Key term
AQA A-Level Psychology 7182
Social Influence
Memory
Attachment
Topic overviewCaregiver-infant interactions: reciprocity and interactional synchronySchaffer's stages of attachmentMultiple attachments and the role of the fatherAnimal studies of attachmentExplanations of attachmentAinsworth's Strange Situation and types of attachmentBowlby's theory of maternal deprivation and effects of institutionalisationInfluence of early attachment on relationshipsCultural variations in attachment
Approaches in Psychology
Biopsychology
Topic overviewDivisions of the nervous systemStructure and function of neurons and synaptic transmissionThe endocrine systemThe fight or flight responseWays of studying the brainLocalisation of function and hemispheric lateralisationPlasticity and functional recovery of the brain after traumaBiological rhythms: circadian, infradian and ultradian
Clinical Psychology and Mental Health
Research Methods
Scientific Processes
Topic overviewAims and hypothesesSamplingPilot studiesExperimental designsObservational designQuestionnaire construction and design of interviewsVariablesControlDemand characteristics and investigator effectsEthicsPeer reviewImplications of psychological research for the economyReliabilityValidityFeatures of scienceReporting psychological investigations
Quantitative and Qualitative Data
Topic overviewQuantitative and qualitative data; the distinction between qualitative and quantitative data collection techniquesPrimary and secondary data, including meta-analysisDescriptive statistics: measures of central tendency and measures of dispersionPresentation and display of quantitative data: graphs, tables, scattergrams, bar chartsDistributions: normal and skewed distributionsIntroduction to statistical testing; the sign test
Data Handling and Analysis
Inferential Testing
Issues and Debates in Psychology
RelationshipsOption 1
GenderOption 1
Cognition and DevelopmentOption 1
SchizophreniaOption 2
Eating BehaviourOption 2
StressOption 2
AggressionOption 3
Forensic PsychologyOption 3
AddictionOption 3
Explanations for Nicotine AddictionOption 3
Data Handling and Analysis
Distributions
- 3 things to know
- Paper 2
Overview
Normal, positively skewed and negatively skewed distributions, and where the mean, median and mode fall in each.
What you need to know
Answer each one before you reveal it.
Your recallNot started
Key term
Where do the mean, median and mode fall in a positively skewed distribution?
Key term
Describe a negatively skewed distribution.
Questions from this subtopic
Each one with the model answer underneath.
- 1
What is the shape of a normal distribution?
Model answer
A symmetrical, bell-shaped curve.
- 2
In a normal distribution, where do the mean, median and mode fall in relation to each other?
Model answer
They all coincide at the same central point.
- 3
Describe the symmetry of a normal distribution.
Model answer
A normal distribution is symmetrical, meaning both halves of the curve are mirror images of each other around the central point.
- 4
In a normal distribution, where do most scores tend to fall?
Model answer
Most scores cluster around the central point.
- 5
What happens to the frequency of scores at the extremes of a normal distribution?
Model answer
Fewer scores occur at the extremes compared to the centre.
- 6
In a positively skewed distribution, what is the order of the mode, median and mean from lowest to highest?
Model answer
Mode < median < mean.
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