Biological sex refers to physical characteristics such as chromosomes, hormones, and reproductive anatomy. Gender refers to the socially constructed roles, behaviors, and expectations a culture associates with being male, female, or another gender identity. In development, sex may relate to some biological influences, while gender strongly shapes socialization through cultural norms, expectations, and experiences. Biological and gender diversity exist, but the key idea for this topic is that biological sex and gender roles can influence how people are socialized and how development unfolds.


Biological Foundations
Biology plays a real but limited role in shaping developmental pathways. There is considerable overlap between sexes and natural diversity within them.
- Early development research challenges many assumed differences:
- Motor, cognitive, and language milestones show minimal sex-based differences
- Brain plasticity shows that experience and environment influence development, alongside biological factors
- Play preferences correlate strongly with exposure and encouragement
- Adult expectations and interpretations often amplify small differences
- The relationship between biology and behavior is bidirectional:
- Neuroplasticity means experiences reshape brain development
- Hormone levels respond to social experiences and environments
- Gene expression is influenced by environmental factors
- Physical activity and nutrition affect development regardless of sex
Gender Socialization as a Social Construction
Sex and gender influence socialization because children are often treated differently based on perceived sex and gender. Parents, peers, teachers, and media may encourage different behaviors, interests, and emotional expression in boys and girls. These social expectations can shape identity development, self-concept, academic interests, and social behavior across childhood and adolescence.
Children actively participate in their gender development, sometimes conforming to and sometimes resisting cultural expectations depending on their environment.
The socialization process operates through:
- Gendered expectations that begin before birth (gender reveal parties, color-coding)
- Differential treatment that shapes behavior and preferences
- Reinforcement systems that reward conformity and discourage difference
- Representation in media and learning materials that shapes imagination
- Language patterns that frame experiences and possibilities differently
Different cultural and family environments may either reinforce or challenge traditional gender roles.
Research suggests that socialization contributes to many observed gender differences in behavior and interests:
- Gender differences in academic interests and performance are influenced by socialization, expectations, and opportunities
- Leadership behaviors emerge when supported regardless of gender
- Emotional expression capabilities are similar across sexes but are shaped by social expectations
- Career aspirations correlate strongly with exposure to diverse role models
How Sex and Gender Influence Development
Sex and gender can influence multiple aspects of development, including identity, academic interests, emotional expression, peer relationships, and career goals.
- Educational development: Gender expectations can affect subject choice, classroom participation, and confidence in areas such as math or science. Teaching practices can either reinforce or challenge these expectations, and representation in curricula affects how students identify with different subjects.
- Social-emotional development: Boys and girls may be socialized to express emotions differently, influencing coping, relationships, and help-seeking. Emotional literacy and relationship skills are human capacities, but social expectations can channel them in gendered ways.
- Lifespan development: Gender roles can shape career paths, family responsibilities, and health-related behaviors over time. When individuals have flexibility in how they approach these domains, later life satisfaction tends to increase with balanced development across them.
Vocabulary
The following words are mentioned explicitly in the College Board Course and Exam Description for this topic.Term | Definition |
|---|---|
gender | The social and psychological characteristics associated with being male or female, distinct from biological sex. |
gender identity | An individual's personal sense of their own gender, which may or may not align with the sex assigned at birth. |
gender roles | Socially constructed expectations and behaviors associated with being male or female that vary across cultures and historical periods. |
sex | Biological characteristics typically used to classify individuals as male or female at birth. |
sexual orientation | An individual's pattern of emotional, romantic, or sexual attraction to others, including heterosexual, homosexual, and bisexual orientations. |
socialization | The process through which individuals learn and internalize the norms, values, and behaviors of their society, influenced by factors such as sex and gender. |
Frequently Asked Questions
What's the difference between sex and gender?
