Question 1

Sampling in research may be defined as:

Accepted Answer

A)  insurance that each person has a chance of being included in the study. 
B)  establishment of criteria for eligibility to participate in a study. 
C)  identification of the population in which the researcher is interested. 
D)  selection of a subset of a population to represent the whole population. 
A)  insurance that each person has a chance of being included in the study. 
B)  establishment of criteria for eligibility to participate in a study. 
C)  identification of the population in which the researcher is interested. 
D)  selection of a subset of a population to represent the whole population.

Question 2

Another name for probability sampling is:

Accepted Answer

A)  accidental sampling. 
B)  purposive sampling. 
C)  quota sampling. 
D)  random sampling. 
A)  accidental sampling. 
B)  purposive sampling. 
C)  quota sampling. 
D)  random sampling.

Question 3

Subjects who participate in a study of patients with inflammatory bowel disease are described as the:

Accepted Answer

A)  accessible population. 
B)  element. 
C)  sample. 
D)  target population. 
A)  accessible population. 
B)  element. 
C)  sample. 
D)  target population.

Question 4

A researcher wants to obtain a sample of individuals who are HIV positive. Which of the following sampling methods would be the most effective way to obtain a sample?

Accepted Answer

A)  Accidental sampling 
B)  Cluster sampling 
C)  Network sampling 
D)  Simple random sampling 
A)  Accidental sampling 
B)  Cluster sampling 
C)  Network sampling 
D)  Simple random sampling

Question 5

Which of the following study types would require the largest sample size?

Accepted Answer

A)  Correlational 
B)  Experimental 
C)  Grounded theory 
D)  Phenomenology 
A)  Correlational 
B)  Experimental 
C)  Grounded theory 
D)  Phenomenology

Question 6

The sample size needed for a study increases when:

Accepted Answer

A)  the alpha level is increased from .01 to .05. 
B)  the number of variables in the study increases. 
C)  a one-tailed versus a two-tailed statistical test is used. 
D)  the sensitivity of the instruments used is high. 
A)  the alpha level is increased from .01 to .05. 
B)  the number of variables in the study increases. 
C)  a one-tailed versus a two-tailed statistical test is used. 
D)  the sensitivity of the instruments used is high.

Question 7

Which type of sampling will get the largest number of subjects in the shortest period of time?

Accepted Answer

A)  Cluster sampling 
B)  Convenience sampling 
C)  Network or snowball sampling 
D)  Random sampling 
A)  Cluster sampling 
B)  Convenience sampling 
C)  Network or snowball sampling 
D)  Random sampling

Question 8

Sample attrition would be reflected by the:

Accepted Answer

A)  average death rate of the population under study. 
B)  inability to access identified members of a population. 
C)  number of patients who die while participating in a study. 
D)  number of patients who drop out of a study. 
A)  average death rate of the population under study. 
B)  inability to access identified members of a population. 
C)  number of patients who die while participating in a study. 
D)  number of patients who drop out of a study.

Question 9

A sample that accurately reflects the characteristics of the population from which it is drawn is a:

Accepted Answer

A)  cluster sample. 
B)  purposive sample. 
C)  random sample. 
D)  representative sample. 
A)  cluster sample. 
B)  purposive sample. 
C)  random sample. 
D)  representative sample.

Question 10

Which of the following is true about network sampling?

Accepted Answer

A)  Eligibility criteria do not need to be defined carefully. 
B)  Finding large numbers of subjects by this means is easy and economical. 
C)  Sample representativeness is guaranteed by using this technique. 
D)  Subjects who have knowledge of a situation, often sensitive or not socially acceptable, are identified by others in the same type of situation. 
A)  Eligibility criteria do not need to be defined carefully. 
B)  Finding large numbers of subjects by this means is easy and economical. 
C)  Sample representativeness is guaranteed by using this technique. 
D)  Subjects who have knowledge of a situation, often sensitive or not socially acceptable, are identified by others in the same type of situation.

Question 11

In a study investigating nurses' attitudes toward taking care of respiratory disease patients who had a long history of smoking, the researcher randomly selected a sample from a list of all the registered nurses from a randomly selected list of four states in the Southeast. Because the sample was drawn randomly, to what population can the findings of the study be generalized? Registered nurses in the:

Accepted Answer

A)  Selected four states 
B)  Southeast 
C)  Southeast who are actively working 
D)  United States 
A)  Selected four states 
B)  Southeast 
C)  Southeast who are actively working 
D)  United States

Question 12

Which of the following are not correctly paired as similar types of sampling methods?

