psychology in Psi Chi Journal of Psychological Research
- Vol. 30 (4) , 382-390
Empowered to Choose: Investigating Job Autonomy and Parental Burnout in the Context of Work-Family Conflict
From the lens of the self-determination theory, when individuals experience greater job autonomy, they tend to experience greater well-being, work satisfaction, and less job burnout (Autin et al., 2021; Deci & Ryan, 2000; Fernet et al., 2010). However, less is known about how job autonomy relates to family life. We built on previous research and considered the association between job autonomy and parental burnout along with work–family conflict. We hypothesized that greater job autonomy would be associated with less parental burnout, and that strain related to work–family conflict (i.e., hours worked outside the home, being unmarried, number of children under the age of 5, and higher percentages of childcare responsibility) would have a main effect on parental burnout. In an original survey of 243 U.S. parents recruited via Prolific, we found that higher job autonomy (β = –.21, p < .001, 95% CI = [-.39, -.15]) predicted significantly less parental burnout. This pattern remained even when controlling for other measures of work–family conflict. Other measures of work–family conflict did not significantly predict more parental burnout. These findings indicate the importance of job autonomy in the lives of working parents.
- Open Access
- 26 August 2024
- Published by Center for Open Science in PsyArXiv
Family Ties: Perceived College Student-Parent Political Differences and Relationship Quality
Political polarization causes friction in many interpersonal relationships – but are close familial relationships buffered from this divisive force? In three pre-registered studies, we examine whether the relationship between college students and their parents can withstand perceived political difference. We find parent-child relationship quality is generally robust to perceived political differences. The few student perceptions of politics-related relationship impairments we did observe were statistically small, and there was no evidence that parents’ perceptions of political-related differences harmed their relationships with their children. This provides initial evidence that the parent-child relationship may be one that is relatively immune from the harmful effects of political polarization.
- 26 August 2024
- Published by Center for Open Science in PsyArXiv
Open AccessFamily Ties: Perceived College Student-Parent Political Differences and Relationship Quality
Political polarization causes friction in many interpersonal relationships – but are close familial relationships buffered from this divisive force? In three pre-registered studies, we examine whether the relationship between college students and their parents can withstand perceived political difference. We find parent-child relationship quality is generally robust to perceived political differences. The few student perceptions of politics-related relationship impairments we did observe were statistically small, and there was no evidence that parents’ perceptions of political-related differences harmed their relationships with their children. This provides initial evidence that the parent-child relationship may be one that is relatively immune from the harmful effects of political polarization.
- Top Cited Papers
- 9 February 2023
- Published by Springer Nature in Nature Human Behaviour
- Vol. 7 (4) , 484-501
Insights into the accuracy of social scientists’ forecasts of societal change
How well can social scientists predict societal change, and what processes underlie their predictions? To answer these questions, we ran two forecasting tournaments testing the accuracy of predictions of societal change in domains commonly studied in the social sciences: ideological preferences, political polarization, life satisfaction, sentiment on social media, and gender–career and racial bias. After we provided them with historical trend data on the relevant domain, social scientists submitted pre-registered monthly forecasts for a year (Tournament 1; N = 86 teams and 359 forecasts), with an opportunity to update forecasts on the basis of new data six months later (Tournament 2; N = 120 teams and 546 forecasts). Benchmarking forecasting accuracy revealed that social scientists’ forecasts were on average no more accurate than those of simple statistical models (historical means, random walks or linear regressions) or the aggregate forecasts of a sample from the general public (N = 802). However, scientists were more accurate if they had scientific expertise in a prediction domain, were interdisciplinary, used simpler models and based predictions on prior data.
- 9 February 2023
- Published by Springer Nature in Nature Human Behaviour
- Vol. 7 (4) , 484-501
Top Cited PapersInsights into the accuracy of social scientists’ forecasts of societal change
How well can social scientists predict societal change, and what processes underlie their predictions? To answer these questions, we ran two forecasting tournaments testing the accuracy of predictions of societal change in domains commonly studied in the social sciences: ideological preferences, political polarization, life satisfaction, sentiment on social media, and gender–career and racial bias. After we provided them with historical trend data on the relevant domain, social scientists submitted pre-registered monthly forecasts for a year (Tournament 1; N = 86 teams and 359 forecasts), with an opportunity to update forecasts on the basis of new data six months later (Tournament 2; N = 120 teams and 546 forecasts). Benchmarking forecasting accuracy revealed that social scientists’ forecasts were on average no more accurate than those of simple statistical models (historical means, random walks or linear regressions) or the aggregate forecasts of a sample from the general public (N = 802). However, scientists were more accurate if they had scientific expertise in a prediction domain, were interdisciplinary, used simpler models and based predictions on prior data.
