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VCE Psychology study materials
VCE Psychology study resources

VCE Psychology practice questions

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Question 1Unit 1

Which part of a neuron receives incoming messages from other neurons?

  1. The terminal buttons
  2. The axon
  3. The myelin sheath
  4. The dendrites Correct answer.

Explanation

Dendrites are branching extensions that collect signals from neighbouring neurons and carry them toward the cell body, where the information is integrated. The axon conducts the resulting impulse away from the soma, and the terminal buttons release neurotransmitter at the synapse.

Question 2Unit 1

A neurotransmitter is best described as a chemical that

  1. insulates the axon to speed up transmission
  2. carries electrical current along the axon
  3. builds new myelin around active neurons
  4. crosses the synaptic gap to influence the next neuron Correct answer.

Explanation

Neurotransmitters are stored in vesicles in the terminal buttons and are released into the synaptic gap, where they bind to receptor sites on the postsynaptic neuron and either excite or inhibit it. Electrical conduction along the axon is a separate process, and insulation is a structural role of myelin.

Question 3Unit 1

Which division of the nervous system is responsible for returning the body to a calm state after a stressful event?

  1. The somatic nervous system
  2. The parasympathetic nervous system Correct answer.
  3. The sympathetic nervous system
  4. The central nervous system

Explanation

The parasympathetic branch of the autonomic nervous system conserves energy and restores resting function after arousal, for example by slowing heart rate and aiding digestion. The sympathetic branch produces the opposite fight-or-flight response, and the somatic system governs voluntary skeletal movement.

Question 4Unit 1

A researcher measures participants' heart rate before and after they watch a frightening film. Which research method is being used?

  1. A controlled experiment Correct answer.
  2. A correlational study
  3. A naturalistic observation
  4. A case study

Explanation

The researcher manipulates an independent variable, the frightening film, and measures a dependent variable, heart rate, while controlling other conditions, which defines an experiment. Case studies and naturalistic observation involve no deliberate manipulation, and correlational designs measure variables without altering them.

Question 5Unit 1

In a study of sleep and memory, participants are told the true purpose of the research before giving consent. This practice protects which ethical principle?

  1. Confidentiality
  2. Withdrawal rights
  3. Informed consent Correct answer.
  4. Debriefing

Explanation

Informed consent requires that participants understand the nature and purpose of the study before agreeing to take part, so disclosure of the true aim protects this principle. Debriefing occurs afterwards, confidentiality concerns how data are stored, and withdrawal rights concern leaving the study.

Question 6Unit 1

Which statement about brain plasticity is accurate?

  1. Plasticity is the process of myelinating axons in the peripheral nervous system
  2. Plasticity means the brain grows new neurons only during childhood
  3. Plasticity refers to the brain's ability to reorganise its connections in response to experience Correct answer.
  4. Plasticity is fixed at birth and does not change with experience

Explanation

Plasticity is the capacity of the nervous system to modify its structure and function through experience, such as strengthening frequently used pathways or reassigning areas after injury. It continues across the lifespan rather than being fixed at birth, and it is broader than the creation of new neurons.

Question 7Unit 1

A person's pupils dilate and their heart races as they step onto a stage. Which nervous system response is occurring?

  1. Parasympathetic activation
  2. Sympathetic activation Correct answer.
  3. Spinal reflex arc activity
  4. Somatic inhibition

Explanation

The sympathetic division of the autonomic nervous system produces the fight-or-flight response, raising heart rate and dilating pupils to prepare the body for action. The parasympathetic division produces the opposite calming effects, and spinal reflexes are rapid automatic responses to a stimulus rather than this general arousal.

Question 8Unit 1

Which statement best distinguishes sensation from perception?

  1. Sensation and perception are identical processes with different names
  2. Sensation is the interpretation of stimuli and perception is their detection
  3. Sensation occurs only in the eye and perception only in the brain
  4. Sensation is detecting stimuli and perception is interpreting them Correct answer.

Explanation

Sensation is the process by which sensory receptors detect physical energy and convert it into neural signals, while perception is the brain's organisation and interpretation of those signals into meaningful experience. The two are sequential but distinct stages of processing.

