MATSEC IM Psychology study materials
MATSEC IM Psychology study resources

MATSEC IM Psychology key terms

MATSEC IM Psychology · Get comfortable with the vocabulary.

Operant conditioning

A learning process in which the likelihood of a behaviour changes because of the consequences that follow it, such as rewards or punishments, rather than through pairing with a prior stimulus.

Related: Reinforcement, Punishment, Extinction
Classical conditioning

Learning in which a neutral stimulus comes to trigger a response after being repeatedly paired with a stimulus that already produces that response, as in Pavlov's salivating dogs.

Related: Unconditioned stimulus, Extinction, Generalisation
Unconditioned stimulus

In classical conditioning, a stimulus that naturally and automatically produces a response without any prior learning, such as food causing salivation in a hungry animal.

Related: Classical conditioning, Conditioned stimulus
Conditioned stimulus

A previously neutral stimulus that, after being paired with an unconditioned stimulus, acquires the power to elicit a learned response on its own.

Related: Classical conditioning, Unconditioned stimulus
Reinforcement

Any consequence that increases the frequency or strength of the behaviour it follows. It may be positive, adding something pleasant, or negative, removing something unpleasant.

Related: Operant conditioning, Punishment, Schedules of reinforcement
Punishment

A consequence that weakens or reduces the frequency of the behaviour it follows, either by adding an unpleasant event or by removing something desirable.

Related: Reinforcement, Operant conditioning
Extinction

The gradual weakening and disappearance of a learned response when the reinforcement or conditioned pairing that maintained it is withdrawn.

Related: Classical conditioning, Spontaneous recovery, Reinforcement
Spontaneous recovery

The reappearance of a previously extinguished conditioned response after a rest period, showing that extinction suppresses learning rather than erasing it.

Related: Extinction, Classical conditioning
Generalisation

Responding in the same way to stimuli that resemble the original conditioned stimulus, so that learning spreads beyond the exact situation in which it was acquired.

Related: Discrimination, Classical conditioning
Schedules of reinforcement

Rules determining how often and when a response is reinforced, such as fixed-ratio or variable-interval patterns, which strongly affect how quickly and persistently behaviour is learned.

Related: Reinforcement, Operant conditioning
Working memory

A limited-capacity system that temporarily holds and manipulates information during tasks such as reasoning, comprehension and problem solving.

Related: Short-term memory, Long-term memory, Encoding
Short-term memory

The store that holds a small amount of information for roughly twenty to thirty seconds without rehearsal, typically around seven items.

Related: Working memory, Chunking, Encoding
Long-term memory

The relatively permanent store of knowledge and skills, with effectively unlimited capacity, from which information can be retrieved after long delays.

Related: Working memory, Retrieval, Encoding
Encoding

The process of transforming sensory information into a form that can be stored in memory, influenced by attention, depth of processing and prior knowledge.

Related: Retrieval, Working memory, Chunking
Retrieval

The process of locating and bringing stored information back into conscious awareness, which can be helped by cues and context matching.

Related: Encoding, Long-term memory
Chunking

A memory strategy that groups separate items into larger meaningful units, allowing more information to be held within a limited capacity store.

Related: Short-term memory, Encoding
Schema

A mental framework built from past experience that organises knowledge and guides how new information is interpreted, stored and recalled.

Related: Assimilation, Accommodation, Encoding
Assimilation

In Piaget's theory, fitting new information into an existing mental framework without changing that framework.

Related: Accommodation, Schema, Equilibration
Accommodation

In Piaget's theory, altering an existing mental framework, or creating a new one, because new information cannot be fitted into what is already known.

Related: Assimilation, Schema, Equilibration
Object permanence

The understanding that objects continue to exist even when they are out of sight, typically developing towards the end of infancy.

Related: Sensorimotor stage, Conservation
Conservation

The understanding that quantity, mass or volume stays the same despite changes in appearance or arrangement, a skill usually acquired in middle childhood.

Related: Object permanence, Egocentrism, Concrete operational stage
Egocentrism

Difficulty in taking another person's viewpoint or recognising that others may hold beliefs and perceptions different from one's own.

Related: Conservation, Theory of mind
Attachment

A strong, enduring emotional bond between an infant and a caregiver, shown in seeking proximity, distress at separation and pleasure at reunion.

Related: Separation anxiety, Internal working model
Internal working model

A mental representation of self and others built from early caregiving experiences, which shapes expectations and behaviour in later relationships.

Related: Attachment, Separation anxiety
Separation anxiety

Distress shown by an infant or young child when separated from a familiar caregiver, peaking in the second half of the first year.

Related: Attachment, Stranger anxiety
Stranger anxiety

Wariness or distress shown by infants towards unfamiliar people, typically emerging around six to nine months of age.

Related: Separation anxiety, Attachment
Conformity

Changing one's behaviour or expressed beliefs to match those of a group, often because of real or imagined pressure from others.

Related: Obedience, Normative social influence, Compliance
Obedience

Following a direct order or instruction from a person in authority, even when the requested action conflicts with personal judgement.

Related: Conformity, Compliance, Agentic state
Compliance

Agreeing to a request without necessarily changing private beliefs, often through techniques such as reciprocity or the foot-in-the-door approach.

Related: Conformity, Obedience
Normative social influence

Conformity driven by the desire to be liked and accepted by a group, rather than by a belief that the group is correct.

Related: Informational social influence, Conformity
Informational social influence

Conformity driven by the belief that others possess accurate information, so their judgements are used as a guide to reality.

Related: Normative social influence, Conformity
Bystander effect

The finding that people are less likely to help in an emergency when others are present, partly because responsibility is shared among witnesses.

Related: Diffusion of responsibility, Prosocial behaviour
Diffusion of responsibility

A reduction in personal responsibility felt by each member of a group, so individuals are less likely to act than if they were alone.

Related: Bystander effect, Prosocial behaviour
Prosocial behaviour

Voluntary actions intended to benefit other people, such as helping, sharing, comforting or cooperating, without obvious personal reward.

Related: Bystander effect, Diffusion of responsibility
Personality

The relatively stable pattern of thoughts, feelings and behaviours that distinguishes one person from another across situations and over time.

Related: Trait theory, Trait
Trait

A relatively enduring characteristic or disposition that predisposes a person to behave in consistent ways across a range of situations.

Related: Personality, Trait theory
Trait theory

An approach to personality that describes individuals in terms of stable dimensions of difference, such as extraversion or neuroticism, rather than unconscious conflicts.

Related: Trait, Personality
Unconscious

In psychodynamic theory, the part of mental life containing thoughts, wishes and memories outside awareness that nonetheless influence behaviour and feelings.

Related: Defence mechanism, Psychoanalysis
Defence mechanism

An unconscious mental strategy used to protect the self from anxiety, for example by denying, projecting or rationalising uncomfortable thoughts and impulses.

Related: Unconscious, Psychoanalysis
Locus of control

A person's general belief about whether outcomes depend on their own actions, an internal locus, or on outside forces such as luck or other people.

Related: Personality, Trait theory