Infants who are rarely spoken to nevertheless understand many words.

Theories of language development-informed largely by studies of Western, middleclass infants-have highlighted the language that caregivers direct to children as a key driver of language learning. However, some have argued that language development unfolds similarly across environmental contexts, including those in which childdirected language is scarce. This raises the possibility that children are able to learn from other sources of language in their environments, particularly the language directed to others in their environment. We explore this hypothesis with infants in an indigenous Tseltal-speaking community in Southern Mexico who are rarely spoken to, yet have the opportunity to overhear a great deal of other-directed language by virtue of being carried on their mothers' backs. Adapting a previously established gaze-tracking method for detecting early word knowledge to our field setting, we find that Tseltal infants exhibit implicit knowledge of common nouns (Exp. 1), analogous to their US peers who are frequently spoken to. Moreover, they exhibit comprehension of Tseltal honorific terms that are exclusively used to greet adults in the community (Exp. 2), representing language that could only have been learned through overhearing. In so doing, Tseltal infants demonstrate an ability to discriminate words with similar meanings and perceptually similar referents at an earlier age than has been shown among Western children. Together, these results suggest that for some infants, learning from overhearing may be an important path toward developing language.

Civilian national service programs can powerfully increase youth voter turnout.

Low rates of youth voting are a feature of contemporary democracies the world over, with the United States having some of the lowest youth turnout rates in the world. However, far too little is known about how to address the dismal rates of youth voter participation found in many advanced democracies. In this paper, we examine the causal effect of a potentially scalable solution that has attracted renewed interest today: voluntary national service programs targeted at the youth civilian population. Leveraging the large pool of young people who apply each year to participate in the Teach For America (TFA) program-a prominent voluntary national service organization in the United States that integrates college graduates into teaching roles in low-income communities for 2 y-we examine the effect of service participation on voter turnout. To do so, we match TFA administrative records to large-scale nationwide voter files and employ a fuzzy regression discontinuity design around the recommended admittance cutoff for the TFA program. We find that serving as a teacher in the Teach For America national service program has a large effect on civic participation-substantially increasing voter turnout rates among applicants admitted to the program. This effect is noticeably larger than that of previous efforts to increase youth turnout. Our results suggest that civilian national service programs targeted at young people have great promise in helping to narrow the stubborn and enduring political engagement gap between younger and older citizens.

Changing adolescent activity patterns and the correlation of self-esteem and externalizing mental health symptoms across time: results from the USA from 1991 through 2020.

BACKGROUND: Common adolescent psychiatric symptoms cluster into two dominant domains: internalizing and externalizing. Both domains are linked to self-esteem, which serves as a protective factor against a wide range of internalizing and externalizing problems. This study examined trends in US adolescents' self-esteem and externalizing symptoms, and their correlation, by sex and patterns of time use. METHODS: Using Monitoring the Future data (N = 338 896 adolescents, grades:8/10/12, years:1991-2020), we generated six patterns of time use using latent profile analysis with 17 behavior items (e.g. sports participation, parties, paid work). Groups were differentiated by high/low engagement in sports and either paid work or high/low peer socialization. Within each group, we mapped annual, sex-stratified means of (and correlation between) self-esteem and externalizing factors. We also examined past-decade rates of change for factor means using linear regression and mapped proportions with top-quartile levels of poor self-esteem, externalizing symptoms, or both. RESULTS: We found consistent increases in poor self-esteem, decreases in externalizing symptoms, and a positive correlation between the two across nearly all activity groups. We also identified a relatively constant proportion of those with high levels of both in every group. Increases in poor self-esteem were most pronounced for female adolescents with low levels of socializing, among whom externalizing symptoms also increased. CONCLUSIONS: Rising trends in poor self-esteem are consistent across time use groups, as is the existence of a group facing poor self-esteem and externalizing symptoms. Effective interventions for adolescents' poor self-esteem/co-occurring symptoms are needed broadly, but especially among female adolescents with low peer socialization.