Question 9Unit 1

A student studies in a noisy room and later finds it easier to concentrate in a quiet library. This improvement is best explained by

  1. a figure-ground illusion altering the perception of sound
  2. absolute threshold rising permanently after exposure
  3. perceptual set changing the student's expectations
  4. sensory adaptation reducing responsiveness to the noise Correct answer.

Explanation

Sensory adaptation is the reduced sensitivity of receptors to an unchanging stimulus, so repeated exposure to noise makes it less noticeable and frees attention for study. Perceptual set and figure-ground organisation concern how ambiguous input is interpreted, not the fading of a constant stimulus.

Question 10Unit 1

A split-brain patient is shown an object only in the left visual field. Which response is most likely?

  1. The patient can pick up the object with the left hand but cannot name it Correct answer.
  2. The patient names the object but cannot touch it
  3. The patient can name the object easily
  4. The patient reports seeing nothing at all and cannot act on the object

Explanation

Information from the left visual field crosses to the right hemisphere, which in most split-brain patients lacks the language centres needed for naming. The right hemisphere can still guide the left hand to select the object, so the patient can act on it without being able to say its name.

Question 11Unit 1

Which change occurs at the synapse during long-term potentiation?

  1. Receptor sites on the postsynaptic neuron become fewer
  2. Repeated stimulation strengthens the connection between neurons Correct answer.
  3. Neurotransmitter is permanently depleted from the terminal buttons
  4. The synaptic gap widens and slows transmission

Explanation

Long-term potentiation is a lasting increase in synaptic strength following repeated high-frequency stimulation, and it is widely considered a cellular basis of learning and memory. It involves more effective transmission, not depletion of transmitter or a widening of the gap.

Question 12Unit 1

A psychologist wants to test whether caffeine improves reaction time. Which design gives the strongest evidence of a causal effect?

  1. Randomly assigning participants to caffeine or placebo and measuring reaction time Correct answer.
  2. Asking participants how much coffee they usually drink
  3. Observing people in a café and timing their responses
  4. Interviewing people who report feeling more alert after coffee

Explanation

Random assignment to a treatment and a placebo condition, with a measured outcome, controls confounding variables and allows a causal conclusion about caffeine. The other options observe or survey existing behaviour, so they can reveal associations but not establish cause.

Question 13Unit 1

Which statement about the role of the myelin sheath is correct?

  1. It increases the speed of neural transmission along the axon Correct answer.
  2. It stores genetic material inside the cell body
  3. It receives signals from neighbouring neurons
  4. It releases neurotransmitters into the synaptic gap

Explanation

The myelin sheath is a fatty layer that insulates segments of the axon, allowing the impulse to jump between nodes and travel faster. Release of transmitter is the job of terminal buttons, reception is the job of dendrites, and genetic material is housed in the nucleus.

Question 14Unit 1

Participants in an experiment are given a sugar pill and told it will improve their mood. Many report feeling happier. This outcome illustrates

  1. demand characteristics of the experimenter
  2. random sampling
  3. the placebo effect Correct answer.
  4. a double-blind procedure

Explanation

The placebo effect occurs when a participant's expectation of improvement produces a real change even though the treatment is inert. Random sampling concerns how participants are selected, and a double-blind procedure is a control technique rather than the phenomenon itself.

Question 15Unit 1

A study finds a correlation of -0.8 between hours of sleep and reported stress. Which interpretation is valid?

  1. More sleep causes lower stress
  2. Stress causes people to sleep more
  3. The relationship is weak and probably due to chance
  4. Less sleep is associated with higher stress Correct answer.

Explanation

A correlation of -0.8 is a strong negative association, meaning that as one variable increases the other tends to decrease, so less sleep goes with higher stress. Correlation alone cannot identify which variable causes the other, and a value of -0.8 indicates a strong rather than weak relationship.

Question 16Unit 1

Which statement about the endocrine system is correct?