- Open Access
- 12 September 2022
- Published by Center for Open Science in PsyArXiv
Insights into accuracy of social scientists' forecasts of societal change
How well can social scientists predict societal change, and what processes underlie their predictions? To answer these questions, we ran two forecasting tournaments testing accuracy of predictions of societal change in domains commonly studied in the social sciences: ideological preferences, political polarization, life satisfaction, sentiment on social media, and gender-career and racial bias. Following provision of historical trend data on the domain, social scientists submitted pre-registered monthly forecasts for a year (Tournament 1; N=86 teams/359 forecasts), with an opportunity to update forecasts based on new data six months later (Tournament 2; N=120 teams/546 forecasts). Benchmarking forecasting accuracy revealed that social scientists’ forecasts were on average no more accurate than simple statistical models (historical means, random walk, or linear regressions) or the aggregate forecasts of a sample from the general public (N=802). However, scientists were more accurate if they had scientific expertise in a prediction domain, were interdisciplinary, used simpler models, and based predictions on prior data.
- 12 September 2022
- Published by Center for Open Science in PsyArXiv
Open AccessInsights into accuracy of social scientists' forecasts of societal change
How well can social scientists predict societal change, and what processes underlie their predictions? To answer these questions, we ran two forecasting tournaments testing accuracy of predictions of societal change in domains commonly studied in the social sciences: ideological preferences, political polarization, life satisfaction, sentiment on social media, and gender-career and racial bias. Following provision of historical trend data on the domain, social scientists submitted pre-registered monthly forecasts for a year (Tournament 1; N=86 teams/359 forecasts), with an opportunity to update forecasts based on new data six months later (Tournament 2; N=120 teams/546 forecasts). Benchmarking forecasting accuracy revealed that social scientists’ forecasts were on average no more accurate than simple statistical models (historical means, random walk, or linear regressions) or the aggregate forecasts of a sample from the general public (N=802). However, scientists were more accurate if they had scientific expertise in a prediction domain, were interdisciplinary, used simpler models, and based predictions on prior data.
- Open Access
- 1 February 2021
- Published by Center for Open Science in PsyArXiv
Null Regions: A Unified Conceptual Framework for Statistical Inference
Ruling out the possibility that there is absolutely no effect or association between variables may be a good first step, but it is rarely the ultimate goal of science. Yet that is the only inference provided by traditional null hypothesis significance testing (NHST), which has been a mainstay of many scientific fields. Reliance on NHST also makes it difficult to define what it means to replicate a finding, and leads to an uncomfortable quandary in which increasing precision in data reduces researchers' ability to perform theory falsification. To solve these problems, in recent years several alternatives to traditional NHST have been proposed. However, each new test is described using its own terminology and practiced in different fields. We describe a simple, unified framework for conceptualizing all these tests so that it is not necessary to learn them separately. Moreover, the framework allows researchers to conduct any of these tests by asking just one question: is the confidence interval entirely outside the null region(s)? This framework may also help researchers choose the test(s) that best answers their research question when simply ruling out ‘no effect at all’ is not enough.
- 1 February 2021
- Published by Center for Open Science in PsyArXiv
Open AccessNull Regions: A Unified Conceptual Framework for Statistical Inference
Ruling out the possibility that there is absolutely no effect or association between variables may be a good first step, but it is rarely the ultimate goal of science. Yet that is the only inference provided by traditional null hypothesis significance testing (NHST), which has been a mainstay of many scientific fields. Reliance on NHST also makes it difficult to define what it means to replicate a finding, and leads to an uncomfortable quandary in which increasing precision in data reduces researchers' ability to perform theory falsification. To solve these problems, in recent years several alternatives to traditional NHST have been proposed. However, each new test is described using its own terminology and practiced in different fields. We describe a simple, unified framework for conceptualizing all these tests so that it is not necessary to learn them separately. Moreover, the framework allows researchers to conduct any of these tests by asking just one question: is the confidence interval entirely outside the null region(s)? This framework may also help researchers choose the test(s) that best answers their research question when simply ruling out ‘no effect at all’ is not enough.