Question 1

Which of the following definitions best describes statistical power?

Accepted Answer

A)  The sample size determines the statistical power of a test. 
B)  The probability that the test will reject the null hypothesis when it is false. 
C)  The probability that the test will reject the null hypothesis when it is true. 
D)  A test that can detect even small differences. 
A)  The sample size determines the statistical power of a test. 
B)  The probability that the test will reject the null hypothesis when it is false. 
C)  The probability that the test will reject the null hypothesis when it is true. 
D)  A test that can detect even small differences. B

Question 2

All of the following factors are major considerations in recruiting participants, except:

Accepted Answer

A)  participants need to be available for the duration of the study. 
B)  20 percent of the population should be selected. 
C)  adequate numbers of participants are needed to show the reliability of the results. 
D)  recruitment allows for some participant mortality. 
A)  participants need to be available for the duration of the study. 
B)  20 percent of the population should be selected. 
C)  adequate numbers of participants are needed to show the reliability of the results. 
D)  recruitment allows for some participant mortality. B

Question 3

Which of the following is not a type of purposive sampling?

Accepted Answer

A)  Extreme case 
B)  Typical 
C)  Convenience 
D)  Maximum variation 
A)  Extreme case 
B)  Typical 
C)  Convenience 
D)  Maximum variation C

Question 4

Which of the definitions best describes the sampling frame?

Accepted Answer

A)  The sample is representative of the population in which the characteristics are being studied. 
B)  The accessible population. 
C)  To select a sample from a population. 
D)  A sample of a larger group. 
A)  The sample is representative of the population in which the characteristics are being studied. 
B)  The accessible population. 
C)  To select a sample from a population. 
D)  A sample of a larger group.

Question 5

A type of probability sampling in which the sampling unit is a naturally occurring group of members of the population is:

Accepted Answer

A)  cluster sampling. 
B)  stratified random sampling. 
C)  systematic sampling. 
D)  simple random sampling. 
A)  cluster sampling. 
B)  stratified random sampling. 
C)  systematic sampling. 
D)  simple random sampling.

Question 6

A well-designed study with a high degree of generalizability is likely to have used which of the following sampling techniques?

Accepted Answer

A)  Simple random sampling 
B)  Convenience sampling 
C)  Nonprobability sampling 
D)  Purposive sampling 
A)  Simple random sampling 
B)  Convenience sampling 
C)  Nonprobability sampling 
D)  Purposive sampling

Question 7

Which of the following best describes samples in qualitative studies?

Accepted Answer

A)  Optimal sample size provides adequate power to show statistically significant differences. 
B)  Studying a smaller group over a longer period of time. 
C)  Studying a smaller group for a shorter period of time. 
D)  Studying a larger group. 
A)  Optimal sample size provides adequate power to show statistically significant differences. 
B)  Studying a smaller group over a longer period of time. 
C)  Studying a smaller group for a shorter period of time. 
D)  Studying a larger group.

Question 8

Which of the following best describes samples in quantitative studies?

Accepted Answer

A)  Sample size provides adequate power to show statistically significant differences. 
B)  Studying a smaller group over a longer period of time. 
C)  Studying a smaller group for a shorter period of time. 
D)  Studying a larger group. 
A)  Sample size provides adequate power to show statistically significant differences. 
B)  Studying a smaller group over a longer period of time. 
C)  Studying a smaller group for a shorter period of time. 
D)  Studying a larger group.

Question 9

Sampling error refers to which of the following?

Accepted Answer

A)  Nonrandom variations that may occur in the sampling process 
B)  Random variations that may occur in the sampling process 
C)  The measure of the magnitude of generalizability of the sample 
D)  The researcher performed mistakes in the sampling process 
A)  Nonrandom variations that may occur in the sampling process 
B)  Random variations that may occur in the sampling process 
C)  The measure of the magnitude of generalizability of the sample 
D)  The researcher performed mistakes in the sampling process

Question 10

What is the definition of data saturation?

Accepted Answer

A)  New ideas are brought up in interviews. 
B)  New ideas are found in document reviews. 
C)  Studying one participant for a long period of time. 
D)  No new ideas are being generated from interviews and documents. 
A)  New ideas are brought up in interviews. 
B)  New ideas are found in document reviews. 
C)  Studying one participant for a long period of time. 
D)  No new ideas are being generated from interviews and documents.

Question 11

Which of the following is a characteristic of simple random sampling?

