Examlex
By comparing a sample's isotope ratio it is possible to see that after 6300 years, the original radioisotope had decayed to 25% of its original value. Estimate the half life of that particular isotope.
Social Desirability Bias
The tendency of respondents to answer questions in a manner that will be viewed favorably by others, potentially skewing research results.
Control Group
In experimental research, a group of subjects that does not receive the experimental treatment or intervention, used as a benchmark to measure how other tested subjects do.
High Calorie
Describes food or drink that has a high energy content per serving, typically associated with increased fat or sugar content.
Normal Chow
A standard or control diet used in laboratory experiments with animals.
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