Psychology 9990/12 October/November 2025: question paper and mark scheme
Cambridge AS & A Level Psychology (9990), Paper 1 Approaches, Issues and Debates, October/November 2025. Read both free below, or download them. Done the paper? Get it marked by AI against this mark scheme.
From the study by Milgram (obedience):
(a) State the number of participants who pressed the maximum shock level switch (450 volts).
…… [1]
(b) One example of a sign of tension shown by the participants in this study was nervous laughter.
Identify two other signs of tension shown by the participants.
1 ……
2 ……
[2]
(c) Before the study, fourteen psychology students from Yale University were told about the procedure of the study.
Outline what these students were asked to predict about the study.
…… [2]
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Mark scheme
1(a) From the study by Milgram (obedience): 1 If more than one response given, take first one only.
State the number of participants who pressed the
maximum shock level switch (450 volts).
1 mark for correct number.
26.
1(b) One example of a sign of tension shown by the 2 List is definitive.
participants in this study was nervous laughter.
Accept ‘verbal comments’/they asked to stop.
Identify two other signs of tension shown by
participants. Do not accept shouting or nervous laughter.
1 mark per correct identification.
Sweat(ing).
Tremble/trembling/shaking/shivering.
Stuttering.
Biting lip.
Groaning.
Dig nails into flesh.
Smiling.
Violent convulsion/seizure.
1(c) Before the study, fourteen psychology students from 2 List is definitive.
Yale University were told about the procedure of the
study. Do credit ‘asked at which voltage they would stop’ for
marking point 2.
Outline what these students were asked to predict about
the study. Do credit answers like ‘asked to predict if people would harm
another to obey authority’ etc. for 1 mark.
1 mark per correct point.
Do not credit any findings of these predictions
They were asked to reflect carefully/predict the behaviour of
100 (hypothetical) people.
They had to plot the distribution of obedience based on the
characteristics of the sample.
They were asked what percentage of participants/how many
participants would press the 450-volt switch.
From the study by Bandura et al. (aggression):
(a) One conclusion was that boys are more likely to imitate aggressive behaviour than girls.
Outline one other conclusion from this study.
…… [2]
(b) Outline one weakness of this study in relation to the sample of participants.
…… [2]
Mark scheme
2(a) From the study by Bandura et al. (aggression): 2 Do not credit the conclusion already presented in the
question.
One conclusion was that boys are more likely to imitate
aggressive behaviour than girls. No mention of aggression = 1 mark max.
Outline one other conclusion from this study. For sex differences conclusions based on type of
aggression, the only creditworthy response is about girls and
2 marks full/detailed conclusion. verbal aggression for 1 mark max.
1 mark partial/brief conclusion
Comparisons to no-model or non-aggressive model = 1
Witnessing an aggressive act is enough to produce mark max as part result.
aggression in the person who observed it (2 marks).
Children will reproduce aggressive behaviours in the Mention of ‘group’ or ‘condition’ = 0 marks (result).
absence of an observed model/adult (2 marks)
Children are more likely to imitate the aggression of a same
sex model (2 marks)
Girls are more likely to imitate verbal aggression (1 mark)
Children will imitate aggression (1 mark)
Boys showed more gun aggression (0 marks: result).
There are other creditworthy conclusions.
2(b) Outline one weakness of this study in relation to the 2 Accept arguments linked to the ethics of using children for 1
sample of participants. mark max.
1 mark for identifying the weakness related to the sample. Do not credit ‘cannot generalise to adults’.
1 mark for outlining the weakness with an example from the
study. Do award the identification of ‘low generalisability’ even if
the example is incorrect.
e.g.,
Difficult to generalise from the sample (1 mark: Accept ‘cannot be applied’ and ‘not representative’ as ID
identification). The sample was only from one nursery so this marks.
could make it difficult to generalise as the sample may not
fully represent children in other parts of the world/different
nurseries as it was a university nursery (1 mark: outlining).
There are other creditworthy sample-related weaknesses.
In the study by Piliavin et al. (subway Samaritans), there were:
• models
• victims (acting drunk or acting ill).
(a) Identify two features of the models used in this study.
1 ……
2 ……
[2]
(b) Outline one result in relation to the victim acting drunk before any model gave help.