Sex and sex are biological; gender is psychological and social. Sex refers to physical attributes (chromosomes, hormones, internal and external reproductive anatomy) typically labeled male or female at birth. Gender refers to a person’s internal sense of self (gender identity) and the roles, behaviors, and expectations society assigns (gender roles, gender norms). Someone can be cisgender (gender identity matches their sex assigned at birth) or transgender (it doesn’t); some experience gender dysphoria when that mismatch causes distress. AP-relevant connections: gender socialization (parental modeling, peer influence, media) shapes gender roles; gender schema theory and social learning theory explain how kids learn what’s “appropriate.” Gender stereotypes influence development and behavior across contexts. You should know these terms and how sex vs. gender affects socialization for Topic 3.3 (see the topic study guide: https://library.fiveable.me/ap-psych-new/unit-3/3-gender-and-sexual-orientation/study-guide/hh3cGTl1wLl1EEsA). For more practice, check the Unit 3 resources and 1000+ practice problems (https://library.fiveable.me/ap-psych-new and https://library.fiveable.me/practice/ap-psych-new).
How does gender socialization work and when does it start?
Gender socialization is how people learn the expectations, roles, and behaviors linked to being male, female, or another gender. It starts very early—infants get gendered cues from caregivers (clothing, toys, language) and by about age 2–3 children form a basic gender identity and begin showing sex-typed preferences. Key processes: social learning (parental modeling and reinforcement), peer influence, media, and cultural gender norms and stereotypes. Gender schema theory says kids build mental frameworks (schemas) about “what boys/girls do” and use those to organize info and guide behavior. These forces shape development across the lifespan and interact with identity (cisgender, transgender) and possible distress (gender dysphoria). For AP exam relevance, this maps to LO 3.3.A: describe how sex and gender influence socialization. For a focused review, see the Topic 3.3 study guide (https://library.fiveable.me/ap-psych-new/unit-3/3-gender-and-sexual-orientation/study-guide/hh3cGTl1wLl1EEsA) and practice questions (https://library.fiveable.me/practice/ap-psych-new).
Why do boys and girls get treated differently from birth?
From birth, kids get treated differently mainly because of gender socialization—society’s expectations about gender roles and stereotypes. Parents, caregivers, and media use parental modeling and rewards (praise, toys, clothing) that teach “what boys/girls do,” and kids form gender schemas (mental categories) that guide how they see themselves and others. Peers and teachers reinforce those roles, and social learning (observing and imitating) makes those patterns stick. Biological sex cues (like assigned sex at birth) can trigger these social responses, but social forces shape most day-to-day treatment. This is exactly what Topic 3.3 covers (gender roles, gender identity, gender schema theory, social learning). On the AP exam, be ready to describe how sex and gender influence socialization (LO 3.3.A). For a quick review, see the Topic 3.3 study guide (https://library.fiveable.me/ap-psych-new/unit-3/3-gender-and-sexual-orientation/study-guide/hh3cGTl1wLl1EEsA) and practice questions (https://library.fiveable.me/practice/ap-psych-new).
I'm confused about biological sex vs gender identity - can someone explain?
Biological sex = the physical traits people are born with or develop (chromosomes, genitalia, hormones). It’s often labeled male/female at birth but isn’t strictly binary (intersex exists). Gender identity = a person’s internal sense of who they are (male, female, both, neither, or another identity). If your gender identity matches your sex assigned at birth you’re cisgender; if it doesn’t you might identify as transgender. Gender dysphoria describes clinically significant distress some trans people experience. In AP terms, sex and gender shape gender roles, gender socialization, stereotypes, and schemas (how kids learn “what boys/girls do” via parental modeling and peers)—which is exactly what Learning Objective 3.3.A asks you to describe. For a clear CED-aligned summary and practice, check the Topic 3.3 study guide (https://library.fiveable.me/ap-psych-new/unit-3/3-gender-and-sexual-orientation/study-guide/hh3cGTl1wLl1EEsA) and try related practice problems (https://library.fiveable.me/practice/ap-psych-new).
