Birth Control Pills: This are prescription pills taken daily that reduce the chance of a woman becoming pregnant.
Condom: A latex covering for the penis to prevent sperm from entering the vagina.
Diaphram: A latex disk placed inside the vagina to prevent sperm from reaching the uterus.
Rhythm Method: The couple plans to abstain from (avoid) sexual intercourse during one week of each menstrual cycle when the woman is most likely to get pregnant.
Withdrawal: The man says he will remove his penis from the vagina before orgasm.
Length of Time
The length of time that the methods of birth control wil be used in items presented will be:
1 Year, 2 Years, 5 Years, 10 Years, 20 Years.
The woman in the scenarios will be starting at 21 years of age.
The probability of at least one failure (at least one unplanned pregnancy) increases with the time period during which the contraception is used.
Your task is to estimate the percentage of women who you think would have at least one contraceptive failure (at least one unplanned pregnancy) with the stated birth control method in the given period of time. Please type in the box a number from 0 to 100, indicating the percentage of women using this method who would have at least one unplanned pregnancy.
Example: If you believe the chance of an unplanned pregnancy using some method for 10 years would be 50 percent, you would type 50. (Please DO NOT type the % sign in the boxes).