…… [2]
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Mark scheme
3(a) In the study by Piliavin et al. (subway Samaritans), there 2 List is definitive.
were:
• models Ignore reference to the victims.
• victims (acting drunk or acting ill)
Do credit n=4
Identify two features of the models used in this study.
Do accept ‘boys’, ‘students’ and ‘Caucasian’
1 mark per correct feature.
Do not accept ‘adults’
White.
Male.
Age 24-29.
Wore informal/casual clothes.
3(b) Outline one result in relation to the victim acting drunk 2 If candidate compares drunk and ill victims = 1 mark max.
before any model gave help.
“Drunk received (spontaneous) help on 19 out of 38 trials =
2 marks for the result with a meaningful comparison. 2 marks.
1 mark for result with no meaningful comparison.
Responses do not need to mention ‘drunk’ to get credit as
e.g., 2 marks this is implied from the question.
A white drunk victim was helped more than a black drunk
victim. Ignore references to speed of helping.
More people left the critical area when the drunk victim was
white compared to when the drunk victim was black.
More comments were made when the drunk victim was
white compared to when the drunk victim was black.
Same-race helping was seen more than other-race helping.
e.g., 1 mark
On a higher percentage of trials, a white drunk victim was
helped.
More people left the critical area when the drunk victim was
white.
More likely to help same-race (drunk) victim.
Describe how Hassett et al. followed ethical guidelines in relation to animals in their study about monkey toy preferences.
…… [4]
Mark scheme
4 Describe how Hassett et al. followed ethical guidelines 4 Ignore reference to ethical guidelines for human participants.
in relation to animals in their study about monkey toy
preferences. Go with the intention of the candidate.
1 mark per correct point up to 4 marks Relevant guidelines are:
1 mark available for identifying a relevant ethical guideline.
Harm/distress
e.g., Species
They followed the ethical guideline of housing (1 mark: Number
identification) as the monkeys were socially housed in Housing
accordance with them being a social species (1 mark). Reward/deprivation
(There was no deprivation of) the monkeys as water was
continuously available/fed regularly on appropriate Tick-e = relevant guideline identified
diet/given access to food and water.
The monkeys had a 25 m x 25 m outdoor enclosure (to roam The candidate can score 4 marks even if a guideline is not
around in). explicitly named.
The indoor enclosure was temperature-controlled (for
comfort).
They followed the guideline stipulated by NIH with
environmental enrichment so again no deprivation.
There was minimum harm as the toys chosen were not
dangerous.
They followed the guideline for species, and the purpose of
the study was to study organisms close to humans on the
evolutionary scale (used rhesus monkeys).
No direct observations/observed via cameras to reduce
distress.
The monkeys were kept/tested in an area they were familiar
with (to reduce stress).
There are other creditworthy responses.
From the study by Hölzel et al. (mindfulness and brain scans):
(a) ‘Acting with awareness’ was a factor measured by the ‘Five Facet Mindfulness Questionnaire’.
Outline what is meant by ‘acting with awareness’ in this study.
…… [2]
(b) Outline one strength of the Five Facet Mindfulness Questionnaire as used in this study.
…… [2]
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Mark scheme
5(a) From the study by Hölzel et al. (mindfulness and brain 2 For 2 marks there needs to be mention of:
scans):
Conscious focus
‘Acting with awareness’ was a factor measured by the (opposed) to unconscious.
‘Five Facet Mindfulness Questionnaire’.
Do not credit ‘being aware of….’
Outline what is meant by ‘acting with awareness’ in this
study. ‘Know what are doing’/thinking or equivalent = 1 mark (take
as conscious/current).
2 marks for full outline.
1 mark for partial outline.
This is focusing on current behaviour/actions instead of
behaving automatically (2 marks).
Focusing on current behaviour (1 mark).
5(b) Outline one strength of the Five Facet Mindfulness 2 Do not credit general strengths about the study by Hölzel. It
Questionnaire as used in this study. must be about the FFMQ.
1 mark for identifying the strength. Do not credit anything being ‘easier’
1 mark for outlining the strength via example from the study.
e.g.,
The FFMQ generated quantitative data which allowed for
statistical comparisons (1 mark: identifying), therefore, the
scores could be compared before and after MBSR training
to see any changes/effects of the programme (1 mark:
example).
