Currently, Latino youth are reporting greater academic achievement compared to prior decades; however, they continue to drop out of high school at higher rates compared to their peers. Given that Latino youth will soon take on adult roles in society, it is important to explore resources that can help them reach their academic potential, while also considering ethnic-racial discrimination as a barrier. Prior work has highlighted the benefits that family ethnic socialization experiences (FES), and having an informed understanding of ones’ ethnic-racial identity (ERI achievement) can provide for Latino youths’ academic adjustment. However, additional work is needed to examine contextual factors that may inform Latino parents’ FES engagement. Furthermore, limited work has explored the variability in how Latino youth experience these and other cultural resources, and in turn, how they inform youths’ academic adjustment. In Study 1, I explored whether Mexican-origin mothers’ and fathers’ workplace discrimination informed youths’ academic adjustment via parent-adolescent relationship quality, mothers’ and fathers’ FES, and youths’ ERI. Findings suggest that mothers and fathers who experience more frequent workplace discrimination engage in more FES, and mothers’ (but not fathers’) FES was associated with youths’ higher ERI achievement. Furthermore, greater mother-adolescent conflict was associated with lower academic adjustment. Overall, findings have implications for understanding how youths’ developmental competencies are informed by their familial relationships, and their parents’ experiences with workplace discrimination. In Study 2, I utilized person-centered analyses to examine whether distinct typologies emerged based on Latino youths’ experiences with FES, ERI, and emotional support from Latino and non-Latino peers. Findings revealed three profiles of cultural resources. Furthermore, youth who reported the highest levels of all cultural resources demonstrated better academic adjustment compared to youth with low to moderate levels of resources, but not compared to youth with more moderate levels of resources. Finally, profile membership moderated the association between youths’ ethnic-racial discrimination and academic adjustment; however, the profile that provided protective effects varied by academic adjustment indicator. Overall, findings provide a nuanced understanding regarding the promotive and protective effects that cultural resource profiles can have for youths’ academic adjustment.

Latinxs are one of the largest ethnic-racial minoritized groups in the U.S., with children and youth serving as the driving force of the population’s growth. Latinx children and youth living in the U.S. navigate their development within sociocultural contexts that present unique stressors (e.g., discrimination) and assets (e.g., biculturalism) that shape their development. Thus, when studying Latinx youth and families, it is critical to consider important individual, developmental, and contextual factors that enhance Latinx youth development. This includes studying culture-specific family processes (e.g., familism) as well as more universal general parent-child processes that are developmentally salient (e.g., parent-child conflict regarding everyday issues). Therefore, my two-study dissertation focuses on the integration of cultural and developmentally relevant factors in studying parent-child relationships among Latinx families. In Study 1, I use longitudinal data from 246 Mexican-origin families to examine developmental trajectories of parent-child conflict regarding everyday issues across 12 to 22 years of age. In charting parent-youth conflict trajectories, I examine how youth and parent familism values may serve as important cultural factors that are associated with variation in parent-youth conflict. In Study 2, I use a person-centered approach to examine constellations of parental warmth, parent-child conflict, and parental ethnic socialization among Latinx families with children in middle childhood and explore how different patterns of parent-child relationships emerge and how these patterns relate to child adjustment (i.e., academic competence, peer competence, and depressive symptoms). Guided by a family systems theory, both studies consider important nuance in parent-child dyads by examining gender dynamics in mother-child and father-child relationships. Together, the studies make an important contribution to the understanding of culturally and developmentally salient processes of parent-child relationships in Latinx families and provide research and practice implications for enhancing the lives of Latinx youth and families.

Both theoretical and empirical research has recognized the importance of contextual factors for Mexican-origin youths' educational outcomes. The roles of parents, teachers, and peers have been predictive of Mexican-origin youths' academic achievement, educational expectations, and decision to enroll in postsecondary education. However, few studies have examined the interdependence among sociocultural context characteristics in predicting Mexican-origin youths' educational outcomes. In this dissertation, two studies address this limitation by using a person-centered analytical approach. The first study identified profiles of Mexican-origin youth using culturally relevant family characteristics. The second study identified profiles of Mexican-origin youth using culturally relevant school characteristics. The links between profiles and youths' academic achievement, educational expectations, and postsecondary enrollment were examined in both studies. Overall, this dissertation contributes to the growing body of literature that aims to understand risk and protective processes related to Mexican-origin youths' academic achievement, educational expectations, and postsecondary enrollment.