Accepted Answer

A)  Convenience sampling-accidental sampling 
B)  Network sampling-snowball sampling 
C)  Purposive sampling-selective sampling 
D)  Stratified random sampling-quota sampling 
A)  Convenience sampling-accidental sampling 
B)  Network sampling-snowball sampling 
C)  Purposive sampling-selective sampling 
D)  Stratified random sampling-quota sampling

Question 13

Findings of an intervention study with a convenience sample:

Accepted Answer

A)  are generalizable to a wider group of patients with related problems. 
B)  are to be discounted because they are extremely biased. 
C)  provide no useful information. 
D)  should be replicated before being applied to a wider population. 
A)  are generalizable to a wider group of patients with related problems. 
B)  are to be discounted because they are extremely biased. 
C)  provide no useful information. 
D)  should be replicated before being applied to a wider population.

Question 14

The Crohn's and Colitis Foundation of America referred the interested researcher to a local chapter of the organization. The local chapter agreed to send out letters on behalf of the researcher inviting potential subjects to contact the researcher if they are willing to participate in a study. Potential subjects in this situation would be described as the:

Accepted Answer

A)  accessible population. 
B)  element. 
C)  sample. 
D)  target population. 
A)  accessible population. 
B)  element. 
C)  sample. 
D)  target population.

Question 15

Which of the following sets of terms represents an appropriate pairing of a probability sampling method and a corresponding nonprobability sampling one?

Accepted Answer

A)  Cluster sampling-snowball technique 
B)  Simple random sampling-convenience sampling 
C)  Stratified random sampling-quota sampling 
D)  Theoretical sampling-quota sampling 
A)  Cluster sampling-snowball technique 
B)  Simple random sampling-convenience sampling 
C)  Stratified random sampling-quota sampling 
D)  Theoretical sampling-quota sampling

Question 16

Which of the following is an example of purposive sampling?

Accepted Answer

A)  The names of all possible subjects are put into a hat, and an adequate number are drawn out. 
B)  Volunteers are solicited from the entire population, and those who agree become subjects in the study. 
C)  Sample members are determined by finding a designated number of subjects from each of several identified groups (men, women, high school graduates, etc.). 
D)  Subjects who have knowledge about the study topic are asked to participate in the study; those who agree become the sample. 
A)  The names of all possible subjects are put into a hat, and an adequate number are drawn out. 
B)  Volunteers are solicited from the entire population, and those who agree become subjects in the study. 
C)  Sample members are determined by finding a designated number of subjects from each of several identified groups (men, women, high school graduates, etc.). 
D)  Subjects who have knowledge about the study topic are asked to participate in the study; those who agree become the sample.

Question 17

In a study investigating nurses' attitudes toward taking care of respiratory disease patients who had a long history of smoking, the researcher randomly selected a sample from a list of all the registered nurses from a randomly selected list of four states in the Southeast. If the researcher also selected the sample by randomly selecting nurses who smoke and those who do not, what sampling technique is being used?

Accepted Answer

A)  Cluster 
B)  Quota 
C)  Stratified random 
D)  Systematic 
A)  Cluster 
B)  Quota 
C)  Stratified random 
D)  Systematic

Question 18

The researcher is to select a set of five subjects using a random numbers table. The selected population is 50. The researcher's pencil was initially placed on the second column from the left and third row down. The decision is to move across the columns to the right. 
 
The subject numbers will be:

Accepted Answer

A)  13, 30, 44, 40, 32 
B)  19, 38, 55, 15, 25 
C)  19, 63, 93, 72, 52 
D)  33, 02, 54, 39, 66 
A)  13, 30, 44, 40, 32 
B)  19, 38, 55, 15, 25 
C)  19, 63, 93, 72, 52 
D)  33, 02, 54, 39, 66

Question 19

Which of the following is true about theoretical sampling?

