Master Sampling Techniques in Nursing Research: Quizzes and Practice

Question 1

What is the primary advantage of using a probability sampling method?

Accepted Answer

Increased likelihood of obtaining a representative sample

Answer

Reduced bias in sample selection

Answer

Convenience and affordability

Answer

Ability to generalize findings to the entire population

Question 2

Which of the following is NOT a type of probability sampling method?

Accepted Answer

Quota sampling

Answer

Simple random sampling

Answer

Systematic sampling

Answer

Stratified sampling

Question 3

What is the key difference between a census and a sample?

Accepted Answer

Census includes the entire population, while a sample does not

Answer

Sample is more representative than a census

Answer

Census is more accurate than a sample

Answer

Sample is less expensive to conduct than a census

Question 4

Which of the following is an example of a non-probability sampling method often used in qualitative research?

Accepted Answer

Convenience sampling

Answer

Random sampling

Answer

Systematic sampling

Answer

Stratified sampling

Question 5

What is a sampling error?

Accepted Answer

Difference between sample results and population parameters

Answer

Error introduced by researchers during sampling process

Answer

Bias in sample selection

Answer

Variation in sample results due to chance

Question 6

What is the primary benefit of employing random sampling?

Accepted Answer

It ensures an equal probability of inclusion for all subjects in the population.

Answer

It is cost-effective to implement.

Answer

It simplifies the sampling process.

Answer

It eliminates the influence of potential biases.

Question 7

Which non-probability sampling method is commonly used in qualitative research?

Accepted Answer

Convenience sampling

Answer

Cluster sampling

Answer

Multistage sampling

Answer

Stratified sampling

Question 8

The main objective of purposive sampling is to select a sample that:

Accepted Answer

Meets specific criteria relevant to the research question.

Answer

Is representative of the entire population.

Answer

Is accessible and convenient for the researcher.

Answer

Provides enough data for statistical analysis.

Question 9

Sample size is crucial in research because it:

Accepted Answer

Both (A) and (B).

Answer

Ensures the sample adequately represents the population.

Answer

Enhances the likelihood of achieving statistically significant results.

Answer

Reduces research costs.

Question 10

Which of the following is a non-probability sampling method?

Accepted Answer

Convenience sampling

Answer

Simple random sampling

Answer

Systematic sampling

Answer

Stratified sampling

Question 11

Which of the following is a non-probability sampling method?

Accepted Answer

Quota sampling

Answer

Simple random sampling

Answer

Systematic sampling

Answer

Stratified sampling

Question 12

Which advantage is associated with stratified sampling?

Accepted Answer

Enhanced representation of population subgroups

Answer

Reduced sampling error

Answer

Lower cost compared to other methods

Answer

Simplified subject selection process

Question 13

For situations where the target population is not well-defined, which sampling method is most appropriate?

Accepted Answer

Non-probability sampling

Answer

Probability sampling

Answer

Stratified sampling

Answer

Systematic sampling

Question 14

What does sampling error estimate?

Accepted Answer

Margin of error in sample estimate

Answer

Difference between sample and population characteristics

Answer

Confidence level in sample results

Answer

Required sample size for a given confidence level

Question 15

Which non-probability sampling method involves selecting subjects based on their knowledge or expertise?

Accepted Answer

Purposive sampling

Answer

Snowball sampling

Answer

Convenience sampling

Answer

Quota sampling

Question 16

What is the primary benefit of using probability sampling methods?

Accepted Answer

Accurate representation of the target population

Answer

Reduced sampling error

Answer

Convenient subject selection process

Answer

Cost-effectiveness

Question 17

Identify the sampling method that is NOT a probability sampling technique:

Accepted Answer

Convenience sampling

Answer

Simple random sampling

Answer

Systematic sampling

Answer

Stratified sampling

Question 18

In which scenario would convenience sampling be the most appropriate method for selecting participants in a research study?

Accepted Answer

When the researcher has limited resources and time

Answer

When the researcher needs to obtain a representative sample

Answer

When the researcher wants to control for specific characteristics in the sample

Answer

When the researcher wants to ensure anonymity of participants

Question 19

What is the primary purpose of using randomization in selecting a sample?

Accepted Answer

To reduce the risk of selection bias, ensuring that all members of the population have an equal chance of being selected

Answer

To increase the likelihood of obtaining a sample that represents the population

Answer

To improve the precision of the research findings

Answer

To simplify the process of data collection

Question 20

Which factors influence the sample size required for a study?

Accepted Answer

All of the above factors

Answer

The desired level of confidence in the research findings

Answer

The size of the population being studied

Answer

The variability in the data

Question 21

What is the purpose of a sampling frame in research?