How pervasive is joint attention? Mother-child dyads from a Wichi community reveal a different form of "togetherness".

Theories of early development have emphasized the power of caregivers as active agents in infant socialization and learning. However, there is variability, across communities, in the tendency of caregivers to engage with their infants directly. This raises the possibility that infants and children in some communities spend more time engaged in solitary activities than in dyadic or triadic interactions. Here, we focus on one such community (indigenous Wichi living in Argentina's Chaco Forest) to test this possibility. We examine naturally occurring attentional activity involving the mother and child among the Wichi and among Eurodescendant Spanish-speaking families living in Argentina. We engaged 16 families-8 Wichi and 8 Eurodescendant-in an observational study of interactions between caregivers and their 1- to 2-year-olds. A mixed-analytic approach revealed no differences between communities in the proportion of time infants spent alone, or in mother-child interaction. What does differ, however, is how mothers engage in these interactions: Wichi mothers spend a greater proportion of their time observing their infants than do Eurodescendant mothers. Moreover, when infants in both groups are alone, they focus their 'solitary' activities differently: Wichi infants engaged primarily in observation alone, whereas Eurodescendant infants were more focused on the object. Finally, all mother-child pairs engaged in dyadic and triadic (object-infant-caregiver) patterns of attention, but the triadic patterns differed considerably between cultures: Among Wichi, mothers actively "watched" infants as they engaged with objects, whereas Eurodescendant mothers actively engaged with their infants in joint attentional episodes. This work illustrates how attention and socialization, key mechanisms of early development, are culturally organized. A video abstract of this article can be viewed at https://www.youtube.com/watch?v=SwsOCLXubKQ. RESEARCH HIGHLIGHTS: Longitudinal, observational investigation of mother-infant interaction in two distinct Argentine cultural groups (Wichi and Eurodescendants) reveals both commonalities and clear community-based differences in interactions between mothers and their 1- to 2-year-olds. Wichi mother-infant dyads engaged primarily in visual observation of one another, but their Eurodescendant counterparts tended to engage in more verbal or physical interaction. We identify a new form of triadic interaction-lateral joint attention-among the Wichi dyads. This work underscores that attention and socialization, key mechanisms of early development, are culturally organized.

Linda's Cars versus Dominik's Dolls: How Do Pedagogical Educators in Training React to Children's Violations of Gender Stereotypes?

The gender stereotypes adults hold can influence whether they approve or disapprove of behavior shown by children, depending on whether this behavior is in line with stereotypes. Adults report negative evaluations toward children whose behavior does not adhere to gender stereotypes, particularly toward feminine boys. Whether pedagogical educators in training show negative reactions toward children who violate gender stereotypes has not been examined. We investigate this question by firstly assessing what gender stereotypes adults hold about children in Germany. In Study 1, we assessed descriptive, prescriptive, and proscriptive gender stereotypes identified by adults for children in German society. Stereotypes gathered from this first study were used to construct four vignettes of stereotypical and nonstereotypical boys and girls in order to examine how pedagogical educators in training (N = 414) evaluated these children in Study 2. We investigated ratings of one of these vignettes (2 × 2 between-participants design) regarding liking, perceived competence, creativity, self-esteem, prosocial behavior, as well as internalizing and externalizing problems. A series of ANOVAs revealed that girls displaying masculine behavior received advantageous ratings on competence, creativity, and self-esteem, while boys showing femininity were perceived as the most prosocial. More than gender nonconformity, masculinity and femininity strongly related to externalizing and internalizing problems, respectively. We review how our results in Germany differ from the literature originating in the USA, as we did not find backlash for feminine boys. Possible bias against femininity and toward masculinity within society and cultural and sampling factors is discussed.

Parental Sexual Socialization, Sexual Subjectivity, and Emotional Responses to Sexual Experiences among Adolescent Girls.

