Chemistry A-Level
Direction of error
What Direction of error means in Chemistry A-Level, as defined for OCR.
Definition of Direction of error
Check what you remember
Read the wording for your board, then hide it and explain Direction of error in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The way a named limitation affects the measured quantity, where it is known, such as an enthalpy change being less exothermic than the true value.
Topics that use Direction of error
- Evaluation (OCR A-Level)
Related terms
- Anomaly
- Apparatus uncertainty
- Concordant
- Justifying exclusion
- Accuracy
- Limitation
- Percentage error
- Precision
Using Direction of error in the exam
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