The FFMQ is a standardised test for mindfulness (1 mark:
identifying).
There are other creditworthy strengths, including used as a
baseline measure, used in other studies (reliable).
(a) In the background to their study, Perry et al. outlined how biological factors affect interpersonal distance (personal space) preferences.
Outline how biological factors affect interpersonal distance (personal space) preferences.
…… [3]
(b) Two friends, Alexandre and Derek are discussing the ethics of the study by Perry et al.
(personal space).
Alexandre says the study is ethical, but Derek says it is not ethical.
Outline one reason why Alexandre is correct and one reason why Derek is correct.
Alexandre ……
Derek ……
[4]
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Mark scheme
6(a) In the background to their study, Perry et al. outlined 3 Do not credit procedure or findings from the study by Perry.
how biological factors affect interpersonal distance
(personal space) preferences. There is no identification mark available.
Outline how biological factors affect interpersonal Do accept ‘healthy amygdala may prefer further
distance (personal space) preferences. interpersonal distance’
1 mark per correct point.
Oxytocin (may) plays a role in personal
space/empathy/social bonding/social salience etc.
Lesions in the amygdala appear to reduce the need for
personal space.
Amygdala activity in healthy individuals is correlated with
feeling uncomfortable at close distances.
Amygdala activation is affected by levels of oxytocin.
In some contexts, oxytocin promotes any aversion to
risk/envy/lack of cooperation.
Oxytocin can also affect the personal space needed
between self and someone perceived as attractive.
There are other creditworthy responses.
6(b) Two friends, Alexandre and Derek are discussing the 4 If the candidate mixes up Alexandre and Derek (e.g. says
ethics of the study by Perry et al. (personal space). Derek but gives an ethical based answer) then max 1 per
person and annotate with a ?
Alexandre says the study is ethical, but Derek says it is
not ethical. Do not credit deception (including ID mark) for the following
arguments:
Outline one reason why Alexandre is correct and one
reason why Derek is correct. 1. Not knowing whether they were being given OT or
placebo
For each reason: 2. The idea that they never had the conversation in Exp2
1 mark for evidence/relevant ethical guideline and 1 mark without reference to this being distressing
for explanation.
6(b) e.g., Alexandre So, only award the deception ID mark if the argument is
Written consent was taken from the participants (1 mark: linked to feeling stressed, otherwise = 0
guideline). They knew the study would be about personal
space/knew they would have oxytocin (1 mark: explanation). If ethical guideline is the same for Alexandre and Derek,
The ethical committee at the Medical Centre/University then can only award the ID mark once. However, physical
approved the study as being ethical/required it (1 mark: and psychological harm can be awarded separately.
alternative explanation).
The task of watching someone get closer is minimising risk
(1 mark: guideline). They could press the spacebar to stop
the figure approaching more, protecting them from
psychological stress (1 mark: explanation).
e.g., Derek
In experiment 2 they were told they would be chatting with
another participant/ a computer would calculate an average
room for them and this might have been distressing (1 mark:
explanation). This never happened, so the Ps were
deceived (1 mark: guideline)
The act of intruding into someone’s personal space (even if
it was an animation) can still be stressful/harmful (1 mark:
guideline).
There was also no way of knowing if any participant would
react to oxytocin (1 mark: explanation) so there was
risk/potential physical harm involved (1 mark: guideline).
There are other creditworthy responses.
The debate about individual and situational explanations relates to the study by Dement and
Kleitman (sleep and dreams).
Outline what is meant by this debate, including one example from the individual explanation and one example from the situational explanation from the study by Dement and Kleitman.
…… [4]
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Mark scheme
7 The debate about individual and situational 4 Ignore tautological definitions, including “individual
explanations relates to the study by Dement and differences or individual factors”
Kleitman (sleep and dreams).
Example marks can only be awarded for Dement and
Outline what is meant by this debate, including one Kleitman’s study or related to sleep and dreaming in
example from the individual explanation and one general.
example from the situational explanation from the study
by Dement and Kleitman. Tick-e = example mark (go with the logic/intention of the
candidate).
1 mark for outlining individual explanation plus 1 mark for
example from Dement. Do not credit ‘different people have different dreams’ for the
1 mark for outlining situational explanation plus 1 mark for example mark for the individual explanation.
example from Dement.
e.g., individual
The individual side refers to behaviours from factors within
the person (dispositional) (1 mark).
