Perfect use

Definition

Effectiveness when a contraceptive is used correctly and consistently every time.

Used by Edexcel

Specification 7.7 · Paper 2

The implant is over 99% effective with both typical and perfect use. Because it works for a long time after being fitted, its success does not depend on remembering a tablet every day.
Revise: Evaluating Contraception

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GCSE Biology · key term

Effectiveness when a contraceptive is used correctly and consistently every time.

Used by Edexcel

Specification 7.7 · Paper 2

The implant is over 99% effective with both typical and perfect use. Because it works for a long time after being fitted, its success does not depend on remembering a tablet every day.
Revise: Evaluating Contraception

Create a free account to read GCSE Biology revision notes for your exam board and track your progress.