Comprehensive Notes on Adolescent Development: Friendships, Schools, and Wellbeing, and Resilience
Intimacy and Friendship (04/07)
Shifts in Social Balance during Adolescence * Time Allocation Changes: During the transition into adolescence, there is a marked shift in how time is spent within different relationship spheres: * Time spent with family decreases significantly. * Time spent with same-sex friends remains stable. * Time spent with other-sex friends increases. * Preference Shifts: Adolescents generally prefer the company of same-sex friends over family members. As they transition into emerging adulthood, romantic partners begin to take priority in both time preference and the depth of topics discussed. * Cultural Contexts: * Developed Countries: Friends constitute the primary social world. Adolescents are more likely to discuss personal topics with friends and maintain online social contact with peers. * Developing Countries (e.g., India, Indonesia): Adolescents continue to spend more time with family than their counterparts in Western countries. * Gender Differences: Boys tend to be more involved with large peer groups, while girls remain more connected to adult women.
Friends as Sources of Intense Emotion * Emotional Mirroring: Friendships provide a space for emotional reflection and the freedom to express oneself. * Experience Sampling Method (ESM) Data: Research indicates that the happiest moments for teenagers occur when they are with their friends. * Emotional Vulnerability: Friendships carry the risk of vulnerability. Lying is common and is strongly linked to friendship dissolutions. * Stability: Approximately half () of teen friendships dissolve within a single year.
The Developmental Shift in Intimacy Definitions * Childhood Friendships: Defined by sharing, helping, and participation in common activities. * Adolescent Friendships: Retain childhood features but add self-disclosure, shared values and attitudes, and a focus on loyalty and trust. * Harry Stack Sullivan’s Theory: Sullivan posited that intimacy needs intensify in early adolescence, find fulfillment first in friendships around age . This is driven by a new capacity for empathy and perspective-taking, providing honest feedback and fostering trust.
Why Intimacy Matters: Catalysts for Development * Cognitive Development: The shift to abstract thinking allows adolescents to conceptualize complex ideas like loyalty, trust, and affection. Improved social cognition allows awareness of hierarchies, rivalries, and alliances. * Sexual Maturity: Puberty introduces personal changes (body changes, sexuality, first romances) that adolescents often feel are too personal to share with parents, making friends the primary confidants. * Gender Socialization: * Girls: Encouraged to express feelings, leading to more overtly intimate friendships. * Boys: Sharing feelings may be viewed as unmasculine, leading to different pathways toward closeness.
Display and Quality of Intimacy * Adolescents possess intimate knowledge of their friends, such as their worries and sources of pride. * Upward Spiral of Quality: High friendship quality leads to better social competence, which generates more positive affect, resulting in even higher friendship quality. This pattern holds across various ethnic groups. * Interpersonal Behaviors: Adolescent friends show more caring, concern, and generosity compared to classmates. They focus on providing support rather than mere distraction.
Conflict and Co-rumination * Conflict Resolution: Shifts toward negotiation and disengagement. Conflicts with close friends are more emotional but more likely to be repaired. Patterns formed with parents often mirror those with friends and predict later romantic conflict resolution. * Co-rumination: This refers to excessively talking with a friend about problems, rehashing, and dwelling on them without resolution. * The Upside: It brings friends closer together. * The Downside: It increases depression and anxiety, particularly for girls, as these emotions can become ‘contagious’ between friends.
From Friendship to Romance * The need for intimacy develops before the development of romantic or sexual interest. * Key Transition: Moving from nonromantic to romantic intimacy. * Predictive Validity: The quality of same-sex friendships predicts the quality of later romantic relationships, but the reverse does not hold. * Platonic Relationships: Nonsexual relationships with individuals who might otherwise be viewed as romantic partners.
Friend Selection and Peer Influence * Factors of Choice: Age, gender, educational orientation, media/leisure preferences, risk behavior, and ethnicity. * Ethnic Segregation: Groups become more ethnically segregated during adolescence. However, cross-ethnic friendships are associated with decreased prejudice, lower peer rejection, and buffers against negative emotions. * Two Mechanisms of Influence: 1. Peer Pressure: Friends actively pushing each other toward risky choices. 2. Selective Association: Teenagers seek out friends who already exhibit similar behaviors. * Empirical Note: When asked directly, peer pressure ranks low as an influence factor; friends frequently discourage risky behavior.
Berndt's Four Types of Support 1. Informational: Advice and guidance. 2. Instrumental: Practical help. 3. Companionship: Being there or spending time. 4. Esteem: Validation and encouragement.
Peers and Popularity (04/09)
Social Structures: Cliques vs. Crowds * Cliques: Small groups of to individuals. This is the primary social context for daily interaction. * Crowds: Larger groups based on reputation and stereotype rather than actual interaction. They serve to locate adolescents within the school social structure.