Segregation into own-gender peer groups, a common developmental pattern, has many potentially negative short- and long-term consequences. Understanding the social cognitive processes underlying intergroup processes may lead to a better understanding of, and a chance to improve, intergroup relations between boys and girls; however, until recently gender-typed cognitions have not received a lot of attention. Therefore, in two complementary studies, this dissertation examines developmental patterns and predictors of a particular type of social cognition, gender-based relationship efficacy (GBRE). The first study examines mean-level and interindividual stability patterns of GBRE longitudinally in two developmental periods: childhood and pre-adolescence. Specifically, the first study examined children’s and pre-adolescents’ GBRE toward own- (GBRE-Own) and other-gender (GBRE-Other) peers over a one-year period. Using a four factor repeated measures analysis of variance, the results indicated that GBRE-Own is significantly higher than GBRE-Other across both cohorts. GBRE-Other, however, increased from childhood to pre-adolescence. Stability and cross-lag effects were examined using a multi-group panel analysis and revealed that GBRE-Own and GBRE-Other were stable. Additionally, high levels of GBRE-Own led to lower levels of GBRE-Other one year later, but high levels of GBRE-Other led to higher levels of GBRE-Own. Implications for understanding segregation processes and suggestions for future research are discussed.

The second study examined potential affective/cognitive, behavioral, and contextual predictors of GBRE-Other in pre-adolescence. Several hypotheses were tested using panel models and regression analyses, but there was limited support. Results indicated that GBRE-Other predicted more positive attitudes toward other-gender peers and higher preferences for other-gender peer interaction and that, for boys, anxious attitudes toward other-gender peers negatively predicted GBRE-Other and, for girls, parental attitudes toward their children’s other-gender friendships negatively predicted GBRE-Other. The lack of significant findings in the second study should be interpreted cautiously. In general, GBRE is an important construct and more research is needed to fully understand the developmental progression and implications.

In two complementary studies, I used an innovative ecological momentary assessment (EMA) design to examine associations between adolescents’ daily interactions with parents and peers and their mood states during two developmentally normative, yet demanding contexts: romantic relationships and the transition to college. The first study examined how adolescents’ daily romantic relationship experiences (e.g., romantic emotionality, conflict, affiliation) were related to negative affective states. Eighty-eight adolescent romantic couples (Mage = 16.74 , SD = 0.96; 44% Latina/o, 42% White) completed short electronic surveys twice-weekly for 12 weeks, which assessed their affective states and their relationship processes (24 total possible surveys). Results indicated that greater conflict and negative romantic emotionality predicted greater within-person fluctuations in same-day negative affect. Greater daily affiliation with a romantic partner predicted slightly lower levels of same-day negative affect; positive romantic emotionality did not significantly predict negative affect.

Study 2 examined first-year college students’ growth trajectories in positive and negative affect across the transition to college (i.e., spanning the entire first semester), predicted said trajectories and daily affective states. Participants were 146 first-year college students from a large southwestern university entering their first semester of college (Mage = 17.8, SD = 0.5). Electronic diary surveys were administered to students twice weekly between July and December of 2014, so as to span the transition to college and the entire first semester, and assessed daily affective states and interpersonal interactions. Results indicated that students decreased in their positive affect gradually across the first semester, but remained stable in their negative affect. Significant variability emerged around these average trends, and was predicted by indices of conflict and involvement with parents and friends. Generally, greater involvement with friends and parents was associated with greater positive and less negative affect, whereas greater conflict with these important social groups predicted greater negative affect. Together, these studies underscore the importance of positive attachments during developmentally-challenging contexts experienced in adolescence.

Aggression is inherently social. Evolutionary theories, for instance, suggest that the peer group within which an aggressor is embedded is of central importance to the use of aggression. However, there is disagreement in the field with regard to understanding precisely how aggression and peer relationships should relate. As such, in a series of three empirical studies, my dissertation takes a relational approach and addresses some of the inconsistencies present in the extant literature. In Study 1, I examined how qualities of youth's close friendships contributed to the use of aggression, both concurrently and over time. I found that youth with large friendship networks were more aggressive, whereas those with highly interconnected friendship network decreased in aggression over time. Using a dyadic mediation model, the second study considered the precursors to aggressors' friendships with peers. Specifically, I explored aggressive youth's interactions with unfamiliar peers and assessed how the interactions that unfold affected the quality of the relationship. I found that dyads who were highly discrepant in their tendencies toward aggression failed to collaborate well with one another, and this led to less positive perceptions of one another. Whereas the first two studies concerned aggressors' relationships with their friends (Study 1) and acquaintances (Study 2), Study 3 focused on a different type of relationship – the relationship between an aggressor and his or her victim(s). In the third study, I explored how power dynamics operate within an aggressor-victim dyad and assessed whether differences in the balance of power between the aggressor and victim affected the strength of their relationship. I found that more aggressor-victim dyads were characterized by a relative balance than imbalance in power, and that power balanced dyads had stronger and more sustained aggressor-victim relationships. By taking a relational approach to the study of aggression, this dissertation has advanced extant work in the field. That is, these findings move away from the simplification and aggregation of relational constructs (e.g., relationships, friendships), and instead consider the nuances of specific types of relationships or interactions with specific peers, allowing for a better understanding of the relational nature of aggression.

