Question 1

What is the difference between an "accessible population" and a "target population"?

Accepted Answer

A)  An accessible population meets inclusion criteria, whereas a target population meets exclusion criteria. 
B)  A target population meets inclusion criteria, whereas an accessible population meets exclusion criteria. 
C)  An accessible population represents the entire set of cases the researcher wishes to study, whereas a target population represents that part of the accessible population that could feasibly be included in the study. 
D)  A target population represents the entire set of cases the researcher wishes to study, whereas an accessible population represents that part of the target population that could feasibly be included in the study. 
A)  An accessible population meets inclusion criteria, whereas a target population meets exclusion criteria. 
B)  A target population meets inclusion criteria, whereas an accessible population meets exclusion criteria. 
C)  An accessible population represents the entire set of cases the researcher wishes to study, whereas a target population represents that part of the accessible population that could feasibly be included in the study. 
D)  A target population represents the entire set of cases the researcher wishes to study, whereas an accessible population represents that part of the target population that could feasibly be included in the study.

Question 2

What can a nurse researcher use to restrict the study population to homogeneous groups of participants?

Accepted Answer

A)  Sampling 
B)  Self-selection 
C)  Eligibility criteria 
D)  Defining study limitations 
A)  Sampling 
B)  Self-selection 
C)  Eligibility criteria 
D)  Defining study limitations

Question 3

Which of the following statements best identifies the sample descriptors that form the basis for eligibility criteria in sample selection?

Accepted Answer

A)  A sample of 1,000 practising nurses in a selected state was surveyed. 
B)  The sample consisted of 267 Canadian girls and American girls who lived in urban areas in their respective countries. 
C)  The sample consisted of 40 men between the ages of 20 and 55 who were treated for burn injuries during the past decade at a specialized burn unit. 
D)  The sample consisted of 57 hospital nurse executives and 178 staff registered nurses employed in Ontario. 
A)  A sample of 1,000 practising nurses in a selected state was surveyed. 
B)  The sample consisted of 267 Canadian girls and American girls who lived in urban areas in their respective countries. 
C)  The sample consisted of 40 men between the ages of 20 and 55 who were treated for burn injuries during the past decade at a specialized burn unit. 
D)  The sample consisted of 57 hospital nurse executives and 178 staff registered nurses employed in Ontario.

Question 4

What does the technique of matching in a sampling strategy contribute to the research?

Accepted Answer

A)  Improvement of study design 
B)  Elimination of the need for a control group 
C)  Increased equivalency of the comparison group 
D)  Reduction of sample size by making participants serve as their own controls 
A)  Improvement of study design 
B)  Elimination of the need for a control group 
C)  Increased equivalency of the comparison group 
D)  Reduction of sample size by making participants serve as their own controls

Question 5

Which of the following is the process of selecting representative units of a population for a research investigation?

Accepted Answer

A)  Sampling 
B)  Snowballing 
C)  Delimitation 
D)  Random assignment 
A)  Sampling 
B)  Snowballing 
C)  Delimitation 
D)  Random assignment

Question 6

What is the major characteristic of a stratified sample?

Accepted Answer

A)  The sample population is divided into subsets that are homogeneous for a particular trait or feature. 
B)  The sample population is divided into subsets for random assignment into an intervention group or a usual care group. 
C)  The sample population is randomly assigned to a specific subgroup that will differ from other groups on the basis of treatment type. 
D)  The sample population is randomly assigned to a specific subgroup that will differ from other groups on the basis of treatment duration. 
A)  The sample population is divided into subsets that are homogeneous for a particular trait or feature. 
B)  The sample population is divided into subsets for random assignment into an intervention group or a usual care group. 
C)  The sample population is randomly assigned to a specific subgroup that will differ from other groups on the basis of treatment type. 
D)  The sample population is randomly assigned to a specific subgroup that will differ from other groups on the basis of treatment duration.

Question 7

The primary characteristic of a probability sample is considered to be what?

Accepted Answer

A)  Self-selection of participants 
B)  Random selection of the sample 
C)  Participants handpicked by the researcher 
D)  Representation of proportional segments of the population 
A)  Self-selection of participants 
B)  Random selection of the sample 
C)  Participants handpicked by the researcher 
D)  Representation of proportional segments of the population

Question 8

What is the appropriate sampling interval for drawing a systematic sample of 25 participants from 200 women who had breast enhancement surgery in the course of a particular year at a specific medical centre?

Accepted Answer

A)  Every fourth patient 
B)  Every fifth patient 
C)  Every eighth patient 
D)  Every tenth patient 
A)  Every fourth patient 
B)  Every fifth patient 
C)  Every eighth patient 
D)  Every tenth patient

Question 9

A nurse researcher should attempt to clearly specify exclusion criteria for a study sample because such criteria will do what?

Accepted Answer

A)  Limit the time needed to complete the study 
B)  Reduce the effect of extraneous variables on the accurate evaluation of the outcome variable 
C)  Eliminate the outside influences and inferences regarding the effectiveness of a behavioural intervention 
D)  Ensure that an adequate sample size is accrued to meet assumptions for accurate statistical analysis 
A)  Limit the time needed to complete the study 
B)  Reduce the effect of extraneous variables on the accurate evaluation of the outcome variable 
C)  Eliminate the outside influences and inferences regarding the effectiveness of a behavioural intervention 
D)  Ensure that an adequate sample size is accrued to meet assumptions for accurate statistical analysis

Question 10

A nurse researcher should be concerned about establishing clear eligibility criteria for inclusion in a study sample because such criteria will do what?

