Hunt, barnett, and branch (1971) showed that % of the individuals treated for alcohol, tobacco, or heroin abuse in abstinence-oriented programs had returned to their primary substance use three months after treatment.

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u