The goal of this study was to explore the multidimensionality of gender typicality and its relation to preadolescents’ psychological adjustment. With a sample of 378 6th grade students (52% male; M age = 11.44, SD = .56; 48% White), I examined how four specific dimensions of gender typicality (behavior, appearance, activities, and peer preference) predict children’s global sense of typicality; whether children’s global sense of gender typicality, behavior, appearance, activities, and peer preference are differentially predictive of self-esteem, social preference, and relationship efficacy; and whether examining typicality of the other gender is important to add to own-gender typicality. Regression analyses indicated that all four specific typicality dimensions contributed to preadolescents’ overall sense of own- and other-gender typicality (except appearance for own-gender typicality). Generally, all domains of gender typicality were related to the four adjustment outcomes. Own-gender typicality related more strongly to self-esteem, social preference, and own-gender relationship efficacy than did other-gender typicality; other-gender typicality was more strongly related to other-gender relationship efficacy. Relations between typicality and adjustment were stronger for gender-based relationship efficacy than for self-esteem or social preference. Although some differences existed, relations between typicality and adjustment were generally similar across typicality domains. Results implicate the need to measure other-gender typicality in addition to own-gender typicality. Additional contributions and suggestions for future research are discussed.

Siblings are a salient part of family life; however, few studies have explored the role of siblings on youths' cultural development and educational expectations. In the current dissertation, two studies address this gap in the literature by using longitudinal data from 246 Mexican-origin sibling pairs and their mothers and fathers. The first study examined how older siblings' cultural orientations and values uniquely contribute to younger siblings' cultural orientations and values from late adolescence to young adulthood, after accounting for mothers' and fathers' cultural orientations and values; further, it was explored the role of sibling modeling and sibling characteristics as moderators of these associations. Findings revealed that older siblings' cultural orientations and values contribute to younger siblings' cultural orientations and values from late adolescence into young adulthood. Specifically, under conditions of high sibling modeling, younger siblings reported higher levels of Anglo orientation and familism values. Whereas, fathers' orientations were positively associated with younger siblings' Anglo and Mexican orientations and mothers' values were predictive of younger siblings' familism values. Together, the findings suggest that siblings and parents play different roles in youths' cultural development.

The second study explored the reciprocal associations between older and younger siblings' educational expectations from early/middle adolescence to middle/late adolescence and from middle/late adolescence to young adulthood. In this study it was tested the moderating role of family immigrant context and sibling characteristics in the association between older and younger siblings' educational expectations. Findings revealed that older siblings' educational expectations at T1 predicted younger siblings' educational expectations at T2. Further, older siblings' educational expectations at T2 continued to influence younger siblings' educational expectations at T3, and younger siblings' educational expectations at T2 also predicted older siblings' educational expectations at T3. Family immigrant context moderated the association from older siblings' educational expectations at T2 to younger siblings' educational expectations at T3, such that the association was significant for immigrant-born families, but not for U.S.-born/Mixed-status families. Our study highlights the value of siblings' roles, particularly in immigrant families, as youth make important decisions about their educational pursuits.

Although aggression is sometimes thought to be maladaptive, evolutionary theories of resource control and dominance posit that aggression may be used to gain and maintain high social prominence within the peer group. The success of using aggression to increase social prominence may depend on the form of aggression used (relational versus physical), the gender of the aggressor, and the prominence of the victim. Thus, the current study examined the associations between aggression and victimization and social prominence. In addition, the current study extended previous research by examining multiple forms of aggression and victimization and conceptualizing and measuring social prominence using social network analysis. Participants were 339 6th grade students from ethnically diverse backgrounds (50.4% girls). Participants completed a peer nomination measure assessing relational and physical aggression and victimization. They also nominated friends within their grade, which were used to calculate three indices of social prominence, using social network analysis. As expected, results indicated that relational aggression was associated with higher social prominence, particularly for girls, whereas physical aggression was less robustly associated with social prominence. Results for victimization were less clear, but suggested that, for girls, those at mid-levels of social prominence were most highly victimized. For boys, results indicated that those both high and low in prominence were most highly relationally victimized, and those at mid-levels of prominence were most highly physically victimized. These findings help inform intervention work focused on decreasing overall levels of aggressive behavior.

The present study was designed to extend previous research on early adolescents' involvement in electronic aggression and victimization. A new measure for electronic victimization and aggression was created for this study in order to better assess this type of peer harassment in early adolescence. The first goal of the study was to describe young adolescents' involvement in electronic aggression and victimization by exploring the links between electronic victimization and aggression and (a) youth demographic characteristics (e.g., gender, ethnicity), (b) involvement in traditional forms of aggression and victimization, and (c) gender of the aggression/victimization context (i.e., same-sex aggressor -victim versus other-sex aggressor- victim dyad). The second goal was to examine how electronic victimization and aggression were associated with self-esteem and relationship efficacy. Participants were 826 (49.9% female) 7th and 8th grade students (M age = 12.5 years old; SD = .67). Students were administered surveys during school hours. Results indicated that girls were more likely to be involved in both electronic aggression and victimization than boys. Further, girls were more likely to be both electronic aggressors and victims simultaneously than boys. Finally, those involved with electronic aggression reported higher levels of relationship efficacy than their peers and involvement as an aggressor/victim was associated with lower self-esteem than any other involvement category.