Biology A-Level
Non-random sampling
What Non-random sampling means in Biology A-Level, as defined for OCR.
Definition of Non-random sampling
Check what you remember
Read the wording for your board, then hide it and explain Non-random sampling in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Deliberate sampling where a belt or line transect follows a chosen gradient, and stratified or opportunistic placement targets selected zones.
Topics that use Non-random sampling
- Biodiversity (OCR A-Level)
Related terms
- Aesthetic reasons for maintaining biodiversity
- Climate change
- Distinguishing reasons from conservation methods
- Ecological reasons for maintaining biodiversity
- Economic reasons for maintaining biodiversity
- Estimating species richness and abundance
- Ex situ conservation methods
- genetic diversity
Using Non-random sampling in the exam
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