Understanding the Universe and Sampling

What is the target universe in research sampling?

The universe that the researcher wants to reach (correct)
The universe that represents the entire population
The universe that the researcher can easily access
The specific universe where the research is conducted

What does a sample represent in research sampling?

A finite part of the universe chosen for study (correct)
A random selection of individuals from the universe
An idealized version of the universe
The entire population of the universe

What is the process of drawing units from the universe for sampling called?

Research outreach
Universe representation
Selection bias
Sampling (correct)

In order for a sample to represent the universe well enough, what is one of the key requirements?

Appropriate sample size (A) Signup and view all the answers

What is the accessible universe in research sampling?

The concrete universe that the researcher can reach (B) Signup and view all the answers

What is the main concern with convenience sampling?

It may not represent the entire population (A) Signup and view all the answers

How is stratified sampling different from simple random sampling?

Stratified sampling ensures proportional representation of subgroups (C) Signup and view all the answers

What is the key limitation of outlier sampling?

It may lead to biased results (A) Signup and view all the answers

What is the purpose of systematic sampling?

To select units randomly from the universe list (A) Signup and view all the answers

What distinguishes probabilistic sampling methods from non-probabilistic sampling methods?

Probabilistic methods involve randomness in the sample selection process (C) Signup and view all the answers

Which of the following best defines the target universe in research sampling?

The universe that the researcher wants to study, which may be difficult to access but reflects the ideal choice (B) Signup and view all the answers

What does a sample represent in research sampling?

A specific part of the universe chosen for detailed study (A) Signup and view all the answers

What distinguishes probabilistic sampling methods from non-probabilistic sampling methods?

The use of random selection in probabilistic methods (A) Signup and view all the answers

What is the main concern with convenience sampling?

The potential bias in sample selection (A) Signup and view all the answers

How is stratified sampling different from simple random sampling?

In stratified sampling, the population is divided into subgroups and then units are randomly selected within each subgroup (A) Signup and view all the answers

What is the main difference between probabilistic and non-probabilistic sampling methods?

The use of random selection in probabilistic methods (A) Signup and view all the answers

What distinguishes stratified sampling from simple random sampling?

Stratified sampling aims to represent subgroups in proportion to their weight, while simple random sampling does not consider subgroup representation (D) Signup and view all the answers

What is the main concern with convenience sampling?

Low representative power of the sample to represent the universe (A) Signup and view all the answers

What is the purpose of outlier sampling?

To create a sample from contradictory (extreme) situations related to the problem (D) Signup and view all the answers

What distinguishes systematic sampling from simple random sampling?

Systematic sampling involves selecting every Kth element from the sample frame, while simple random sampling does not have a systematic process (B) Signup and view all the answers