Accepted Answer

A)  Increase the homogeneity of the sample 
B)  Decrease the homogeneity of the sample 
C)  Increase the size of the sample 
D)  Decrease the size of the sample 
A)  Increase the homogeneity of the sample 
B)  Decrease the homogeneity of the sample 
C)  Increase the size of the sample 
D)  Decrease the size of the sample

Question 11

A nurse researcher can most accurately use the technique of power analysis to do what?

Accepted Answer

A)  To estimate sample size 
B)  To establish sampling strata 
C)  To assign participants randomly 
D)  To analyze sample representativeness 
A)  To estimate sample size 
B)  To establish sampling strata 
C)  To assign participants randomly 
D)  To analyze sample representativeness

Question 12

What type of sampling strategy is represented when every fourth postsecondary student who registers for a specific course is selected into the treatment group?

Accepted Answer

A)  Cluster sampling 
B)  Systematic sampling 
C)  Simple random sampling 
D)  Stratified random sampling 
A)  Cluster sampling 
B)  Systematic sampling 
C)  Simple random sampling 
D)  Stratified random sampling

Question 13

Which factor or condition of a sample meets the criterion for representativeness?

Accepted Answer

A)  The sample is drawn randomly from the general population without the use of specific criteria. 
B)  The characteristics of the sample closely resemble the characteristics of the larger target population. 
C)  The sample includes the same percentage of men and women as well as members of different ethnic groups as the general population does. 
D)  The participants selected for the sample have agreed to express the specific opinions or beliefs representative of their ethnic or cultural group. 
A)  The sample is drawn randomly from the general population without the use of specific criteria. 
B)  The characteristics of the sample closely resemble the characteristics of the larger target population. 
C)  The sample includes the same percentage of men and women as well as members of different ethnic groups as the general population does. 
D)  The participants selected for the sample have agreed to express the specific opinions or beliefs representative of their ethnic or cultural group.

What is the difference between an "accessible population" and a "target population"?

What can a nurse researcher use to restrict the study population to homogeneous groups of participants?

Which of the following statements best identifies the sample descriptors that form the basis for eligibility criteria in sample selection?

What does the technique of matching in a sampling strategy contribute to the research?

Which of the following is the process of selecting representative units of a population for a research investigation?

What is the major characteristic of a stratified sample?

The primary characteristic of a probability sample is considered to be what?

What is the appropriate sampling interval for drawing a systematic sample of 25 participants from 200 women who had breast enhancement surgery in the course of a particular year at a specific medical centre?

A nurse researcher should attempt to clearly specify exclusion criteria for a study sample because such criteria will do what?

A nurse researcher should be concerned about establishing clear eligibility criteria for inclusion in a study sample because such criteria will do what?

A nurse researcher can most accurately use the technique of power analysis to do what?

What type of sampling strategy is represented when every fourth postsecondary student who registers for a specific course is selected into the treatment group?

Which factor or condition of a sample meets the criterion for representativeness?

The Role of Research in Nursing

Theoretical Framework

Critical Reading Strategies: Overview of the Research Process

Developing Research Questions, Hypotheses, and Clinical Questions

Finding and Appraising the Literature

Legal and Ethical Issues

Introduction to Qualitative Research

Qualitative Approaches to Research

Introduction to Quantitative Research

Experimental and Quasiexperimental Designs

Non-Experimental Designs

Data Collection Methods

Rigour in Research

Qualitative Data Analysis

Quantitative Data Analysis

Presenting the Findings

Critiquing Qualitative Research

Critiquing Quantitative Research

Developing an Evidence-Informed Practice

Filters

Exam 12: Sampling

What is the difference between an "accessible population" and a "target population"?

What can a nurse researcher use to restrict the study population to homogeneous groups of participants?

Which of the following statements best identifies the sample descriptors that form the basis for eligibility criteria in sample selection?

What does the technique of matching in a sampling strategy contribute to the research?

Which of the following is the process of selecting representative units of a population for a research investigation?

What is the major characteristic of a stratified sample?

The primary characteristic of a probability sample is considered to be what?

What is the appropriate sampling interval for drawing a systematic sample of 25 participants from 200 women who had breast enhancement surgery in the course of a particular year at a specific medical centre?

A nurse researcher should attempt to clearly specify exclusion criteria for a study sample because such criteria will do what?

A nurse researcher should be concerned about establishing clear eligibility criteria for inclusion in a study sample because such criteria will do what?

A nurse researcher can most accurately use the technique of power analysis to do what?

What type of sampling strategy is represented when every fourth postsecondary student who registers for a specific course is selected into the treatment group?

Which factor or condition of a sample meets the criterion for representativeness?

The Role of Research in Nursing

Theoretical Framework

Critical Reading Strategies: Overview of the Research Process

Developing Research Questions, Hypotheses, and Clinical Questions

Finding and Appraising the Literature

Legal and Ethical Issues

Introduction to Qualitative Research

Qualitative Approaches to Research

Introduction to Quantitative Research

Experimental and Quasiexperimental Designs

Non-Experimental Designs

Data Collection Methods

Rigour in Research

Qualitative Data Analysis

Quantitative Data Analysis

Presenting the Findings

Critiquing Qualitative Research

Critiquing Quantitative Research

Developing an Evidence-Informed Practice

Filters