All the dreams reported were unique, like throwing tomatoes
at each other, showing that a person’s individual personality
is seen in their dreams (1 mark).
e.g., situational
The situational side refers to behaviour from factors in the
external environment (1 mark).
The participants were sleeping in a laboratory with an EEG
attached to them so this scenario may have affected their
ability to recall dreams/estimated time in REM (1 mark).
There are other creditworthy examples.
Carole, a language teacher, has noticed that her students have difficulty concentrating when listening to a recording of people talking in a second language. Her students have difficulty recalling the information from this recording. Carole needs to help her students and has come to you for advice.
Using your knowledge of the study by Andrade (doodling):
(a) Outline the advice you would give to Carole.
…… [4]
(b) Explain one reason for one piece of advice you outlined in part (a).
…… [2]
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Section B
Answer all questions.
Mark scheme
8(a) Carole, a language teacher, has noticed that her 4 No credit for justifying advice as this is not what the question
students have difficulty concentrating when listening to is about.
a recording of people talking in a second language. Her
students have difficulty recalling the information from Do not credit the following:
this recording. Carole needs to help her students and
has come to you for advice. ‘Doodling’, ‘doodle’ or ‘secondary task’ by itself.
Scribbling.
Using your knowledge of the study by Andrade Give them a monotonous recording.
(doodling): Give them a surprise test.
Allow them to draw their own doodles.
Outline the advice you would give to Carole.
Ask them to start shading in the shapes = 2 marks
1 mark per piece of advice clearly based on the study by
Andrade. A different explicitly named secondary task can be awarded
1 mark (e.g., fidget toy).
e.g.
Carole could give each student a piece of paper.
That has shapes on it
They can colour/shade them in.
There should be a margin to write notes/target information.
Tell the students not to worry about being neat/their
neatness (at shading).
She could ask them to focus on specific pieces of
information in the listening task.
She must tell them that there will be a test after the listening
tasks.
She needs to tell them not to engage in free
doodling/drawing their own doodles.
Let them listen in a (dull) quiet room
There are other creditworthy pieces of advice.
8(b) Explain one reason for one piece of advice you outlined 2 The response must be linked to something mentioned in
in part (a). Q8(a).
2 marks for full/detailed reason Only credit advice chosen by the candidate that is based on
1 mark for partial/brief reason the study by Andrade.
e.g., 2 marks
One result from the study showed that the group who
doodled whilst listening to a dull telephone recording, could
recall more (monitored) information/(incidental) information,
showing that doodling is good for concentration/recall.
Doodling could avoid/avoids daydreaming to help
concentration/aiding memory recall.
A dull quiet room will not have other sounds so
concentration should be better.
Doodling can improve concentration/attention which helps
improve memory recall.
e.g., 1 mark
In the study by Andrade, doodling aided memory recall.
Doodling could avoid/avoids daydreaming.
Doodling can aid concentration/information
processing/attention
A dull/quiet room will allow for better concentration.
From the study by Saavedra and Silverman (button phobia):
(a) Describe the participant used in this study.
…… [4]
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(b) Explain one similarity and one difference between the study by Saavedra and Silverman
(button phobia) and the study by Bandura et al. (aggression). Do not refer to sampling in your answer.
Similarity ……
Difference ……
[8]
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Mark scheme
9(a) From the study by Saavedra and Silverman (button 4 List is definitive.
phobia):
Do not credit he had a phobia of buttons as this is in the
Describe the participant used in this study. question.
1 mark per correct point made.
(one) boy/male.
9-year-old.
Hispanic/American.
He was presented (by his mum) to a Child Anxiety and
Phobic Program.
He did not meet the criteria for OCD.
He did meet the criteria (DSM-IV) for a phobia.
He had experienced a bowl of buttons falling on him (at
school).
Had his phobia at 5 years of age/4 years prior to study.
9(b) Explain one similarity and one difference between the 8 Award L1-L4 for the similarity
study by Saavedra and Silverman (button phobia) and Award L1-L4 for the difference
the study by Bandura et al. (aggression). Do not refer to
sampling in your answer. For Level 4 there must be some attempt at explaining the
similarity/difference.
