Francis Yuen’s research while affiliated with University of British Columbia and other places

The Cambridge Handbook of Moral Psychology is an essential guide to the study of moral cognition and behavior. Originating as a philosophical exploration of values and virtues, moral psychology has evolved into a robust empirical science intersecting psychology, philosophy, anthropology, sociology, and neuroscience. Contributors to this interdisciplinary handbook explore a diverse set of topics, including moral judgment and decision making, altruism and empathy, and blame and punishment. Tailored for graduate students and researchers across psychology, philosophy, anthropology, neuroscience, political science, and economics, it offers a comprehensive survey of the latest research in moral psychology, illuminating both foundational concepts and cutting-edge developments.

Evaluating whether someone's behavior is praiseworthy or blameworthy is a fundamental human trait. A seminal study by Hamlin and colleagues in 2007 suggested that the ability to form social evaluations based on third-party interactions emerges within the first year of life: infants preferred a character who helped, over hindered, another who tried but failed to climb a hill. This sparked a new line of inquiry into the origins of social evaluations; however, replication attempts have yielded mixed results. We present a preregistered, multi-laboratory, standardized study aimed at replicating infants' preference for Helpers over Hinderers. We intended to (1) provide a precise estimate of the effect size of infants' preference for Helpers over Hinderers, and (2) determine the degree to which preferences are based on social information. Using the ManyBabies framework for big team-based science, we tested 1018 infants (567 included, 5.5-10.5 months) from 37 labs across five continents. Overall, 49.34% of infants preferred Helpers over Hinderers in the social condition, and 55.85% preferred characters who pushed up, versus down, an inanimate object in the nonsocial condition; neither proportion differed from chance or from each other. This study provides evidence against infants' prosocial preferences in the hill paradigm, suggesting the effect size is weaker, absent, and/or develops later than previously estimated. As the first of its kind, this study serves as a proof-of-concept for using active behavioral measures (e.g., manual choice) in large-scale, multi-lab projects studying infants.

Evaluating whether someone's behavior is praiseworthy or blameworthy is a fundamental human trait. A seminal study by Hamlin and colleagues in 2007 suggested that the ability to form social evaluations based on third-party interactions emerges within the first year of life: infants preferred a character who helped, over hindered, another who tried but failed to climb a hill. This sparked a new line of inquiry into the origins of social evaluations; however, replication attempts have yielded mixed results. We present a preregistered, multi-laboratory, standardized study aimed at replicating infants’ preference for Helpers over Hinderers. We intended to (1) provide a precise estimate of the effect size of infants’ preference for Helpers over Hinderers, and (2) determine the degree to which preferences are based on social information. Using the ManyBabies framework for big team-based science, we tested 1018 infants (567 included, 5.5–10.5 months) from 37 labs across five continents. Overall, 49.34% of infants preferred Helpers over Hinderers in the social condition, and 55.85% preferred characters who pushed up, versus down, an inanimate object in the nonsocial condition; neither proportion differed from chance or from each other. This study provides evidence against infants’ prosocial preferences in the hill paradigm, suggesting the effect size is weaker, absent, and/or develops later than previously estimated. As the first of its kind, this study serves as a proof-of-concept for using active behavioral measures (e.g., manual choice) in large-scale, multi-lab projects studying infants.

Do toddlers and adults engage in spontaneous Theory of Mind (ToM)? Evidence from anticipatory looking (AL) studies suggests they do. But a growing body of failed replication studies raised questions about the paradigm’s suitability, urging the need to test the robustness of AL as a spontaneous measure of ToM. In a multi-lab collaboration we examine whether 18- to 27-month- olds’ and adults’ anticipatory looks distinguish between two basic forms of epistemic states: knowledge and ignorance. In toddlers [ANTICIPATED n = 520 50% FEMALE] and adults [ANTICIPATED n = 408, 50% FEMALE], we found [SUPPORT/NO SUPPORT] for epistemic state-based action anticipation. Future research can probe whether this conclusion extends to more complex kinds of epistemic states, such as true and false beliefs.

