Skip to content
Toggle Sidebar
Pricing
Loading…
Home
Subjects
Past papers
Key terms
Pricing
My courses
Select your courses
Loading…
Loading…
1d.02 Data reliability and validity — Edexcel Statistics 1ST0 | GradeGen
Home
More
Statistics
Edexcel GCSE Statistics
The collection of data
Collecting data
Data reliability and validity
Edexcel GCSE Statistics · 1ST0
Data reliability and validity
What you need to know
Understand the crucial concepts of reliability and validity in the context of collected data.
Explain data reliability as the extent to which repeated measurements consistently yield similar results under identical conditions.
Explain data validity as the extent to which a test or measurement accurately measures what it was originally intended to measure.
Revision notes
1
Data reliability and validity
2 key terms
Pro
Practise with past papers
Key terms & definitions
Previous subtopic
Data collection sources
Next subtopic
Minimising data distortion and bias