Accepted Answer

A)  The sampling frame is equivalent to the population. 
B)  Random errors are minimized. 
C)  Every element has an equal chance of being selected. 
D)  Sampling error is eliminated through simple random sampling. 
A)  The sampling frame is equivalent to the population. 
B)  Random errors are minimized. 
C)  Every element has an equal chance of being selected. 
D)  Sampling error is eliminated through simple random sampling.

Question 12

Which of the following is not a primary factor regarding sample size?

Accepted Answer

A)  Descriptive research typically utilizes larger samples than experimental research. 
B)  Sampling error is inversely related to sample size. 
C)  Random sampling produces a high sampling error. 
D)  Sample size should increase as variability within the population increases. 
A)  Descriptive research typically utilizes larger samples than experimental research. 
B)  Sampling error is inversely related to sample size. 
C)  Random sampling produces a high sampling error. 
D)  Sample size should increase as variability within the population increases.

Question 13

Random processes are important to the quality of research primarily because of which of the following reasons?

Accepted Answer

A)  They make certain the population is appropriate for the study. 
B)  They are the ethical procedure to follow. 
C)  They assure the representativeness of the sample. 
D)  They protect against unintended consequences. 
A)  They make certain the population is appropriate for the study. 
B)  They are the ethical procedure to follow. 
C)  They assure the representativeness of the sample. 
D)  They protect against unintended consequences.

Question 14

Which of the following definitions best describes a representative sample?

Accepted Answer

A)  The sample is the accessible population. 
B)  The sample is an equivalent group. 
C)  The sample is representative of the population in which the characteristics are being studied. 
D)  The sample is of a larger group. 
A)  The sample is the accessible population. 
B)  The sample is an equivalent group. 
C)  The sample is representative of the population in which the characteristics are being studied. 
D)  The sample is of a larger group.

Question 15

Which term refers to an entire group or aggregate of people or elements?

Accepted Answer

A)  Sampling frame 
B)  Population 
C)  Cluster 
D)  Random sample 
A)  Sampling frame 
B)  Population 
C)  Cluster 
D)  Random sample

Which of the following definitions best describes statistical power?

All of the following factors are major considerations in recruiting participants, except:

Which of the following is not a type of purposive sampling?

Which of the definitions best describes the sampling frame?

A type of probability sampling in which the sampling unit is a naturally occurring group of members of the population is:

A well-designed study with a high degree of generalizability is likely to have used which of the following sampling techniques?

Which of the following best describes samples in qualitative studies?

Which of the following best describes samples in quantitative studies?

Sampling error refers to which of the following?

What is the definition of data saturation?

Which of the following is a characteristic of simple random sampling?

Which of the following is not a primary factor regarding sample size?

Random processes are important to the quality of research primarily because of which of the following reasons?

Which of the following definitions best describes a representative sample?

Which term refers to an entire group or aggregate of people or elements?

The Nature, Purpose, and Overall Process of Research

Descriptive Research

Experimental Research

Qualitative Research

Historical Research and Action Research

Epidemiologic Research

Reviewing the Literature

Reading, Evaluating and Summarizing Research Reports

Developing the Research Plan and Grant Application

Ethical Concerns in Research

Measurement in Research

Descriptive Data Analysis

Inferential Data Analysis

Qualitative and Mixed Methods Data Analysis and Interpretations

Developing the Research Proposal

Understanding the Research Process

Writing the Research Report

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Exam 12: Identifying, Recruiting and Selecting Research Participants

Which of the following definitions best describes statistical power?

All of the following factors are major considerations in recruiting participants, except:

Which of the following is not a type of purposive sampling?

Which of the definitions best describes the sampling frame?

A type of probability sampling in which the sampling unit is a naturally occurring group of members of the population is:

A well-designed study with a high degree of generalizability is likely to have used which of the following sampling techniques?

Which of the following best describes samples in qualitative studies?

Which of the following best describes samples in quantitative studies?

Sampling error refers to which of the following?

What is the definition of data saturation?

Which of the following is a characteristic of simple random sampling?

Which of the following is not a primary factor regarding sample size?

Random processes are important to the quality of research primarily because of which of the following reasons?

Which of the following definitions best describes a representative sample?

Which term refers to an entire group or aggregate of people or elements?

The Nature, Purpose, and Overall Process of Research

Descriptive Research

Experimental Research

Qualitative Research

Historical Research and Action Research

Epidemiologic Research

Reviewing the Literature

Reading, Evaluating and Summarizing Research Reports

Developing the Research Plan and Grant Application

Ethical Concerns in Research

Measurement in Research

Descriptive Data Analysis

Inferential Data Analysis

Qualitative and Mixed Methods Data Analysis and Interpretations

Developing the Research Proposal

Understanding the Research Process

Writing the Research Report

Filters