Data Types, Displays and Descriptive Statistics
Select, calculate and interpret the DfE mathematical requirements within research-methods contexts.
How to study for GCSE Psychology
Confirm the exact board route, connect theories to prescribed studies, apply mechanisms to unfamiliar contexts, evaluate evidence and practise the current paper design.
Core concepts
Concept 1
data classification
Exam cue: Distinguish qualitative/quantitative and primary/secondary data, then choose mean, median, mode, range, frequency table, bar chart, histogram, scatter diagram or graph to fit the data.
Concept 2
descriptive statistics
Exam cue: Show working, preserve sensible precision, label displays and interpret the result in the investigation rather than reporting a number alone.
Concept 3
tables and graphs
Exam cue: The 10% mathematics minimum is qualification-wide and always assessed within research methods, not a promised weight for each paper or topic.
Targeted study blocks
Common psychology core
Build the transferable conceptual model
Distinguish qualitative/quantitative and primary/secondary data, then choose mean, median, mode, range, frequency table, bar chart, histogram, scatter diagram or graph to fit the data.
Evidence and application
Connect claims to method, findings and context
Show working, preserve sensible precision, label displays and interpret the result in the investigation rather than reporting a number alone.
Current-route boundary
Apply only the live specification detail
The 10% mathematics minimum is qualification-wide and always assessed within research methods, not a promised weight for each paper or topic.
Risk pitfalls and guardrails
Choosing a mean or graph by habit without checking scale, distribution, outliers and data type.
Guardrail: Do not mix board routes, treat one study as proof, diagnose a person or append evaluation that does not change the answer to the question.
Describing a theory or study without applying, analysing or evaluating it when the command requires more.
Guardrail: Do not mix board routes, treat one study as proof, diagnose a person or append evaluation that does not change the answer to the question.
Importing a named theory, core study, diagnosis rule or paper convention from another specification.
Guardrail: Do not mix board routes, treat one study as proof, diagnose a person or append evaluation that does not change the answer to the question.
Memory anchors
Mean
The sum of values divided by the number of values; sensitive to extreme scores.
Range
A simple dispersion measure found from the highest value minus the lowest.
Scatter diagram
A display of paired values used to inspect the direction and pattern of correlation.
Data Types, Displays and Descriptive Statistics: evidence check
Show working, preserve sensible precision, label displays and interpret the result in the investigation rather than reporting a number alone.
Data Types, Displays and Descriptive Statistics: route check
The 10% mathematics minimum is qualification-wide and always assessed within research methods, not a promised weight for each paper or topic.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
What are primary data?
What are secondary data?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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