  1. It operates independently of the nervous system
  2. It releases hormones that travel through the bloodstream Correct answer.
  3. It consists only of the brain and spinal cord
  4. It transmits messages faster than the nervous system

Explanation

Endocrine glands secrete hormones into the bloodstream, where they travel to target organs and produce slower but often longer-lasting effects than neural signals. The nervous system is the faster messenger, and the two systems interact, for example through the hypothalamus controlling the pituitary gland.

Question 17Unit 1

A participant is asked to press a button whenever a light appears and to ignore a tone that is also presented. This task is primarily measuring

  1. sensory adaptation
  2. perceptual constancy
  3. depth perception
  4. selective attention Correct answer.

Explanation

Selective attention is the process of focusing on one stimulus while filtering out competing stimuli, which is exactly what ignoring the tone while responding to the light requires. Sensory adaptation is a decline in receptor sensitivity, and perceptual constancy concerns stable perception of objects despite changing images.

Question 18Unit 1

Which sequence correctly describes transmission across a synapse?

  1. Neurotransmitter is released into the gap, then binds to receptor sites on the next neuron Correct answer.
  2. Vesicles bind to receptors, then neurotransmitter is released into the axon
  3. Receptors release neurotransmitter, which travels back along the axon
  4. The myelin sheath passes the impulse directly to the next neuron

Explanation

An impulse arriving at the terminal buttons triggers vesicles to release neurotransmitter into the synaptic gap, where molecules bind to receptor sites on the postsynaptic membrane. This binding changes the likelihood that the receiving neuron will fire.

Question 19Unit 1

A patient who has suffered damage to the hippocampus is most likely to have difficulty with

  1. forming new long-term declarative memories Correct answer.
  2. regulating body temperature
  3. producing fluent speech
  4. maintaining balance while walking

Explanation

The hippocampus is crucial for consolidating new explicit memories, so damage typically impairs the formation of new factual and episodic memories while older memories remain. Temperature regulation, speech production and balance depend on other structures such as the hypothalamus, Broca's area and the cerebellum.

Question 20Unit 1

A researcher wants to study children's aggressive behaviour during playground games without influencing them. Which method is most appropriate?

  1. Naturalistic observation in the playground Correct answer.
  2. A questionnaire completed by parents
  3. A laboratory experiment with toys
  4. A structured interview with teachers only

Explanation

Naturalistic observation records behaviour as it normally occurs in a real setting, minimising interference and increasing ecological validity for studying spontaneous aggression. Interviews and questionnaires rely on second-hand reports, and a laboratory experiment would alter the setting being studied.

Question 21Unit 1

Which statement about hemispheric specialisation is best supported by evidence?

  1. Each hemisphere controls the same side of the body
  2. Both hemispheres perform identical functions in all people
  3. The right hemisphere is unable to process any language
  4. The left hemisphere is usually dominant for language in most people Correct answer.

Explanation

In the majority of people the left hemisphere contains the main language areas, such as Broca's and Wernicke's areas, which is why left-hemisphere damage often produces language difficulties. The hemispheres control opposite sides of the body and show relative rather than absolute specialisation.

Question 22Unit 1

A student who repeatedly practises a musical instrument shows measurable changes in the cortical areas controlling the fingers used. This best illustrates

  1. experience-dependent plasticity Correct answer.
  2. sensory adaptation
  3. a spinal reflex
  4. the placebo effect

Explanation

Experience-dependent plasticity is the reorganisation of neural connections in response to specific training and experience, which is why the cortical representation of frequently used fingers enlarges with practice. Sensory adaptation is a decline in receptor response, and reflexes are automatic responses rather than learned reorganisation.

Question 23Unit 1

A researcher finds that participants who take a new supplement lose more weight than a control group, but the supplement group also exercised more. The main threat to validity is

  1. experimenter bias in scoring
  2. a lack of random sampling
  3. the placebo effect
  4. a confounding variable Correct answer.

Explanation

A confounding variable is an uncontrolled factor that varies with the independent variable and offers an alternative explanation for the result, which is the case with the differing exercise levels. Without controlling exercise, the weight loss cannot be attributed specifically to the supplement.

