Biology A-Level
Reliability and bias in sampling
What Reliability and bias in sampling means in Biology A-Level, as defined for OCR.
Definition of Reliability and bias in sampling
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Read the wording for your board, then hide it and explain Reliability and bias in sampling in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Random sampling reduces bias, and using more quadrats or a larger sample improves reliability of the estimates.
Topics that use Reliability and bias in 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 Reliability and bias in sampling in the exam
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