Young children often encounter unsolvable problems with which they require others’ help. To receive adequate assistance, children must be savvy about whom they seek help from: Effective helpers must possess both the ability to help (e.g., competence) and a willingness to do so (e.g., benevolence). Although past work suggests that information about competence and benevolence can inform young children’s help-seeking behavior, it remains unclear how and whether children utilize said factors independently of each other. Furthermore, it is unclear whether they can generalize potential helpers’ competence from one task to another. The current experiments examined whether 22- to 23-month-olds confronted with a broken toy selectively sought help from agents who had previously demonstrated either competence (Experiment 1) or benevolence (Experiment 2). In Experiment 1, infants preferred to seek help from a competent agent who successfully opened a closed box over one who failed to do so. In Experiment 2, infants selectively sought help from a benevolent agent who helped a third party by returning a lost ball, over an agent who stole the ball instead. These patterns of selectivity were not driven by associative valence matching; in Experiment 3, infants showed no preference for an agent who was itself helped versus an agent who was hindered. These results suggest that before their second birthday, infants independently utilize cues to both competence and benevolence to inform their help seeking, using information generalized from novel contexts. We discuss the potential nature of this generalization as well as directions for future work.

Measuring eye movements remotely via the participant's webcam promises to be an attractive methodological addition to in‐person eye‐tracking in the lab. However, there is a lack of systematic research comparing remote web‐based eye‐tracking with in‐lab eye‐tracking in young children. We report a multi‐lab study that compared these two measures in an anticipatory looking task with toddlers using WebGazer.js and jsPsych. Results of our remotely tested sample of 18‐27‐month‐old toddlers ( N = 125) revealed that web‐based eye‐tracking successfully captured goal‐based action predictions, although the proportion of the goal‐directed anticipatory looking was lower compared to the in‐lab sample ( N = 70). As expected, attrition rate was substantially higher in the web‐based (42%) than the in‐lab sample (10%). Excluding trials based on visual inspection of the match of time‐locked gaze coordinates and the participant's webcam video overlayed on the stimuli was an important preprocessing step to reduce noise in the data. We discuss the use of this remote web‐based method in comparison with other current methodological innovations. Our study demonstrates that remote web‐based eye‐tracking can be a useful tool for testing toddlers, facilitating recruitment of larger and more diverse samples; a caveat to consider is the larger drop‐out rate.

Culture is a key determinant of children’s development both in its own right and as a measure of generalizability of developmental phenomena. Studying the role of culture in development requires information about participants’ demographic backgrounds. However, both reporting and treatment of demographic data are limited and inconsistent in child development research. A barrier to reporting demographic data in a consistent fashion is that no standardized tool currently exists to collect these data. Variation in cultural expectations, family structures, and life circumstances across communities make the creation of a unifying instrument challenging. Here, we present a framework to standardize demographic reporting for early child development (birth to 3 years of age), focusing on six core sociodemographic construct categories: biological information, gestational status, health status, community of descent, caregiving environment, and socioeconomic status. For each category, we discuss potential constructs and measurement items and provide guidance for their use and adaptation to diverse contexts. These items are stored in an open repository of context-adapted questionnaires that provide a consistent approach to obtaining and reporting demographic information so that these data can be archived and shared in a more standardized format.

The past decade has witnessed a proliferation of big team science (BTS), endeavours where a comparatively large number of researchers pool their intellectual and/or material resources in pursuit of a common goal. Despite this burgeoning interest, there exists little guidance on how to create, manage and participate in these collaborations. In this paper, we integrate insights from a multi-disciplinary set of BTS initiatives to provide a how-to guide for BTS. We first discuss initial considerations for launching a BTS project, such as building the team, identifying leadership, governance, tools and open science approaches. We then turn to issues related to running and completing a BTS project, such as study design, ethical approvals and issues related to data collection, management and analysis. Finally, we address topics that present special challenges for BTS, including authorship decisions, collaborative writing and team decision-making.

Grossmann posits that heightened fearfulness in humans evolved to facilitate cooperative caregiving. We argue that three of his claims - that children express more fear than other apes, that they are uniquely responsive to fearful expressions, and that expression and perception of fear are linked with prosocial behaviors - are inconsistent with existing literature or require additional supporting evidence.