Examlex
According to the U.S. Census Bureau's 2008 update, when will the world's population reach 9 billion?
Collecting Data
The process of gathering and measuring information on variables of interest in an systematic fashion, enabling one to answer stated research questions, test hypotheses, and evaluate outcomes.
Empirical Evidence
Information acquired by observation or experimentation that is used to confirm the validity of a hypothesis or theory.
Logical
Pertaining to reasoning or the application of strict principles of validity in reasoning, often used in the context of logical deduction or argumentation.
Unobserved
Not seen or noticed, often referring to variables or factors that have not been measured or accounted for in a study or experiment.
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