Development and Learning
How researchers study change across the lifespan, how thinking and social bonds develop in childhood, and how classical, operant, and observational learning explain behavior.
Developing Understanding
Unit 3 combines two major areas: development, which asks how thinking, attachment, and identity change across the lifespan, and learning, which asks how experience changes behavior through conditioning and observation. Both areas depend heavily on being able to apply a definition to a new example rather than just recalling it.
What you need to know for Unit 3
These groupings follow the order terms are introduced in the course. Be ready to explain and apply each one, not just define it.
Studying Development
Longitudinal studies follow the same people over time, while cross-sectional studies compare different age groups at a single point in time, each with different strengths and limitations. Critical periods are developmental windows when certain experiences matter most, and maturation describes biologically programmed growth.
Cognitive Development
Schemas are mental frameworks that get updated through assimilation (fitting new information into existing schemas) and accommodation (changing schemas to fit new information). Milestones such as object permanence, conservation, and theory of mind mark major cognitive shifts in childhood.
Social Development and Parenting
Attachment is the emotional bond between a child and caregiver, and secure attachment describes a healthy pattern of comfort-seeking. Authoritative, authoritarian, and permissive parenting styles differ in warmth and control, and identity development continues to evolve into adolescence and beyond.
Classical Conditioning
Classical conditioning links a neutral stimulus with an unconditioned stimulus until it becomes a conditioned stimulus that triggers a conditioned response. Acquisition, extinction, spontaneous recovery, stimulus generalization, and stimulus discrimination describe how these associations form, fade, and sharpen.
Operant Conditioning
Operant conditioning explains behavior through consequences: positive and negative reinforcement increase behavior, positive and negative punishment decrease it. Shaping builds complex behavior through successive approximations, and reinforcement schedules — fixed/variable ratio and fixed/variable interval — produce different response patterns.
Cognitive and Observational Learning
Observational learning occurs by watching a model, latent learning happens without obvious reinforcement until it's useful, and a cognitive map is a mental layout of an environment. Learned helplessness develops when repeated uncontrollable events reduce attempts to escape or change a situation.
Unit 3 Vocabulary
All 43 terms for this unit, grouped to match the key concepts above. Prefer flashcards? Use the flashcard tool filtered to Unit 3.
Studying Development
Longitudinal Study
A design that follows the same people over an extended period.
Cross-Sectional Study
A design that compares different age groups at one point in time.
Critical Period
A limited developmental window during which certain experiences have especially strong effects.
Maturation
Biologically programmed growth processes that unfold with development.
Cognitive Development
Schema
A mental framework used to organize and interpret information.
Assimilation
Interpreting new experiences using existing schemas.
Accommodation
Changing existing schemas or creating new ones to fit new information.
Object Permanence
Understanding that objects continue to exist even when not currently perceived.
Conservation
Understanding that quantity can remain constant despite changes in appearance.
Theory Of Mind
Understanding that other people can have thoughts, beliefs, and perspectives different from one's own.
Social Development and Parenting
Attachment
An enduring emotional bond between an infant or child and a caregiver.
Secure Attachment
An attachment pattern involving caregiver use as a secure base and effective comfort upon reunion.
Authoritative Parenting
A parenting style combining warmth and responsiveness with clear, consistent expectations.
Authoritarian Parenting
A parenting style emphasizing strict control and obedience with relatively low responsiveness.
Permissive Parenting
A parenting style high in warmth but low in consistent demands or limits.
Identity
A person's developing sense of self, values, roles, and commitments.
Classical Conditioning
Classical Conditioning
Learning through association between stimuli.
Unconditioned Stimulus
A stimulus that naturally and automatically produces a response before conditioning.
Unconditioned Response
An unlearned response naturally produced by an unconditioned stimulus.
Conditioned Stimulus
A previously neutral stimulus that comes to trigger a learned response after association.
Conditioned Response
A learned response to a conditioned stimulus.
Acquisition
The initial learning of an association.
Extinction
Decrease of a conditioned response when the conditioned stimulus is repeatedly presented without the unconditioned stimulus.
Spontaneous Recovery
Reappearance of an extinguished conditioned response after a pause.
Stimulus Generalization
Responding similarly to stimuli that resemble the conditioned stimulus.
Stimulus Discrimination
Learning to distinguish between the conditioned stimulus and other stimuli.
Operant Conditioning
Operant Conditioning
Learning in which behavior changes as a function of consequences.
Positive Reinforcement
Adding a desirable consequence to increase a behavior.
Negative Reinforcement
Removing or avoiding an aversive condition to increase a behavior.
Positive Punishment
Adding an aversive consequence to decrease a behavior.
Negative Punishment
Removing a desirable consequence to decrease a behavior.