What are gender roles and how do they affect development?
Gender roles are culturally shaped expectations for how people of different sexes should think, feel, and behave (e.g., “boys don’t cry,” “girls cook”). They’re taught through gender socialization—parents’ modeling, reinforcement, peer influence, media—and explained by social learning theory and gender schema theory (kids form mental templates for “male” and “female” behavior). Those roles shape development by guiding identity formation, career interests, emotional expression, and social opportunities; they can boost belonging when a child’s identity fits the role or harm self-esteem and mental health if roles are restrictive or conflict with gender identity (important for understanding transgender and cisgender experiences, and conditions like gender dysphoria). For AP exam relevance, this maps to LO 3.3.A—know how sex and gender influence socialization and development and be ready to cite theories and examples. For a quick review, check the Topic 3.3 study guide (https://library.fiveable.me/ap-psych-new/unit-3/3-gender-and-sexual-orientation/study-guide/hh3cGTl1wLl1EEsA) and practice questions (https://library.fiveable.me/practice/ap-psych-new).
How does sexual orientation develop during adolescence?
Sexual orientation usually becomes clearer during adolescence as biology, cognition, and social experience interact. Biologically, genetics and prenatal hormones contribute to attraction patterns, but they don’t determine everything. Cognitively, teens develop identity (gender identity vs. gender roles) and use schemas to label feelings; this can lead to exploration and sometimes fluidity in attractions. Social learning (parental modeling, peer influence, cultural gender norms) and minority stress or support affect whether and when teens "come out." Intersectionality matters: race, class, and gender identity (cisgender vs. transgender) shape experiences. Importantly, orientation isn’t a choice and can stabilize over time for many people, though some remain fluid. On the AP exam, connect these ideas to Learning Objective 3.3.A (describe how sex and gender influence socialization and development). For a focused review on keywords like coming out, gender socialization, and gender schema theory, see the Topic 3.3 study guide (https://library.fiveable.me/ap-psych-new/unit-3/3-gender-and-sexual-orientation/study-guide/hh3cGTl1wLl1EEsA). For broader unit review and practice questions, use (https://library.fiveable.me/ap-psych-new/unit-3) and (https://library.fiveable.me/practice/ap-psych-new).
What's the difference between gender identity and sexual orientation?
Gender identity is your internal sense of being male, female, a blend, neither, or another gender (examples: cisgender, transgender). Sexual orientation is who you’re emotionally, romantically, or sexually attracted to (examples: heterosexual, gay/lesbian, bisexual, asexual). They’re separate—a person can be transgender and straight, cisgender and gay, etc. Terms from the CED to know: gender roles, gender socialization, gender schema theory, gender dysphoria, and intersectionality (how gender/sexuality interact with race, class, etc.). For the AP exam, Topic 3.3 (Learning Objective 3.3.A) often asks you to describe how sex and gender influence socialization and development—so be ready to explain differences and give examples (coming out; parental modeling; peer influence). Review the Topic 3.3 study guide on Fiveable (https://library.fiveable.me/ap-psych-new/unit-3/3-gender-and-sexual-orientation/study-guide/hh3cGTl1wLl1EEsA) and practice questions (https://library.fiveable.me/practice/ap-psych-new).
Why do some cultures have different gender expectations than others?
Different cultures have different gender expectations because gender is mostly a social construction shaped by cultural values, institutions, and learning systems—not just biology. Families, schools, media, and peers teach gender roles through parental modeling and social learning (rewarding some behaviors, punishing others). Gender schema theory explains how people internalize cultural “rules” about what’s masculine or feminine and then filter information to fit those schemas. Traditions, religion, economic roles, and power structures create different norms and stereotypes across societies. Intersectionality matters too: race, class, and religion change how gender expectations apply to different people. For AP exam focus, link these ideas to gender socialization, gender identity, gender roles, and peer influence (see Topic 3.3 study guide) (https://library.fiveable.me/ap-psych-new/unit-3/3-gender-and-sexual-orientation/study-guide/hh3cGTl1wLl1EEsA). For more review and practice Qs, check the unit page (https://library.fiveable.me/ap-psych-new/unit-3) and practice problems (https://library.fiveable.me/practice/ap-psych-new).
