In Stratified Random Sampling, the Population Is First Divided Up

question 116

True/False

In stratified random sampling, the population is first divided up into mutually exclusive and collectively exhaustive groups, called strata. A stratified sample includes randomly selected observations from each stratum, which are proportional to the stratum's size.

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Definitions:

Closed-ended Research

Research methodology that uses predefined responses to questions, allowing for easy quantification of data.

Closed-ended Research

A research approach that uses structured questions with predetermined response options in surveys or questionnaires.

Open-ended Research

A research approach that allows for the collection of detailed, qualitative data without limiting respondents to predetermined answers.

Explanation

Providing reasons for how or why something occurs, often involves detailing cause-and-effect relationships.