Shaping
Reinforcing successive approximations toward a target behavior.
Continuous Reinforcement
Reinforcing a behavior every time it occurs.
Partial Reinforcement
Reinforcing a behavior only some of the time.
Fixed-Ratio Schedule
Reinforcement after a set number of responses.
Variable-Ratio Schedule
Reinforcement after an unpredictable number of responses.
Fixed-Interval Schedule
Reinforcement for the first response after a set amount of time.
Variable-Interval Schedule
Reinforcement for the first response after unpredictable time intervals.
Cognitive and Observational Learning
Observational Learning
Learning by watching others and the consequences they experience.
Modeling
Demonstrating a behavior that another person may imitate.
Latent Learning
Learning that occurs without obvious reinforcement and may appear later when useful.
Cognitive Map
A mental representation of the layout of an environment.
Learned Helplessness
Reduced attempts to escape or change aversive conditions after repeated experiences of uncontrollability.
AP-Style Practice Questions
Try these multiple-choice questions drawn from the Unit 3 question bank. Click "Show Answer" to check your work and read the explanation. Want more? Build a full set on the Practice Exam page.
Which option provides the best example or definition of observational learning?
- A. A parenting style emphasizing strict control and obedience with relatively low responsiveness.
- B. Learning by watching others and the consequences they experience.
- C. Understanding that objects continue to exist even when not currently perceived.
- D. Adding an aversive consequence to decrease a behavior.
Which option provides the best example or definition of exposure therapy?
- A. A behavioral method using safe, gradual or structured contact with feared stimuli to reduce fear responses.
- B. Attempting to reduce stress by directly changing the stressor or situation.
- C. A mood disorder involving episodes of mania or hypomania, usually along with depressive episodes.
- D. Ability to adapt and recover in the face of adversity or stress.
Which option provides the best example or definition of trait perspective?
- A. A perspective describing personality in terms of relatively stable characteristics.
- B. Changing behavior in response to a direct command from an authority.
- C. Favoring one's own group over other groups.
- D. Reduced individual effort when working in a group on a shared task.
Which option provides the best example or definition of bottom-up processing?
- A. Explicit memory for facts, meanings, and general knowledge.
- B. A measure intended to assess what a person has already learned.
- C. Perception that begins with incoming sensory information and builds toward recognition.
- D. Memory expressed without conscious recollection, such as skills or conditioned associations.
Which option provides the best example or definition of representativeness heuristic?
- A. The consistency of a measurement or test.
- B. Judging category membership by similarity to a prototype, sometimes ignoring base rates.
- C. Perception guided by expectations, experience, context, and prior knowledge.
- D. Explicit memory for facts, meanings, and general knowledge.
Which option provides the best example or definition of thalamus?
- A. A neurotransmitter involved in mood, sleep, appetite, and other functions.
- B. Behavior reflects interacting genetic and environmental influences rather than a simple either-or cause.
- C. Retinal receptors concentrated near the fovea that support color and fine detail.
- D. A forebrain relay station for most sensory information headed to the cortex.
Which option provides the best example or definition of attachment?
- A. A limited developmental window during which certain experiences have especially strong effects.
- B. Adding a desirable consequence to increase a behavior.
- C. Removing or avoiding an aversive condition to increase a behavior.
- D. An enduring emotional bond between an infant or child and a caregiver.
Which option provides the best example or definition of chunking?
- A. A quick mental shortcut that is efficient but can produce errors.
- B. Organizing information into meaningful units to increase effective working-memory capacity.
- C. Accessing stored information.
- D. Retaining encoded information over time.
Which option provides the best example or definition of self-serving bias?
- A. Tendency to overemphasize dispositional causes and underestimate situational causes when explaining others' behavior.
- B. Discomfort from inconsistent attitudes or behavior that can motivate attitude change or rationalization.
- C. Attitude change based on superficial cues such as attractiveness, emotion, or credibility.
- D. Tendency to credit successes to oneself and blame failures on outside factors.
Which option provides the best example or definition of depth perception?
- A. The capacity to learn from experience, solve problems, and adapt, defined and measured in multiple ways.
- B. The ability to perceive the world in three dimensions and judge distance.
- C. Perception that begins with incoming sensory information and builds toward recognition.
- D. A limited-capacity system for actively holding and manipulating information.
How to Study This Unit
Label Every Element of a Conditioning Scenario
For classical conditioning questions, practice identifying the US, UR, CS, and CR separately before answering — most wrong answers mix these up.
Reinforcement vs. Punishment
Reinforcement always increases behavior; punishment always decreases it. Positive/negative refers to adding or removing something, not to good or bad.
Know Your Schedules
Variable-ratio schedules (like slot machines) produce the strongest, most resistant-to-extinction responding — a favorite exam scenario.