How do parents and peers influence gender socialization?
Parents and peers shape gender socialization through modeling, reinforcement, and shaping schemas. Parents influence kids by parental modeling (showing gendered behaviors), rewarding or punishing gender-conforming actions (reinforcement), and communicating gender roles and stereotypes—so children learn what’s “appropriate” for their gender. Peers add strong social pressure: kids who follow peer gender norms get acceptance; those who don’t may face exclusion, which reinforces gender-typed behavior. Social learning theory explains the modeling/reward process; gender schema theory explains how kids build mental frameworks that filter experience and guide behavior. For the AP exam, link these processes to learning objective 3.3.A (describe how sex/gender influence socialization) and use terms like gender identity, gender roles, parental modeling, peer influence, and gender norms. Want a quick refresher? Check the Topic 3.3 study guide (https://library.fiveable.me/ap-psych-new/unit-3/3-gender-and-sexual-orientation/study-guide/hh3cGTl1wLl1EEsA) and practice problems (https://library.fiveable.me/practice/ap-psych-new).
What happens when someone's gender identity doesn't match their biological sex?
When someone’s gender identity (their internal sense of being male, female, both, neither, or another gender) doesn’t match their biological sex assigned at birth, they may identify as transgender. Some people experience gender dysphoria—clinically significant distress about that mismatch—but not all transgender people do. Developmentally and socially, this can affect socialization: family modeling, peer influence, and gender roles/stereotypes may support or conflict with the person’s identity. Gender schema theory and social learning theory explain how kids learn expectations about gender from parents, peers, and media; when identity differs from assigned sex, that learning can cause stress or push for social transition (name/pronoun changes, clothing, medical options). For the AP exam, know these key terms (transgender, cisgender, gender dysphoria, gender roles, gender socialization) and how social/environmental factors influence development (Topic 3.3). For a quick review, see the Topic 3.3 study guide on Fiveable (https://library.fiveable.me/ap-psych-new/unit-3/3-gender-and-sexual-orientation/study-guide/hh3cGTl1wLl1EEsA) and extra practice (https://library.fiveable.me/practice/ap-psych-new).
Can someone explain the difference between cisgender and transgender?
Cisgender and transgender describe how a person’s gender identity relates to the sex they were assigned at birth. A cisgender person’s gender identity matches their assigned sex (for example, someone assigned female at birth who identifies as a woman). A transgender person’s gender identity differs from their assigned sex (for example, someone assigned male at birth who identifies as a woman). These terms focus on gender identity (internal sense of self), not sexual orientation (who you’re attracted to). Transgender people sometimes experience gender dysphoria when their assigned sex and gender identity cause significant distress, which is important in clinical and developmental contexts. This distinction shows up in AP Topic 3.3 learning objective 3.3.A about how gender influences socialization, roles, and stereotypes. For a quick refresher, see the Topic 3.3 study guide (https://library.fiveable.me/ap-psych-new/unit-3/3-gender-and-sexual-orientation/study-guide/hh3cGTl1wLl1EEsA). For more practice on Unit 3 concepts, check Fiveable’s unit overview and practice questions (https://library.fiveable.me/ap-psych-new/unit-3 and https://library.fiveable.me/practice/ap-psych-new).
How does media influence gender role development in kids?
