SACE Stage 2 Psychology study materials
SACE Stage 2 Psychology study resources

SACE Stage 2 Psychology key terms

SACE Stage 2 Psychology · Get comfortable with the vocabulary.

Operant conditioning

A learning process in which the likelihood of a behaviour changes because that behaviour is followed by a consequence, such as a reward or punishment.

Related: Positive reinforcement, Negative reinforcement, Punishment
Classical conditioning

A learning process in which a neutral stimulus comes to trigger a reflexive response after being repeatedly paired with a stimulus that already produces that response.

Related: Unconditioned stimulus, Conditioned response, Extinction
Unconditioned stimulus

A stimulus that naturally and automatically produces a reflexive response without any prior learning, such as food causing salivation.

Related: Classical conditioning, Conditioned response
Conditioned response

A learned reaction that occurs to a previously neutral stimulus after that stimulus has been paired repeatedly with an unconditioned stimulus.

Related: Classical conditioning, Unconditioned stimulus, Extinction
Positive reinforcement

Adding a desirable consequence after a behaviour, which increases the chance that the behaviour will be repeated in similar situations.

Related: Operant conditioning, Negative reinforcement
Negative reinforcement

Removing or avoiding an unpleasant stimulus after a behaviour, which increases the likelihood that the behaviour will occur again.

Related: Operant conditioning, Positive reinforcement, Punishment
Punishment

A consequence that follows a behaviour and reduces the likelihood of that behaviour recurring, either by adding something unpleasant or removing something desirable.

Related: Operant conditioning, Negative reinforcement
Extinction

The gradual weakening and disappearance of a learned response when the conditioned stimulus is repeatedly presented without the unconditioned stimulus or reinforcement.

Related: Classical conditioning, Spontaneous recovery
Spontaneous recovery

The reappearance of a previously extinguished conditioned response after a period of rest, showing that the original learning was not fully erased.

Related: Extinction, Classical conditioning
Observational learning

Acquiring or changing a behaviour by watching others and noting the consequences they experience, rather than through direct reinforcement of one's own actions.

Related: Modelling, Vicarious reinforcement
Modelling

Demonstrating a behaviour so that an observer can learn it, often used deliberately in therapy or teaching to show a desired skill.

Related: Observational learning, Vicarious reinforcement
Vicarious reinforcement

An increase in a behaviour after observing someone else receive a reward for that behaviour, without the observer being reinforced directly.

Related: Observational learning, Modelling
Working memory

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

Related: Encoding, Long-term memory
Encoding

The process of converting sensory information into a form that can be stored in memory, influenced by attention, elaboration and organisation of the material.

Related: Working memory, Long-term memory, Retrieval
Long-term memory

The relatively permanent store of information that can hold very large amounts of material for extended periods, including facts, skills and personal experiences.

Related: Working memory, Encoding, Retrieval
Retrieval

The process of locating and bringing stored information back into conscious awareness, which can be aided by cues and organised retrieval practice.

Related: Encoding, Long-term memory
Schema

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

Related: Assimilation, Accommodation
Assimilation

Interpreting new experiences by fitting them into an existing mental framework without substantially changing that framework.

Related: Schema, Accommodation
Accommodation

Modifying an existing mental framework, or creating a new one, because new information does not fit what is already known.

Related: Schema, Assimilation
Neurotransmitter

A chemical released by a neuron that carries a signal across a synapse to influence the activity of another neuron or target cell.

Related: Synapse, Reuptake
Synapse

The small gap between two neurons where chemical signals are released and received, allowing communication between nerve cells.

Related: Neurotransmitter, Reuptake
Reuptake

The reabsorption of a neurotransmitter by the neuron that released it, which removes the chemical from the synapse and ends its effect.

Related: Neurotransmitter, Synapse
Stress

A psychological and physiological response to demands or threats that are perceived as exceeding a person's ability to cope with them.

Related: Fight-or-flight response, Coping
Fight-or-flight response

A rapid bodily reaction to a perceived threat, involving increased heart rate, faster breathing and hormone release, preparing the person to confront or escape danger.

Related: Stress, Coping
Coping

The thoughts and behaviours a person uses to manage internal or external demands that are judged to be stressful or overwhelming.

Related: Stress, Fight-or-flight response
Conformity

Changing one's behaviour or expressed beliefs to match the norms or expectations of a group, often because of real or imagined social pressure.

Related: Obedience, Social norms
Obedience

Following a direct order or instruction from an authority figure, even when the requested action conflicts with one's own judgement.

Related: Conformity, Social norms
Social norms

Shared, informal rules within a group that specify how members are expected to behave in particular situations and that guide social behaviour.

Related: Conformity, Obedience
Reliability

The extent to which a measurement or research procedure produces consistent results when repeated under similar conditions.

Related: Validity, Operational definition
Validity

The extent to which a study or measurement accurately assesses what it claims to measure and supports the conclusions drawn from it.

Related: Reliability, Operational definition
Operational definition

A precise statement of how a variable will be measured or manipulated in a study, allowing others to replicate the procedure.

Related: Reliability, Validity
Independent variable

The factor that the researcher deliberately changes or manipulates in an experiment to observe its effect on another variable.

Related: Dependent variable, Confounding variable
Dependent variable

The factor that is measured in an experiment and that is expected to change as a result of manipulating the independent variable.

Related: Independent variable, Operational definition
Confounding variable

An uncontrolled factor that varies systematically with the independent variable and could therefore distort the observed relationship between variables.

Related: Independent variable, Dependent variable
Random allocation

Assigning participants to experimental conditions by chance, so that each person has an equal probability of being placed in any group.

Related: Confounding variable, Validity
Informed consent

Gaining participants' voluntary agreement to take part after giving them a clear explanation of the study's purpose, procedures, risks and their right to withdraw.

Related: Ethical guidelines, Debriefing
Debriefing

Explaining the true aims, methods and findings of a study to participants afterwards, and addressing any concerns or distress it caused.

Related: Informed consent, Ethical guidelines
Ethical guidelines

Established principles that researchers must follow to protect participants, including consent, confidentiality, avoidance of harm and honest reporting of results.

Related: Informed consent, Debriefing