anchor: Jurors are kept off-balance--and in need of additional guidance from the bench--by the judge, who instructs them to convict if the defendant is guilty beyond a reasonable doubt, without telling them whether a reasonable doubt consists of a 1 percent risk of error, a 5 percent risk of error, or a 10 percent risk of error.
positive: The judge does not give the jurors all the details about errors.
negative: The judge explains every detail about error to the jurors.