Question 24Unit 1

Which explanation best accounts for why a person does not consciously notice the constant pressure of clothing on their skin?

  1. Clothing pressure falls below the absolute threshold permanently
  2. The receptors stop responding to the unchanging stimulus through adaptation Correct answer.
  3. Touch receptors in the skin are inactive during the day
  4. The brain cannot process touch information while a person is awake

Explanation

Sensory adaptation reduces the responsiveness of receptors to an unchanging stimulus, so constant pressure from clothing fades from awareness even though the stimulus is still present. The receptors remain active and the stimulus is still above threshold; only the response diminishes.

Question 25Unit 1

A researcher studying stress wants to ensure participants feel free to leave the study at any time without penalty. This requirement reflects the ethical principle of

  1. confidentiality of data
  2. voluntary participation and withdrawal rights Correct answer.
  3. deception in research
  4. informed consent documentation

Explanation

Voluntary participation and withdrawal rights mean that people may decline to take part or stop at any point without penalty or loss of benefits. Informed consent is related but concerns disclosure before agreeing, while confidentiality concerns protecting identity and data.

Question 26Unit 1

Which part of a neuron receives incoming signals from other neurons?

  1. The myelin sheath
  2. The synaptic vesicles
  3. The axon terminals
  4. The dendrites Correct answer.

Explanation

Dendrites are the branching extensions that collect signals from neighbouring neurons and carry them toward the cell body. The axon then transmits an impulse away, ending at terminals that release neurotransmitter.

Question 27Unit 1

A neurotransmitter is released into the synaptic gap and binds to receptors on the next neuron. What is this junction called?

  1. The reflex arc
  2. The node of Ranvier
  3. The synapse Correct answer.
  4. The soma

Explanation

A synapse is the small gap between two neurons where chemical transmission occurs. Neurotransmitter crosses this gap and binds to receptors on the postsynaptic membrane, allowing the signal to continue.

Question 28Unit 1

Which division of the nervous system prepares the body for action during a stressful event?

  1. The parasympathetic nervous system
  2. The sympathetic nervous system Correct answer.
  3. The enteric nervous system
  4. The somatic nervous system

Explanation

The sympathetic branch of the autonomic nervous system mobilises the body for fight-or-flight, raising heart rate and diverting blood to muscles. The parasympathetic branch generally calms the body afterwards.

Question 29Unit 1

Which lobe of the cerebral cortex is primarily responsible for processing visual information?

  1. The frontal lobe
  2. The occipital lobe Correct answer.
  3. The parietal lobe
  4. The temporal lobe

Explanation

The occipital lobe at the back of the brain contains the primary visual cortex, where signals from the eyes are first processed. Other lobes handle movement, touch, and hearing.

Question 30Unit 1

In classical conditioning, a neutral stimulus that comes to trigger a response after pairing with an unconditioned stimulus is called the:

  1. Conditioned stimulus Correct answer.
  2. Reinforcer
  3. Unconditioned response
  4. Punisher

Explanation

A neutral stimulus becomes a conditioned stimulus once it reliably predicts the unconditioned stimulus and elicits the response on its own. That learned response is the conditioned response.

Question 31Unit 1

A researcher counts how many times a child raises their hand during a lesson. Which type of data is being collected?

  1. Quantitative physiological
  2. Qualitative interview
  3. Quantitative observational Correct answer.
  4. Qualitative self-report

Explanation

Counting observable behaviours produces numerical data gathered by watching participants, which is quantitative observational data. Self-report and physiological measures involve different sources of information.

Question 32Unit 1

Which term describes a person's awareness of their own thoughts, feelings, and surroundings at a given moment?

  1. Memory
  2. Perception
  3. Consciousness Correct answer.
  4. Attention

Explanation

Consciousness refers to the ongoing awareness of internal states and the external environment. Attention and perception are related processes that operate within conscious experience but do not define it.

Question 33Unit 1

Which statement best describes the role of the control group in an experiment?