Changes Across Adolescence * Early Adolescence: Characterized by strict sex segregation. Membership is shaped by school orientation, teen culture involvement, and risk behavior. * Middle Adolescence: Mixed-sex and mixed-age cliques emerge as romantic interests develop. * Late Adolescence: Couples often split off from larger groups.
Group Dynamics and Aggression * Antagonistic Interactions: Used to establish dominance hierarchies, reinforce conformity, and mark group boundaries. * Relational Aggression: Harming others by manipulating relationships (e.g., rumors, withdrawing friendship). * Trends: Peaks in early adolescence and then declines. * Social Link: Associated with high popularity as it requires similar social skills (reading people, managing impressions). * Outcomes: Negative effects for targets (loneliness) and aggressors (depression, eating disorders). While first identified in girls, boys also utilize relational aggression.
Sociometric vs. Perceived Popularity * Sociometric Popularity: Measures how well-liked an individual is. It is stable and driven by social skills, friendliness, humor, kindness, intelligence, and physical attractiveness. * Perceived Popularity: Measures status or prestige. It is highly variable and can be maintained through aggression, exclusion, or manipulation. * Aggression Subtypes: * Proactive Aggression: Used to maintain status; leads to higher status. * Reactive Aggression: Impulsive; leads to peer rejection.
Pseudomaturity and Outcomes * Allen et al. (2014): Pseudomature behavior (e.g., minor delinquency, precocious romance) is linked to higher status in early adolescence but is short-term. In young adulthood, it is linked to behavioral and relationship problems.
Peer Rejection Profiles 1. Rejected-Aggressive: Disliked for being disruptive and quarrelsome. Risk: conduct problems, school dropout. 2. Neglected-Withdrawn: Barely noticed, shy, and anxious. Risk: targets for bullying, depression, low self-esteem. 3. Aggressive + Withdrawn: Combined profile of both groups. These individuals face the greatest risk for severe adjustment difficulties. * Self-Perpetuating Loop: Rejection leads to fewer social skill opportunities, leading to further rejection and hostile attribution bias.
Bullying * Three Components: Aggression, Repetition, and Power Imbalance. * Trends: Peaks in early adolescence. Higher in environments with high income inequality. * Participants: * Victims: Withdrawn teens, low-status peers, and sexual minority youth (often persistently targeted). * Bullies: High-status (to maintain status), middle-status (to avoid becoming victims), and low-status (targeting others even lower). * Bully-Victims: of bullies are also victims; they face the worst adjustment outcomes. * Interventions: Supportive friends buffer harm. Antibulllying programs are effective in elementary school but can backfire in high school.
School (04/14)
Global School Enrollment * Developed Countries: >90\% * Developing Countries: >60\% (Asia, Latin America, Africa). * Sub-Saharan Africa: <40\% enrollment, the lowest globally. * Gender Gaps: Persist in developing nations where boys are more likely to attend secondary school.
Historical and Cultural Shifts * 19th Century High School: Served elite families; curriculum focused on liberal arts (Latin, Greek, History) with no practical or vocational aims. * Modern Comprehensive High School: Serves mass populations; includes college prep, vocational training, and general education (art, health, PE). * Cultural Values: * America: Values "well-roundedness"; hobbies and sports are prioritized alongside academics. * Asia (China, India): Academic performance is prioritized; students spend hours on homework daily.
School and Classroom Climate * School Size: * Large: More variety in courses but higher student anonymity and lower achievement. * Small: Stronger community and higher participation in leadership and extracurriculars. * Morningness vs. Eveningness: Puberty causes a hormonal shift toward eveningness (circadian rhythm shift). This shift reverses around age to . Later school start times improve sleep and achievement. * Michael Rutter’s Good School Climate: Supportive, involved teachers; consistent discipline; high expectations for academic and behavioral performance. Responsive and demanding environments foster better attendance and lower delinquency.
School Transitions and Tracking * Tracking: Sorting students by ability level. * Pros: Tailored instruction, faster pace for advanced students. * Cons: Low-track students receive lower-quality instruction; can lead to social polarization and racial/SES bias. * Teacher Quality: Secondary teachers often feel less confident in their abilities and are more likely to view student intelligence as fixed compared to elementary teachers. * The Stage-Environment Fit (Eccles & Steinberg): Explains the sharp drop in motivation during school transitions due to moving into environments that don't match developmental needs.
Academic Achievement (04/16)
Personal Factors in Achievement * Mastery Goals (Intrinsic): Driven by the pleasure of learning and understanding. Predicts better overall performance. * Performance Goals (Extrinsic): Driven by grades and rewards. * Barriers to Achievement: Fear of failure (undermines performance), Social pressure (avoiding looking "too academic"), Fixed Mindsets, and Home Environment (lack of support). * Yerkes-Dodson Law: A curvilinear relationship where a moderate amount of anxiety improves concentration, but too much stress or too little arousal leads to poor performance. * Self-Handicapping: Deliberately creating excuses for failure (Boys blame lack of effort; Girls blame emotional problems).