Use the marking grid below.
4 marks for the similarity, e.g., quantitative data collection, For similarity:
both about learnt behaviours.
4 marks for the difference, e.g., experimental vs. non- Both used children = L1
experimental, sample, learning theory focused on. Both from the learning approach/follow learning assumptions
= L1
9(b) e.g., difference For difference:
e.g., 4 marks
The two studies focus on a different theory from the learning Different aims = L1
approach. Bandura focused on social learning involving Quantitative vs qualitative = L2 max
imitation and observation. Saavedra focused on operant
conditioning/classical conditioning whereby the boy got If the candidate does not identify the similarity or difference
rewarded by his mum during the treatment of his button explicitly so it reads like a description of both studies = L1
phobia. So, Bandura is about vicarious learning, but
Saavedra is about direct ‘hands-on’ experiences
(explanation).
e.g., 3 marks
The two studies focus on a different theory from the learning
approach. Bandura focused on social learning involving
imitation and observation. Saavedra focused on operant
conditioning/classical conditioning.
e.g., 2 marks
The two studies focus on a different theory from the learning
approach. Bandura focused on social learning involving
imitation and observation.
e.g., 1 mark
The two studies focus on a different theory from the learning
approach.
9(b)
Mark/ Description
Level
4 The similarity/difference is well explained using
both studies as examples.
3 The similarity/difference is well explained but only
one study is used as an example OR
both studies are used briefly.
2 The similarity/difference is brief with an attempt at
using at least one study as an example OR
The similarity/difference is well explained but
there is no study evidence.
1 The similarity/difference is brief with no attempt at
using the studies as examples.
0 No creditable response.
Evaluate the study by Pozzulo et al. (line-ups) in terms of two strengths and two weaknesses.
At least one of your evaluation points must be about ecological validity.
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…… [10]
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12
Mark scheme
10 Evaluate the study by Pozzulo et al. (line-ups) in terms 10
of two strengths and two weaknesses. At least one of
your evaluation points must be about ecological
validity.
Strengths include reliability (standardisation), quantitative
data, validity, ethics.
Weaknesses include ecological validity, ethics,
generalisability, quantitative data.
10 Example: in detail
The procedure was standardised so could be replicated. For
example, for every participant the instructions for the line-up
identification process were the same, and we know that the
cartoon targets were Dora and Diego. Therefore, the study
can be tested for reliability.
Example: brief but in context
The sample came from a participant pool at Eastern Ontario
University so they might not represent other people as they
could be more motivated to participate
Example: no context
There were controls in place so they could establish cause
and effect/has internal validity
Level Description Mark
5 • Very good evaluation including the 9–10
named issue.
• Thoroughly addresses both
strengths and both weaknesses in
detail.
• Selection of evidence is very
thorough and effective.
4 • Good evaluation including the 7–8
named issue.
• Addresses strengths and
weaknesses but may include three
or four points. The majority of the
points are in depth.
• Selection of evidence is thorough
and effective.
10
Level Description Mark
3 • Mostly appropriate evaluation but 5–6
may not include the named issue.
• Addresses either two strengths or
two weaknesses in detail or one of
each in detail or all four briefly.
• Selection of evidence is mostly
effective.
2 • Weak evaluation and may not 3–4
include the named issue.
• Addresses either a strength or a
weakness. Evaluation points are
brief.
• Some points may have no context.
• Selection of evidence is sometimes
appropriate.
1 • Little or no evaluation. 1–2
• Discussion of strengths and
weaknesses is absent or superficial.
• Selection of evidence is limited.
0 No creditable response.
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On this page, free: the mark scheme for AS & A Level Psychology 9990/12, October/November 2025 (9990_w25_ms_12), and the question paper (9990_w25_qp_12), to read or download, with each question's marking points written out underneath.
How many marks is 9990/12 out of?+
Psychology 9990/12 for October/November 2025 is out of 60 marks, with 1 hour 30 minutes to answer it.
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Yes. Upload your answers to 9990/12/O/N/25 as a PDF or photos, and CIE Buddy marks every question against this paper's official mark scheme, using Cambridge's marking rules. You get your score, each lost mark explained on your own script, and the topics to revise. It's a guide, not an official Cambridge grade.