Media shapes kids’ gender role development by supplying repeated models, messages, and rules they notice and imitate. Through social learning (observational learning and parental/celebrity modeling), children copy behaviors they see rewarded on TV, YouTube, games, and ads—so stereotyped portrayals (e.g., girls as caretakers, boys as tough) get reinforced. Media also helps form gender schemas: kids sort new info into “male” and “female” categories, so repeated media patterns become part of their automatic expectations and norms. Peers and parents amplify media effects by praising or discouraging behaviors that match those portrayals. Note: media influences gender role socialization and stereotypes more directly than sexual orientation development, which is more complex and linked to identity, biology, and social factors. On the AP exam, this fits Learning Objective 3.3.A (gender roles, gender socialization, gender schema theory, social learning theory)—it’s a good FRQ topic. For a quick review, see the Topic 3.3 study guide (https://library.fiveable.me/ap-psych-new/unit-3/3-gender-and-sexual-orientation/study-guide/hh3cGTl1wLl1EEsA) and extra practice (https://library.fiveable.me/practice/ap-psych-new).
I don't understand how sexual orientation is different from gender - help?
Think of gender and sexual orientation as two different parts of who someone is: - Gender = how you identify and how society expects you to act. It includes gender identity (your internal sense of being male, female, both, neither, or another identity), gender roles/norms, and things like being transgender or cisgender. Gender socialization (parental modeling, peer influence, gender schema theory, social learning) shapes how people learn those roles and stereotypes. - Sexual orientation = who you’re attracted to emotionally, romantically, or sexually (e.g., heterosexual, homosexual, bisexual, queer). It’s about attraction and labels, and topics like coming out and intersectionality fit here. They interact (your gender can affect how you're socialized and how society responds to your sexual orientation), but they’re distinct constructs on the AP framework (see LO 3.3.A). For more review, check the Topic 3.3 study guide (https://library.fiveable.me/ap-psych-new/unit-3/3-gender-and-sexual-orientation/study-guide/hh3cGTl1wLl1EEsA), unit overview (https://library.fiveable.me/ap-psych-new/unit-3), and practice questions (https://library.fiveable.me/practice/ap-psych-new).
What are some examples of how gender affects social development?
Gender shapes social development in a bunch of ways. From early childhood, gender socialization (parents, teachers, media) models gender roles and stereotypes—e.g., parents offering dolls vs. trucks—so kids learn what’s “appropriate” (social learning theory, parental modeling). Children form gender schemas (mental frameworks) that filter info about themselves and others, guiding play, interests, and self-concept. Peers enforce norms: same-sex play groups, teasing, or rewards for gender-typical behavior affect social skills and identity. For transgender or gender-diverse youth, mismatch between assigned sex and gender identity can produce stress or gender dysphoria if social support is low; inclusive environments promote healthier social-emotional development. These ideas are fair game on Unit 3 exam questions (describe/explain how sex/gender influence socialization). For a quick AP-aligned review, check the Topic 3.3 study guide (https://library.fiveable.me/ap-psych-new/unit-3/3-gender-and-sexual-orientation/study-guide/hh3cGTl1wLl1EEsA) and more unit resources/practice problems (https://library.fiveable.me/ap-psych-new; https://library.fiveable.me/practice/ap-psych-new).
Why is it important to study gender and sexual orientation in psychology?
Studying gender and sexual orientation matters in psychology because they shape development, socialization, and mental health. Gender identity, gender roles, and gender schemas influence how people learn, form relationships, and respond to social expectations; social learning (parental modeling, peer influence) and stereotypes affect behavior across the lifespan. Understanding transgender, cisgender, and gender dysphoria helps clinicians recognize minority stress and reduce stigma that can raise risk for anxiety or depression. Sexual orientation (and processes like coming out) intersects with race, class, and other identities—so intersectionality is key for accurate research and fair treatment. On the AP exam you may be asked to describe mechanisms (e.g., gender socialization, social learning theory) or evaluate research methods for these topics, so know the CED keywords. For a focused review, check the Topic 3.3 study guide (https://library.fiveable.me/ap-psych-new/unit-3/3-gender-and-sexual-orientation/study-guide/hh3cGTl1wLl1EEsA) and practice questions (https://library.fiveable.me/practice/ap-psych-new).