Accepted Answer

A)  All studies use theoretical sampling as a background for creating the sample. 
B)  Grounded theory research frequently uses theoretical sampling to develop a selected theory. 
C)  Subjects are selected to participate in a research study to match certain theory characteristics. 
D)  Theoretical sampling is a little-used, but powerful method of creating a sample for quantitative research. 
A)  All studies use theoretical sampling as a background for creating the sample. 
B)  Grounded theory research frequently uses theoretical sampling to develop a selected theory. 
C)  Subjects are selected to participate in a research study to match certain theory characteristics. 
D)  Theoretical sampling is a little-used, but powerful method of creating a sample for quantitative research.

Question 20

The population from which the researcher selects the actual study sample is referred to as the:

Accepted Answer

A)  accessible population. 
B)  scientific population. 
C)  target population. 
D)  theoretical population. 
A)  accessible population. 
B)  scientific population. 
C)  target population. 
D)  theoretical population.

Sampling in research may be defined as:

Another name for probability sampling is:

Subjects who participate in a study of patients with inflammatory bowel disease are described as the:

A researcher wants to obtain a sample of individuals who are HIV positive. Which of the following sampling methods would be the most effective way to obtain a sample?

Which of the following study types would require the largest sample size?

The sample size needed for a study increases when:

Which type of sampling will get the largest number of subjects in the shortest period of time?

Sample attrition would be reflected by the:

A sample that accurately reflects the characteristics of the population from which it is drawn is a:

Which of the following is true about network sampling?

Which of the following are not correctly paired as similar types of sampling methods?

Findings of an intervention study with a convenience sample:

Which of the following sets of terms represents an appropriate pairing of a probability sampling method and a corresponding nonprobability sampling one?

Which of the following is an example of purposive sampling?

The researcher is to select a set of five subjects using a random numbers table. The selected population is 50. The researcher's pencil was initially placed on the second column from the left and third row down. The decision is to move across the columns to the right. The subject numbers will be:

Which of the following is true about theoretical sampling?

The population from which the researcher selects the actual study sample is referred to as the:

Introduction to Nursing Research and Evidence-Based Practice

Introduction to the Quantitative Research Process

Introduction to the Qualitative Research Process

Examining Ethics in Nursing Research

Research Problems, Purposes, and Hypotheses

Understanding the Literature Review in Published Studies

Understanding Theory and Research Frameworks

Clarifying Quantitative Research Designs

Clarifying Measurement and Data Collection in Quantitative Research

Understanding Statistics in Research

Critical Appraisal of Quantitative and Qualitative Research for Nursing Practice

Building an Evidence-Based Nursing Practice

Introduction to Outcomes Research

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Exam 9: Examining Populations and Samples in Research

Sampling in research may be defined as:

Another name for probability sampling is:

Subjects who participate in a study of patients with inflammatory bowel disease are described as the:

A researcher wants to obtain a sample of individuals who are HIV positive. Which of the following sampling methods would be the most effective way to obtain a sample?

Which of the following study types would require the largest sample size?

The sample size needed for a study increases when:

Which type of sampling will get the largest number of subjects in the shortest period of time?

Sample attrition would be reflected by the:

A sample that accurately reflects the characteristics of the population from which it is drawn is a:

Which of the following is true about network sampling?

Which of the following are not correctly paired as similar types of sampling methods?

Findings of an intervention study with a convenience sample:

Which of the following sets of terms represents an appropriate pairing of a probability sampling method and a corresponding nonprobability sampling one?

Which of the following is an example of purposive sampling?

The researcher is to select a set of five subjects using a random numbers table. The selected population is 50. The researcher's pencil was initially placed on the second column from the left and third row down. The decision is to move across the columns to the right. The subject numbers will be:

Which of the following is true about theoretical sampling?

The population from which the researcher selects the actual study sample is referred to as the:

Introduction to Nursing Research and Evidence-Based Practice

Introduction to the Quantitative Research Process

Introduction to the Qualitative Research Process

Examining Ethics in Nursing Research

Research Problems, Purposes, and Hypotheses

Understanding the Literature Review in Published Studies

Understanding Theory and Research Frameworks

Clarifying Quantitative Research Designs

Clarifying Measurement and Data Collection in Quantitative Research

Understanding Statistics in Research

Critical Appraisal of Quantitative and Qualitative Research for Nursing Practice

Building an Evidence-Based Nursing Practice

Introduction to Outcomes Research

Filters