Skip to content
Toggle sidebar
Pricing
Log in
Sign up free
Loading…
Home
Subjects
Past papers
Key terms
Pricing
My courses
Select your courses
Loading…
Home
More
Statistics
AQA GCSE Statistics
Data Collection and Sourcing
AQA GCSE Statistics · 8382 · 3.2
Data Collection and Sourcing
Both papers · 17 notes
Recognize the opportunities, constraints, and analytical implications of obtaining appropriate data.
Evaluate the design of primary data collection techniques and the use of reference sources for secondary data to ensure unbiased research.
Types of Data
3.2.1
Data Terminology and Classification
3.2.2
Data Grouping and Categorization
3.2.3
Explanatory and Response Variables
Data Sources and Reliability
3.2.4
Primary and Secondary Data
3.2.5
Data Collection Methods
3.2.6
Reliability and Validity
3.2.7
Bias and Data Distortion
Population and Sampling
3.2.8
Populations, Sample Frames, and Samples
3.2.9
Defining Populations
3.2.10
Judgement and Opportunity Sampling
3.2.11
Random, Systematic, and Quota Sampling
3.2.12
Simple Random Sampling Techniques
3.2.13
Stratification Techniques
Data Collection Planning
3.2.14
Key Considerations in Data Collection
Managing Data Problems
3.2.15
Handling Missing and Incorrect Data
3.2.16
Data Cleaning Techniques
3.2.17
Extraneous Variables and Control Groups
Practise with past papers
Key terms & definitions