  1. It receives the highest dose of the independent variable
  2. It is told the true aim of the study before it begins
  3. It is selected because its members already show the target behaviour
  4. It provides a baseline for comparison against the experimental group Correct answer.

Explanation

A control group does not receive the treatment, so its results show what would happen without the manipulation. Comparing the experimental group with this baseline helps isolate the effect of the independent variable.

Question 34Unit 1

A person is startled by a loud noise and their heart rate rises. Shortly afterwards their heart rate returns to normal. Which process best explains the return to normal?

  1. The parasympathetic nervous system becoming more active Correct answer.
  2. The sympathetic nervous system becoming more active
  3. The somatic nervous system speeding up voluntary movement
  4. The adrenal glands releasing more adrenaline

Explanation

After arousal, the parasympathetic branch dominates and slows the heart, restoring a resting state. This counterbalancing keeps autonomic activity within a stable range.

Question 35Unit 1

A student practises recalling French vocabulary each night and their test scores steadily improve. Which process best explains this improvement?

  1. Sensory adaptation
  2. Long-term potentiation Correct answer.
  3. Neurotransmitter reuptake
  4. Habituation

Explanation

Repeated activation of the same neural pathways strengthens synaptic connections, a process called long-term potentiation. This strengthening underlies the improved retention seen with regular practice.

Question 36Unit 1

A researcher gives one class a new study technique and another class the usual method, then compares exam scores. What is the independent variable?

  1. The number of students in each class
  2. The study technique used Correct answer.
  3. The class that used the new technique
  4. The exam scores

Explanation

The independent variable is the factor the researcher deliberately manipulates, which here is the type of study technique. Exam scores are the dependent variable that is measured.

Question 37Unit 1

A person who has just eaten a large meal feels drowsy and relaxed. Which nervous system activity is most consistent with this state?

  1. Increased reflex activity promoting withdrawal
  2. Increased sympathetic activity promoting alertness
  3. Increased parasympathetic activity promoting digestion Correct answer.
  4. Increased somatic activity promoting movement

Explanation

The parasympathetic system supports rest-and-digest functions, slowing the heart and promoting digestion after a meal. This matches the relaxed, drowsy state described.

Question 38Unit 1

A dog learns to salivate at the sound of a bell that has been paired with food. If the bell is repeatedly presented without food, the salivation gradually stops. What is this process called?

  1. Spontaneous recovery
  2. Extinction Correct answer.
  3. Generalisation
  4. Reinforcement

Explanation

Extinction occurs when a conditioned stimulus is repeatedly presented without the unconditioned stimulus, so the conditioned response fades. The association is weakened rather than erased.

Question 39Unit 1

A sleep researcher records brain waves to identify when a participant enters deep sleep. Which pattern is most characteristic of this stage?

  1. Low-amplitude, high-frequency waves
  2. Mixed-frequency waves typical of light dozing
  3. Rapid eye movements with near-paralysis of the body
  4. High-amplitude, slow waves Correct answer.

Explanation

Deep sleep, often called slow-wave sleep, shows high-amplitude, low-frequency brain activity. This pattern reflects synchronised firing across large areas of the cortex.

Question 40Unit 1

A witness recalls a robbery but confidently adds details that were later shown to be inaccurate. Which concept best explains this?

  1. Selective attention
  2. Reconstructive memory errors Correct answer.
  3. Sensory adaptation
  4. Classical conditioning

Explanation

Memory is reconstructive, so recall can blend stored information with later suggestions, producing confident but false details. This is a well-documented source of eyewitness error.

Question 41Unit 1

Which measure best reduces experimenter bias in a study where the researcher interacts with participants?

  1. Using a double-blind procedure Correct answer.
  2. Standardising the instructions given to participants
  3. Randomly assigning participants to groups
  4. Increasing the sample size

Explanation

In a double-blind procedure neither participants nor the interacting researcher know who received which condition, so expectations cannot shape results. This directly targets experimenter bias.

Question 42Unit 1

A patient has damage to Broca's area. Which difficulty is most likely?

  1. Understanding spoken words
  2. Maintaining balance while walking
  3. Recognising familiar faces
  4. Producing fluent speech Correct answer.