Accepted Answer

To create a list of all individuals from which the sample will be selected

Answer

To ensure that the sample is representative of the population

Answer

To reduce the risk of selection bias

Answer

To improve the efficiency of data collection

Question 22

Provide an example of a purposive sampling method.

Accepted Answer

Selecting participants based on specific criteria relevant to the research question

Answer

Selecting participants randomly from a sampling frame

Answer

Selecting participants based on their convenience or availability

Answer

Selecting participants from a snowball sample

Question 23

Which of the following is a non-probability sampling method?

Accepted Answer

Convenience sampling

Answer

Simple random sampling

Answer

Systematic sampling

Answer

Stratified sampling

Question 24

In snowball sampling, participants are recruited primarily through:

Accepted Answer

Social networks

Answer

Random selection from a list

Answer

Approaching individuals in public settings

Answer

In-person interviews

Question 25

Which of the following is NOT an ethical concern related to sampling techniques?

Accepted Answer

Maximizing ease of participant recruitment

Answer

Protecting participant privacy

Answer

Avoiding bias

Answer

Obtaining informed consent

Question 26

Clarity and Precision Edit: Which sampling method entails randomly selecting participants from a sampling frame that represents the entire population?

Accepted Answer

Simple random sampling

Answer

Convenience sampling

Answer

Snowball sampling

Answer

Quota sampling

Question 27

Answer Options Edit: A research team is conducting a pilot study to develop a new nursing intervention. Which non-probability sampling method would be most suitable?

Accepted Answer

Purposive sampling

Answer

Stratified sampling

Answer

Systematic sampling

Answer

Cluster sampling

Question 28

Difficulty Adjustment Edit: Which sampling technique is optimal for a study with a vast target population and limited resources?

Accepted Answer

Cluster sampling

Answer

Convenience sampling

Answer

Simple random sampling

Answer

Systematic sampling

Question 29

Answer Options Edit: A nursing researcher aims to compare the effects of a novel wound care dressing on diabetic foot ulcer patients. Which sampling technique would be most appropriate?

Accepted Answer

Stratified sampling

Answer

Quota sampling

Answer

Convenience sampling

Answer

Snowball sampling

Question 30

Correctness and Precision of the Answer Edit: Which sampling method involves dividing the population into subgroups based on specific characteristics?

Accepted Answer

Stratified sampling

Answer

Cluster sampling

Answer

Systematic sampling

Answer

Convenience sampling

Question 31

Language Accessibility Edit: A research team is planning a study to examine the prevalence of sleep disturbances among nurses. Which sampling frame would be most appropriate?

Accepted Answer

A list of all nurses in the country

Answer

Nurses employed at a particular hospital

Answer

Nurses present at a nursing conference

Answer

Nursing students enrolled in a university

Question 32

Clarity and Precision Edit: Which sampling method involves selecting every nth participant from a list?

Accepted Answer

Systematic sampling

Answer

Simple random sampling

Answer

Stratified sampling

Answer

Convenience sampling

Question 33

Which sampling technique is used when every nth subject is selected from the population?

Accepted Answer

Systematic sampling

Answer

Stratified sampling

Answer

Quota sampling

Answer

Convenience sampling

Question 34

What is a fundamental assumption of simple random sampling?

Accepted Answer

Each subject in the population has an equal chance of being chosen

Answer

The population is normally distributed

Answer

The researcher has access to the entire population

Answer

The sample size is small

Question 35

Which of the following is a non-probability sampling method?

Accepted Answer

Convenience sampling

Answer

Stratified sampling

Answer

Multistage sampling

Answer

Systematic sampling

Question 36

What is a primary advantage of stratified sampling over simple random sampling?

Accepted Answer

Ensures representation of important subgroups within the population

Answer

Reduces sampling error

Answer

Lowers cost

Answer

Less time-consuming

Question 37

Which sampling method is commonly used when a population is widely dispersed?

Accepted Answer

Cluster sampling

Answer

Stratified sampling

Answer

Systematic sampling

Answer

Simple random sampling

Question 38

What is the potential bias associated with convenience sampling?

Accepted Answer

Sample may not be representative of the target population

Answer

Data collection may be inconvenient

Answer

Results may not be generalizable

Answer

Sample size may be too large

Question 39

What is the purpose of a sampling frame in research?

Accepted Answer

To list all members of the target population

Answer

To analyze collected data

Answer

To select the sample

Answer

To estimate population parameters

Question 40

How does a sample differ from a census?

Accepted Answer

A sample represents a subset of the population, while a census includes all members

Answer

A sample is less accurate than a census

Answer

A census is more cost-efficient than a sample

Answer

A sample is always smaller than a census