A portion of the population chosen to be used in a research study is Best described as:

Question

BlackTom AI · Accepted Answer

When considering the question, we start by identifying the key term in the prompt: a portion of the population selected for a study.
Option 1: Convenience. This describes a sampling method where samples are chosen for their ease of access rather than representativeness. It does not define the general term for the portion of the population used in research, though it is one possible sampling method.
Option 2: Random. This describes a sampling technique aiming for each member of the population to have an equal chance of being included; it is not the generic descriptor for the portion of population used, but rather a method chosen to achieve representativeness.
Option 3: a Sample. This is the standard term used to refer to the portion of the population selected for study. It directly answers the question as the generic description of what is used in research.
Option 4: Non-randomized. This indicates a sampling approach that does not employ random selection, which is a characteristic of some sampling designs but not the general label for the portion of the population studied.
Option 5: Pilot. A pilot refers to a preliminary study or a small-scale version of the main study, not to the portion of the population selected for the main research analysis.
In summary, the term that best fits the description provided in the question is the one that names the selected subset of the population for study, rather than a specific sampling method or study phase.

A portion of the population chosen to be used in a research study is Best described as:单项选择题

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