Topic 3.3 Notes – Gender and Sexual Orientation

Sex, Gender, and Sexual Orientation

These terms are related in real life, but in psychology they mean different things.

• Biological sex means physical characteristics tied to reproduction and sexual development, such as anatomy, chromosomes, gonads, and hormones.
• Assigned sex at birth is the label given at birth, usually based on external anatomy.
• Intersex refers to natural variation in sex characteristics. This matters because sex is not always a simple either-or category in physical development.

• Gender includes identities, roles, behaviors, and expectations that people and cultures connect to sex categories.
• Gender identity is your internal sense of gender.
  • Cisgender means gender identity matches assigned sex at birth.
  • Transgender means gender identity differs from assigned sex at birth.
  • Nonbinary means a person does not identify only as a man or only as a woman.
• Gender expression is outward presentation through clothing, appearance, names, and mannerisms.
• Gender roles are cultural expectations for how people of a given gender should act.
• Gender-role stereotypes are oversimplified beliefs about genders.
• Gender typing means adopting behaviors or interests a culture links to a gender.

• Sexual orientation is an enduring pattern of emotional, romantic, and/or sexual attraction.
  • Heterosexual = attraction primarily to another gender
  • Gay or lesbian = attraction primarily to the same gender
  • Bisexual = attraction to more than one gender
  • Asexual = little or no sexual attraction

The distinction AP loves here is simple but easy to miss:

• Sex ≠ gender identity
• Gender identity ≠ gender expression
• Gender identity ≠ sexual orientation
• Behavior, attraction, and identity labels are connected, but they are not interchangeable

How Gender Socialization Happens

Socialization is how people learn cultural norms, values, and expected behavior over time. Gender socialization can begin as soon as others classify a child and respond to that label.

Direct instruction

People give explicit messages such as “boys don’t cry” or “girls should be polite.” This is the most obvious pathway.

Reinforcement

Behavior that fits gender expectations may get praise, attention, approval, or rewards. Nonconforming behavior may get teasing, discouragement, or punishment.

Observational learning

Children watch and imitate parents, peers, teachers, and media figures. This connects to Bandura’s social learning theory. You learn by observing models and the consequences those models get.

Opportunity structures

Some activities, courses, jobs, or roles are made more available or welcoming than others. Access shapes interests and skill development.

Gender schemas

These are mental frameworks that organize gender information. Children often notice and remember stereotype-consistent examples more easily than counterexamples.

Children are active in this process too. They sort themselves and others into categories, look for models, and may conform, mix roles, or resist expectations.

Where Gender Socialization Comes From

These sources work together, not one at a time.

Families

Families model behavior, divide chores, respond differently to emotions, and encourage different interests. A lot of this is subtle and unintentional.

Peers

Peers become especially powerful in school and adolescence. Inclusion, praise, teasing, and exclusion can strongly enforce gender norms.

Schools

Teacher expectations, classroom interaction, course encouragement, extracurricular access, and curriculum representation all affect belonging and confidence.

Media

Media gives repeated models of appearance, careers, relationships, and status. It can reinforce stereotypes or challenge them.

Culture

Gender roles vary across societies and across time. That shows many expectations are socially constructed, not fixed biological rules.

How Sex and Gender Influence Development

The core idea is interaction, not biology versus environment.

• Biology matters, including hormones and reproductive development.
• Social experience matters too.
• Neuroplasticity means repeated practice and opportunities can shape skills and behavior over time.

Development can be affected in areas like:

• Play and interests
• Emotional expression
• Academic confidence and subject choice
• Peer relationships
• Career aspirations
• Adult family and work roles

A huge interpretation rule on tests:

• Group averages often overlap a lot
• Variation within groups is often larger than average difference between groups
• A group trend does not let you predict an individual person

Sexual Orientation and What Research Shows

Sexual orientation is separate from sex, gender identity, gender expression, and gender roles. A person’s orientation cannot be inferred from how they dress, act, or identify their gender.

Research does not support parenting style, imitation, peer influence, or exposure to LGBTQ+ people as causes. The best explanation is multiple interacting biological and developmental influences. There is no single cause, and orientation is not just a voluntary choice or a conditioned habit.

Social context still matters a lot. It shapes:

• disclosure
• identity labels
• safety
• stigma
• well-being

Distress linked with orientation usually reflects discrimination, rejection, concealment, and harassment, not orientation itself.

Common methods include surveys, interviews, correlational studies, longitudinal and cross-sectional studies, cross-cultural comparisons, and naturalistic observation. Experiments can test reactions to labels, but they cannot ethically assign sex, gender identity, or orientation.

When you read findings in this area, keep a key research reminder in mind. A correlation does not prove that one thing caused the other, and both variables may reflect a third factor instead.

Watch for these research traps:

• Correlation ≠ causation
• Confounds and reverse causation
• Selection bias, social-desirability bias, nonresponse bias
• Cohort effects in cross-sectional research
• Attrition in longitudinal research