This study explored girls' sexual subjectivity as a pathway through which parental socialization influenced their emotions about past sexual experiences. A national online survey of 397 adolescent girls (Mage = 16.8 years) from diverse racial/ethnic backgrounds (33.0% Black, 25.7% Latina, 28.0% non-Hispanic White) assessed (1) parental messaging emphasizing relational, sex-positive, gendered sex role, abstinence-only, and sex-is-taboo discourses; (2) girls' sexual subjectivity including sexual body esteem, entitlement to sexual pleasure, and perceived sexual control; and (3) positive and negative emotional reactions to sexual experiences. Sexual subjectivity fully mediated the positive effect of relational messaging on positive emotional reactions and the negative effect on negative emotional reactions. Additionally, sexual subjectivity partially mediated the positive effect of gendered sex role messaging on negative emotional reactions. This study draws critical attention to placing the psychological aspects of girls' sense of their own sexuality and the emotional components of their sexual experience at the forefront of understanding the influence of parental sexual socialization on the sexual experiences of adolescent girls.

Learning About Sex from Different Sources: Implications for Sexual Attitudes, Sexual Knowledge, and Risky Sexual Behavior Among U.S. College Students.

This exploratory cross-sectional study, guided by primary socialization theory, examined relations between four primary socialization agents of sexual learning (i.e., mothers, fathers, friends/peers, and online media) and sexual attitudes, sexual knowledge, and risky sexual behavior. Latent-variable structural equation models were tested using self-report data obtained from 515 emerging adults who had spent at least 6 months attending in-person college classes. Results showed that learning about sex from mothers was associated with more conservative sexual attitudes and lower risky sexual behavior. Sexual learning from friends/peers was linked to liberal sexual attitudes and greater sexual knowledge. Learning from online media was associated with increased sexual knowledge. To account for a shift in sexual learning patterns from before to after entry to college, we created algebraic difference scores for each source of sexual information. Greater reliance on sexual learning from friends/peers in the past 6 months of college relative to before college was associated with liberal sexual attitudes and greater sexual knowledge. Additional analyses revealed different effects of learning about sex from mothers more during college than before college between those living on campus vs. commuters living at home. The discussion emphasizes the different role that each of the primary socialization agents plays for emerging adults' sexual development, including the protective role of mothers against risky sexual behavior, the impact of friends and peers on sexual attitudes and knowledge, and the shifting dynamics of socialization processes during college.

Family-level moderators of daily associations between discrimination and distress among Mexican-origin youth.

The current study evaluated cultural values and family processes that may moderate associations between daily racial-ethnic discrimination and distress among Mexican-origin youth. Integrating micro-time (daily diary) and macro-time (longitudinal survey) research design features, we examined familism, family cohesion, and ethnic-racial socialization from youth-, mother-, and father- reports as potential buffers of daily associations between youth racial-ethnic discrimination and youth distress (negative affect and anger). The analytic sample, drawn from the Seguimos Avanzando study, included 317 Mexican-origin adolescents (Mage = 13.5 years) and their parents, recruited from the Midwestern United States. Results indicated that youth-reported familism and family cohesion significantly buffered daily associations between youth racial-ethnic discrimination and youth distress. In contrast, parent-reported familism and family cohesion and some aspects of ethnic-racial socialization exacerbated the discrimination to distress link. The implications of these results are discussed to inform efforts supporting the healthy development of Mexican-origin youth and their families.

Longitudinal coupling of emotional wellbeing in parent-adolescent dyads: Evaluating the role of daily life positive affect socialization processes.

This study evaluated the role of bidirectional micro- and macro- level positive affect-related processes in the longitudinal coupling of depressive symptoms in parent-adolescent dyads. Using a measurement-burst design, including dyadic experience sampling methods (ESM) and monthly follow-ups over one year, this work investigated associations between (1) parental depressive symptoms and anhedonia and parental daily-life enhancing and dampening responses to youth positive affect; (2) parental daily-life enhancing and dampening and trajectories of youth positive affect, negative affect, and depressive symptoms across one year; and (3) youth developmental trajectories and prospective parental daily-life enhancing and dampening, and parental depressive symptoms and anhedonia at one-year follow-up. Participants included 146 early adolescents (52.1% girls, 47.9% boys; Mage[SD] = 12.71[.86]) and 139 parents (78.7% mothers; Mage[SD] = 44.11[5.08]). Parental enhancing and dampening were measured using a dyadic ESM procedure at baseline and 12-months. Youth completed monthtly questionnaires assessing depressive symptoms and trait positive and negative affect across 12 months. Parents reported on depressive symptoms and anhedonia at baseline and 12-months. Results showed that parental anhedonia negatively related to parental daily-life enhancing, and youths' perceptions of their parents' enhancing and dampening reciprocally related to youth emotional development across one year, with downstream implications for parents' own symptoms of depression.