Achievement Attributions * Internal: Ability ("I'm good/bad") or Effort ("I studied/didn't study"). * External: Task Difficulty ("The test was hard") or Luck. * Learned Helplessness: The belief that one cannot influence outcomes through effort.
Environmental and Structural Factors * Stereotype Threat: Risk of confirming negative stereotypes about one's group, which hinders performance. Conversely, positive stereotypes (e.g., Asian students) can boost performance. * Parenting Styles: Authoritative parenting yields the best outcomes; Neglectful is the worst. * The "Big Fish in a Little Pond" Effect: Top students in low-ranked schools have higher academic self-concepts than equally talented students in high-achieving schools. * SES: One of the strongest predictors of achievement, correlating with IQ resources, nutrition, and cultural capital.
Work (04/21)
History and Trends * Pre-1925: Most teens worked full-time. * 1977: Peak of adolescent employment where >75\% of seniors worked. * 2012: Declined to due to increased academic demands. * Job Types: Early adolescence involves informal jobs (babysitting); high school involves formal, repetitive service/retail work ( to hours per week).
Employment Impacts * Common Belief: Work teaches responsibility. Research Reality: Little evidence for responsibility; high rates of on-the-job misconduct. One benefit is money management skills. * Intensive Employment (Long Hours): Linked to school absence, lower grades, dropout risk, and increased substance use (More money + more stress). * Protective Factor: Positive relationships with adult supervisors can buffer stress from home.
Occupational Development (Donald Super) 1. Crystallization (): Exploring interests. 2. Specification (): Narrowing to an occupation. 3. Implementation (): Entering the workforce. 4. Stabilization (): Establishing the career. 5. Consolidation (): Advancement.
Training and Leisure * Vocational Training: US Job Corps (residential, high permeability/low transparency) vs. Western Europe Apprenticeships ( to years, high transparency/low permeability). * Structured Leisure: Organized, voluntary activities (sports, music) linked to high concentration, motivation, and positive development. * Unstructured Leisure: Unsupervised socializing. Routine Activity Theory identifies the "peak risk window" as weekday afternoons ( to PM).
Media Use and Influence (04/23)
Theoretical Frameworks * Cultivation Theory: Media exposure shapes a "Mean World Syndrome." * Social Learning Theory: Imitation of modeled behaviors. * Uses and Gratifications Approach: Adolescents are active consumers making choices based on developmental needs. * Media Practice Model: Identity drives a feedback loop of selection and interpretation.
Socialization and Content * Super Peer: Media acts as an influential source (e.g., for sexual information) while being market-driven rather than value-driven. * Violence: Evidence of media violence causing adolescent aggression is mixed and weak compared to children. Video games may peak aggression in a small subgroup around age . * Tobacco/Vaping: Juul and other companies have targeted youth; exposure reduces perceived harm.
Social Media and Wellbeing * Effect Size: Orben & Przybylski () found digital tech explains at most of the variation in wellbeing (comparable to eating potatoes). * Individual Variation: Beyens et al. () found of teens saw no effect, saw negative effects, and saw positive effects. The type of person matters more than the "active vs. passive" use distinction.
Problems and Resilience (04/28)
Principles of Problem Behavior * Most problems are transitory and do not persist into adulthood. * Problems are not caused by the "raging hormones" of adolescence. * Externalizing (Boys): Undercontrolled/impulsive (e.g., delinquency). * Internalizing (Girls): Overcontrolled/withdrawn (e.g., depression, anxiety).
Delinquency and Substance Use * Life-Course-Persistent Delinquents (LCPDs): Neuropsychological deficits; commit of offenses. * Adolescence-Limited Delinquents (ALDs): Peer-driven; end offending by mid-s. * Problem Behavior Syndrome: Underlying trait of unconventionality explains co-occurrence of various externalizing problems.
Internalizing Disorders * Major Depressive Disorder (MDD): or more symptoms for weeks. Approximately prevalence. * Diathesis-Stress Model: Depression = Predisposition (biological/cognitive) + Environmental Trigger (stressor like a breakup). * Co-morbidity: of depressed adolescents also have severe anxiety. This is linked to the shared trait of negative emotionality.
Resilience and Turning Points * Resilience: Good outcomes despite threats (Ann Masten's "ordinary magic"). * Protective Factors: Internal (intelligence), External (one caring adult), and Coping strategies. * Emerging Adulthood: Provides a critical window for resilience through turning points (college, military) where individuals can leave unhealthy environments and apply planful competence.