Explanation

Broca's area in the frontal lobe supports speech production, so damage typically causes slow, effortful speech. Comprehension is usually relatively preserved.

Question 43Unit 1

A questionnaire asks participants to rate their stress from 1 to 10. What type of data does this produce?

  1. Quantitative physiological data
  2. Qualitative nominal data
  3. Qualitative observational data
  4. Quantitative ordinal data Correct answer.

Explanation

A numerical rating scale produces quantitative data, and because the numbers represent ranked levels rather than precise equal intervals, they are ordinal. The measure comes from self-report rather than observation or physiology.

Question 44Unit 1

A researcher finds that people who sleep more report lower anxiety. Which conclusion is justified from this correlation alone?

  1. More sleep causes lower anxiety
  2. Lower anxiety causes longer sleep
  3. A third variable cannot be involved
  4. Sleep and anxiety are associated but causation is unclear Correct answer.

Explanation

Correlational data show that two variables vary together but cannot establish which causes which, or rule out other influences. Causal claims require controlled manipulation.

Question 45Unit 1

A student is absorbed in a difficult puzzle and does not notice a clock chiming nearby. Which concept best explains this?

  1. Selective attention Correct answer.
  2. Depth perception
  3. Perceptual constancy
  4. Classical conditioning

Explanation

Selective attention filters incoming information so that task-relevant signals are processed while irrelevant ones are largely ignored. The unnoticed chime reflects this filtering.

Question 46Unit 1

A person's left visual field is briefly shown a picture of a key. Their right hand is then asked to pick the matching object from a set. Which outcome is most consistent with split-brain research?

  1. They can name the object but cannot select it
  2. They can name the object easily
  3. They cannot select the object or name it
  4. They can select the correct object but cannot name it Correct answer.

Explanation

Information from the left visual field reaches the right hemisphere, which in most people lacks the speech centres needed for naming. The right hemisphere can still guide the left hand to select the matching object.

Question 47Unit 1

A participant in a sleep study is woken during REM sleep and reports vivid, story-like experiences. Which explanation best accounts for this?

  1. Dream reports are random confabulations
  2. Dreams occur only during the first sleep cycle
  3. REM sleep is linked to heightened dream recall Correct answer.
  4. Deep sleep produces the most vivid dreams

Explanation

Awakening people during REM sleep frequently yields detailed dream reports, suggesting REM is strongly associated with vivid dreaming. The narrative quality reflects cortical activity during this stage.

Question 48Unit 1

A researcher claims a new program improves concentration because students who volunteered for it scored higher than students who did not. Which flaw most seriously weakens this claim?

  1. The sample was self-selected rather than randomly assigned Correct answer.
  2. The program lasted several weeks
  3. The researcher recorded scores numerically
  4. The dependent variable was measured with a test

Explanation

Volunteers may differ from non-volunteers in motivation or ability, so group differences cannot be attributed to the program. Random assignment is needed to make the groups comparable.

Question 49Unit 1

Repeated stimulation of a neural pathway produces a lasting increase in synaptic strength, while an unused pathway weakens. Which principle does this illustrate?

  1. All-or-none firing of individual neurons
  2. Use it or lose it, reflecting activity-dependent plasticity Correct answer.
  3. One-way conduction across a reflex arc
  4. Fixed localisation of function after childhood

Explanation

Synaptic connections strengthen with use and weaken without it, which is the essence of activity-dependent plasticity. This allows the nervous system to adapt to experience across the lifespan.

Question 50Unit 1

A study finds that a drug reduces anxiety in a sample, but participants were told the drug was powerful and the researchers knew who received it. Which combination of biases is most likely to inflate the apparent effect?

  1. Random error and measurement error
  2. Sampling bias and attrition
  3. Ceiling effects and floor effects
  4. Placebo effects and experimenter bias Correct answer.

Explanation

Participants' expectations can produce real symptom change through placebo effects, while researchers who know the condition may unintentionally influence results. A double-blind design with a control group addresses both problems.