Examlex
In the bicarbonate buffer pair,NaHCO₃ acts as the weak acid.
Representative Sample
A subset of a population carefully chosen to accurately reflect the characteristics of the larger group for the purposes of research or analysis.
Probability Sample
A sampling method in which every member of the population has a known and non-zero chance of being selected for the study, allowing for generalized conclusions.
Voluntary Response Sample
A sampling method where participants self-select to be a part of a study, often leading to biased results due to the non-random nature of the sample choice.
Researcher Bias
Researcher bias refers to a systematic error introduced into sampling or testing by selecting or encouraging one outcome or answer over others, which can affect the validity and reliability of research findings.
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