Sampling and Population in Research

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What is the purpose of sampling in a research study?

To allow researchers to focus on a specific subgroup of the population
To provide a margin of error in the research results
To ensure that every member of the population is included in the study
To save time and money compared to conducting a complete census (correct)

What is an element in the context of sampling?

A mathematical term used in Slovin's Formula
A characteristic common to all members of a population
A type of probability sampling method
A member of a population who can provide information for the population (correct)

What is the definition of a population in the context of research?

The group of individuals that are usually selected for a sample
The total elements about which inferences can be made based on data gathered from a sample (correct)
A subgroup of individuals chosen for detailed study
The total members of a group that share common or similar characteristics

What does Slovin’s Formula help researchers calculate?

The number of elements required for a representative sample (C) Signup and view all the answers

What is the margin of error in research?

The range within which we expect the true value to lie based on sample results (B) Signup and view all the answers

What is the characteristic of simple random sampling?

It ensures that every member of the population has an equal chance of being selected (C) Signup and view all the answers

What is systematic random sampling?

Selecting every nth element from a list of elements for inclusion in the sample (B) Signup and view all the answers

What is cluster sampling used for?

Targeted respondents spread across a geographical location (B) Signup and view all the answers

What is convenience sampling?

Selecting samples that are available and capable of participating in a research study (B) Signup and view all the answers

What is purposive sampling also known as?

Judgmental or Subjective Sampling (C) Signup and view all the answers

How is stratified random sampling performed?

Dividing the population into mutually exclusive categories and then selecting samples from each category (D) Signup and view all the answers

What does snowball sampling involve?

Identifying a key informant who can then refer or identify another respondent for the study (C) Signup and view all the answers

What is quota sampling based on?

Gathering a representative sample from a group based on certain characteristics of the population chosen by the researcher (B) Signup and view all the answers