A longitudinal study of interprofessional education experiences among health professional graduates.

Effective teamwork and collaboration among health professionals is a well-recognized strategy toward enhancing patient outcomes. However, there is a lack of understanding on how to best prepare health professionals for collaborative practice. The aim of this research is to gain a better understanding of how graduates of five health professions (dentistry, medicine, nursing, pharmacy, physiotherapy) perceive and experience interprofessional education for collaborative practice (IPECP) throughout their health professions journey, with a focus on transition to practice. This longitudinal study employed an interpretive, narrative methodology to understand interprofessional identity development of 24 individuals who had recently graduated from a health professions program (dentistry, medicine, nursing, pharmacy, physiotherapy) at a Canadian university. Participant experiences were analyzed using narrative analysis. Participants' narratives provided insight into the context, factors and curricular experiences needed for interprofessional identity development and preparedness for collaborative practice. Participants identified the importance of socialization and connection with others, collaborative role models and exposure to collaborative experiences and settings for interprofessional practice. Participants expressed some dissatisfaction with their earliest IPECP experiences and most valued their exposure to 'real-life' practice examples and clinical scenarios. Participants desired more authentic experiences of interprofessional collaboration during their programs. Improving health professionals' interprofessional socialization and collaborative experiences within IPECP is critical to improving patient outcomes. Study findings can inform future curricula and IPECP strategies that create conditions to enhance collaborative practice and ensure the preparedness of a future health workforce with a strong collaborative identity.

Parenting by lying and children's lying to parents: The moderating role of children's beliefs.

How are children socialized about lying? One way is parental modeling of lying given that parents tell various lies to their children for parenting purposes, which is a practice known as parenting by lying. Importantly, how children perceive and interpret the lying behavior around them may be crucial to how they then learn to lie. Yet, we do not know how children's perceptions of different types of parental lies drive this socialization. In a comprehensive birth cohort of parent-child dyads (N = 564; children aged 11 and 12 years) in Singapore, we collected multi-informant reports of instrumental lies (parental lies told for child compliance) and white lies (parental lies told to instill positive emotions), children's belief in parental lies, and children's lying to parents. We found greater consistency in parent and child reports of instrumental lies than of white lies and that children reported greater belief in instrumental lies than in white lies. Children's reported exposure to instrumental lies was associated with greater lying to parents. However, for white lies this relationship was evident only when children had moderate to low beliefs in parental lies. Examining the interplay between parental lies and children's beliefs in those lies, the current study illuminates the potential pathways to children's lying behaviors.

All together now: Assessing variation in maternal and nonmaternal handling of wild Colobus vellerosus infants.

Primatologists have a long-standing interest in the study of maternal care and nonmaternal handling (NH) of infants stemming from recognition that early social relationships can have enduring consequences. Though maternal care and NH often include expression of similar behaviors, they are regularly studied in isolation from each other with nonoverlapping terminology, thereby overlooking possible interplay between them and obfuscating potential developmental ramifications that ensue from trade-offs made between maternal (MH) and NH during infancy. To that end, identifying how MH and NH patterns interact and contribute to the total handling (TH) infants receive is a critical first step. We present durational handling data collected from 25 wild Colobus vellerosus infants from 2016 to 2017 and assess the relationships between TH, MH, and NH. Patterns of social affiliation are shaped in part by surrounding context, and therefore, we also assess whether NH and TH differ in their responsivity to various infant and social group characteristics. Ninety-four percent of observed handling was MH, while just 5.5% was NH. Young infants who received more MH (excluding nursing) also received more NH; there was no relationship between the two in older infants. Infants in larger groups participated in more handling of all types. Additionally, NH time was associated with infant sex and group stability. Non-nursing TH time was associated with group stability and infant cohort size. Though NH variation likely confers social-networking advantage, in this population NH is not a major contributor to TH and would not effectively replace reduced MH. The positive association between MH and NH during early infancy suggests that colobus mothers may play a mediating role in shaping infant socialization. This is a first step in elucidating how different forms of handling relate to one another in wild primates and in identifying the impact of handling on infant socialization.

