In this type of probability sample, individuals are randomly selected from a sampling frame
designed to ensure that each person will have an equal chance of being selected (e.g. use of a
hat or a random numbers table)
Systematic Random Sample
Snowball Sample
Convenience Sample
Simple Random Sample
Quota Sample
The following is an example of what level of measurement?
Level of education:
High school diploma/GED
Some college
College degree
Graduate/professional degree
Ordinal (A)
Ratio (C)
Interval (B)
Nominal (D)
An advantage to using random sampling techniques is that it allows the researcher to:
Establish reliability
Select the most intelligent participants for our study
Operationalize variables
Generalize to other populations
Determine the results
The process by which a researcher defines the meaning of a concept or variable is known as:
Reliability
Conceptualization
Generalization
Operationalization (NOT this one)
Specification
Dr. Banks wants to study how long patients stay in a mental health facility. He looks at
admission data from the facility and discovers there are 252 patients. To recruit participants, he
selects every 9th patient on the admission list. Which sampling method is being used:
Cluster random sampling
Stratified random sampling
Systematic random sampling
, Snowball sampling
Purposive sampling
Race/ethnicity is an example of what level of measurement?
Ratio
Ordinal
Validity
Interval
Nominal
When determining how accurate research is in capturing some phenomenon (e.g., level of
depression), researchers are concerned about:
Reliability
Validity
Causality
Objectivity
Evaluation
Operationalization is the process of defining a variable into measurable factors.
True
False
Professor Snow developed a new assessment measure to assess levels of victimization. He
wants to ensure that the items in the measure reflect the five domains of victimization mostly
common noted in the literature. He would want to test for:
Validity
Concurrent validity (NOT this one)
Content validity
Criterion validity
Inter-rater reliability
Your peers decide to conduct a research project to find out whether people would support a bill
to legalize marijuana in Florida. Given that you have to complete the project in 4 weeks, what is
the best sampling approach to use:
, Availability sampling
Simple random sampling
Systematic random sampling
Cluster sampling
How can a researcher ensure that the findings from his study is generalizable to the larger
targeted population?
A, B, and C
The researcher should focus on reducing sampling error (A)
The researcher should use probability sampling approaches (C)
The researcher should aim to recruit a smaller sample size (B)
A and C
When researchers measure an unchanging phenomenon at two different times, the degree to
which the two measurements are related is called:
Test-retest reliability
Inter-item reliability
Criterion validity
Predictive validity
Alternate-forms reliability
Professor Jones wants to study learning styles among children diagnosed with ADHD and
Tourette’s Syndrome. Based on his knowledge of the community, he approaches two learning
centers who specialize in working with children with special needs. What type of sampling
approach will he use:
Simple random sampling
Purposive sampling
Cluster sampling
Convenience sampling
Systemic sampling
To establish concurrent validity, a researcher must include which of the following in a survey that
includes a new index of depression?
A previously validated measure of depression
Open-ended questions that ask for details about responses
Multiple forms of the same index
designed to ensure that each person will have an equal chance of being selected (e.g. use of a
hat or a random numbers table)
Systematic Random Sample
Snowball Sample
Convenience Sample
Simple Random Sample
Quota Sample
The following is an example of what level of measurement?
Level of education:
High school diploma/GED
Some college
College degree
Graduate/professional degree
Ordinal (A)
Ratio (C)
Interval (B)
Nominal (D)
An advantage to using random sampling techniques is that it allows the researcher to:
Establish reliability
Select the most intelligent participants for our study
Operationalize variables
Generalize to other populations
Determine the results
The process by which a researcher defines the meaning of a concept or variable is known as:
Reliability
Conceptualization
Generalization
Operationalization (NOT this one)
Specification
Dr. Banks wants to study how long patients stay in a mental health facility. He looks at
admission data from the facility and discovers there are 252 patients. To recruit participants, he
selects every 9th patient on the admission list. Which sampling method is being used:
Cluster random sampling
Stratified random sampling
Systematic random sampling
, Snowball sampling
Purposive sampling
Race/ethnicity is an example of what level of measurement?
Ratio
Ordinal
Validity
Interval
Nominal
When determining how accurate research is in capturing some phenomenon (e.g., level of
depression), researchers are concerned about:
Reliability
Validity
Causality
Objectivity
Evaluation
Operationalization is the process of defining a variable into measurable factors.
True
False
Professor Snow developed a new assessment measure to assess levels of victimization. He
wants to ensure that the items in the measure reflect the five domains of victimization mostly
common noted in the literature. He would want to test for:
Validity
Concurrent validity (NOT this one)
Content validity
Criterion validity
Inter-rater reliability
Your peers decide to conduct a research project to find out whether people would support a bill
to legalize marijuana in Florida. Given that you have to complete the project in 4 weeks, what is
the best sampling approach to use:
, Availability sampling
Simple random sampling
Systematic random sampling
Cluster sampling
How can a researcher ensure that the findings from his study is generalizable to the larger
targeted population?
A, B, and C
The researcher should focus on reducing sampling error (A)
The researcher should use probability sampling approaches (C)
The researcher should aim to recruit a smaller sample size (B)
A and C
When researchers measure an unchanging phenomenon at two different times, the degree to
which the two measurements are related is called:
Test-retest reliability
Inter-item reliability
Criterion validity
Predictive validity
Alternate-forms reliability
Professor Jones wants to study learning styles among children diagnosed with ADHD and
Tourette’s Syndrome. Based on his knowledge of the community, he approaches two learning
centers who specialize in working with children with special needs. What type of sampling
approach will he use:
Simple random sampling
Purposive sampling
Cluster sampling
Convenience sampling
Systemic sampling
To establish concurrent validity, a researcher must include which of the following in a survey that
includes a new index of depression?
A previously validated measure of depression
Open-ended questions that ask for details about responses
Multiple forms of the same index
