AQA GCSE Combined Science Trilogy · 8464
Specification 4.5.3.4 · Paper 2
Revise: Contraception MethodsPerfect use means correct, consistent use. Typical use includes everyday mistakes, such as forgetting a pill or a condom coming off.
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GCSE Combined Science · key term
Contraceptive effectiveness when a method is used correctly and consistently.
Used by AQA and Edexcel
Specification 4.5.3.4 · Paper 2
Revise: Contraception MethodsPerfect use means correct, consistent use. Typical use includes everyday mistakes, such as forgetting a pill or a condom coming off.
Paper 1, Paper 2
The effectiveness of a contraceptive method when it is used correctly every time.
Revise: Controlling Fertility: Contraception and Assisted ReproductionPerfect use means using a method correctly every time. Typical use includes everyday mistakes, such as forgetting a pill or a condom slipping off. This distinction explains why a method can work very well biologically but be less effective in everyday life.
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