Intersecting perspectives: Advocating for sustainable family meals across generations.

Adolescents in Germany eat fewer animal products than their parents, often for sustainability reasons. We investigated how adolescents differ from their parents' generation in sustainability food-choice motives, consumption of animal products, and corresponding behaviors such as advocating for and influencing decisions towards more sustainable family meals. In an online questionnaire, an educationally diverse sample of 500 adolescents (M = 17.9 years, range = 15-20) and 500 adults of their parents' generation (M = 52.2 years, range = 45-60) reported food-choice motives, their own and their family's diet style, how they advocate for sustainable food decisions at family meals (e.g., less meat), and how they influence different steps in family meal planning (e.g., grocery shopping). The two generations did not differ in sustainable food motives and mean consumption frequency of meat and animal products, but adolescents reported three times more often than their parents' generation to never eat meat. At shared family meals they advocated for eating plant-based substitutes (d = 0.27, p < 0.001) and other animal products (ß = -0.15, p = 0.02) more often than their parents' generation, but not for eating less meat. Adolescents advocated more frequently for sustainable food decisions at shared meals the more important sustainability motives were to them (ß = 0.53, p < 0.001), and the less meat (ß = -0.35, p < 0.001) and fewer other animal products (ß = -0.11, p = 0.015) they consumed. Adolescents motivated towards sustainability have the potential to impact the family's dietary choices through reverse socialization processes. These findings challenge current theories that suggest only parents influence their children, neglecting the role of adolescents as potential agents of change for improved family and planetary health.

Shaping a moral body in family dinner talk: Children's socialization to good manners concerning bodily conduct.

The family meal has been extensively investigated as a site for children's acquisition of eating-related behaviors and attitudes, as well as culture-specific rules and assumptions. However, little is known about children's socialization to a constitutive dimension of commensality and even social life: good manners concerning bodily conduct. Drawing on 20th century scholarship on body governmentality and good manners, and building on recent studies on family meal as a socialization site, the article sheds light on this overlooked dimension of family commensality. Based on a corpus of more than 20 h of videorecorded family dinner interactions collected in Italy, and using discourse analysis, the article shows that family mealtime constitutes a relevant arena where parents control their children's conduct through the micro-politics of good manners. By participating in mealtime interactions, children witness and have the chance to acquire the specific cultural principles governing bodily conduct at the table, such as "sitting properly", "eating with cutlery", and "chewing with mouth closed". Yet, they are also socialized to a foundational principle of human sociality: one's own behavior must be self-monitored according to the perspective of the generalized Other. Noticing that forms and contents of contemporary family mealtime talk about good manners are surprisingly similar to those described by Elias in his seminal work on the social history of good manners, the article documents that mealtime still constitutes a privileged cultural site where children are multimodally introduced to morality concerning not only specific table manners, but also more general and overarching assumptions, namely the conception of the body as an entity that should be (self)monitored and shaped according to moral standards.

College roommates have a modest but significant influence on each other's political ideology.

Does college change students' political preferences? While existing research has documented associations between college education and political views, it remains unclear whether these associations reflect a causal relationship. We address this gap in previous research by analyzing a quasi-experiment in which university students are assigned to live together as roommates. While we find little evidence that college students as a whole become more liberal over time, we do find strong evidence of peer effects, in which students' political views become more in line with the views of their roommates over time. This effect is strongest for conservative students. These findings shed light on the role of higher education in an era of political polarization.

