Partitioning a Population into Hierarchical Groups or Levels,and Selecting a Sample

question 15

Multiple Choice

Partitioning a population into hierarchical groups or levels,and selecting a sample from each group or level is known as:

• A)simple random sampling.
• B)stratified sampling.
• C)systematic sampling.
• D)judgment sampling.

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Definitions:

Biological Clock

An innate mechanism that controls the physiological activities of an organism, such as sleep cycles, puberty, and aging.

Hypothalamus

A small but crucial part of the brain located below the thalamus, responsible for regulating many bodily functions including hunger, thirst, sleep, and emotions.

SAD

Seasonal Affective Disorder, a type of depression that occurs at a certain time of the year, usually in winter.

Depression

A common and serious medical illness that negatively affects how you feel, the way you think, and how you act, causing feelings of sadness or a loss of interest in activities once enjoyed.