Conversations about race in Black and White US families: Before and after George Floyd's death.

Research has shown that Black parents are more likely than White parents to have conversations about race with their children, but few studies have directly compared the frequency and content of these conversations and how they change in response to national events. Here we examine such conversations in the United States before and after the killing of George Floyd. Black parents had conversations more often than White parents, and they had more frequent conversations post-Floyd. White parents remained mostly unchanged and, if anything, were less likely to talk about being White and more likely to send colorblind messages. Black parents were also more worried than White parents-both that their children would experience racial bias and that their children would perpetrate racial bias, a finding that held both pre- and post-Floyd. Thus, even in the midst of a national moment on race, White parents remained relatively silent and unconcerned about the topic.

The unintended consequences of US immigration enforcement policies.

US immigration enforcement policy seeks to change the behaviors and views of not only individuals in the United States but also those of prospective migrants outside the United States. Yet we still know relatively little about the behavioral and attitudinal effects of US enforcement policy on the population abroad. This study uses a randomized experiment embedded in a nationally representative survey that was administered in El Salvador, Guatemala, Honduras, and Mexico to analyze the effects of US deterrence policies on individuals' migration intentions and their attitudes toward the US immigration system. The two policies that the current study examines are immigration detention and nonjudicial removals. The survey results provide no evidence that a heightened awareness of these US immigration enforcement policies affects individuals' intentions to migrate to the United States. But heightened awareness about the widespread use of immigration detention in the United States does negatively impact individuals' assessments about the procedural and outcome fairness of the US immigration system. These findings suggest that immigration detention may foster delegitimating beliefs about the US legal system without producing the intended deterrent effect.

Proactive coping with discrimination: A mediator between ethnic-racial socialization and Latinx youth's internalizing symptoms.

There is a dearth of knowledge in the coping literature on how minoritized youth cope with racism-related stressors and the predictors of effective coping responses. This two-wave study examined the direct and indirect effects of ethnic-racial socialization on depressive and anxiety symptoms via proactive coping with discrimination in a community sample of 135 Latinx adolescents (Mage = 16, SD = 1.27; 59% female). Results indicate that cultural socialization was related to higher use of proactive coping with discrimination 6 months later, which in turn, was related to fewer depressive and anxiety symptoms. There were no direct or indirect effects between preparation for bias and mental health outcomes.

Ethnic-racial discrimination and socialization: Short-term longitudinal effects on Black and Latinx young adults' ethnic-racial identity.

Short-term longitudinal data were used to examine how racial discrimination, cultural socialization (CS), and preparation for bias (PB) related to Black and Latinx young adults' public and private regard. Black (n = 90) and Latinx (n = 54) young adults (Mage = 20 years) were assessed at two time points, 6 weeks apart. Racial discrimination predicted lower levels of public regard 6 week later; whereas PB predicted greater levels of private regard. CS moderated the relations between racial discrimination and private regard suggesting that at low levels of CS, discrimination related to lower private regard 6 weeks later. Findings demonstrate the short-term effects of racial discrimination and suggest that ethnic-racial socialization is a salient cultural resource for young adults.

Directionality explored: Black Adolescents' awareness of systemic racism and race-based experiences.

Increases in conversations about race and racial discrimination experiences during adolescence make this a critical developmental period to investigate adolescents' awareness of racism. We examined bidirectional associations between race-based experiences and awareness of systemic racism-operationalized as understanding systemic causes of racial disparities in education. Adolescents who self-identified as African American/Black were surveyed in Grade 6 (n = 317; Mage = 11.12; 48% girls) and Grade 8 (n = 247; Mage = 13.15; 56% girls). Cross-lagged panel analyses revealed that racial barrier messages, but not racial discrimination experiences, in Grade 6 positively predicted awareness of systemic racism in Grade 8. Adolescents' awareness of systemic racism in Grade 6 did not predict racial socialization or racial discrimination experiences in Grade 8.