HCD 300 EXAM 1 QUESTIONS AND
ANSWERS ALL CORRECT
What level of measurement is household income?
Ordinal
Nominal
Interval
Ratio - Answer- Ratio
A researcher divided subjects into two groups according to gender and then selected
members from each group for her sample. What sampling method was the researcher
using?
Stratified
Cluster
Random
Systematic - Answer- Stratified
Researchers want to determine the percentage of students who own iPhones and
Android cell phones. They go to a popular spot on campus and ask first 100 students
who pass what type of cell phone they own. What type of sampling method is this?
Cluster
Convenience
Stratified
Random - Answer- Convenience
If a measure is consistent over multiple occasions, what type of reliabiility does the test
have?
Internal validity
Inter-rater reliability
Construct validity
Test-retest reliability - Answer- Test-retest reliability
Reliability is concerned with:
Generalizability
Consistency
Accuracy
Error - Answer- Consistency
, Validity is concerned with:
Error
Consistency
Generalizability
Accuracy - Answer- Accuracy
Which of the following measures of central tendency can be used for nominal level
data? (choose one or more)
Standard deviation
Mean
Mode
Variance - Answer- Mode
Hospital administrators want to determine the average satisfaction for patients receiving
care in the ER over the last month. The list of all ER patients over the last month is
entered into a computer program which uses an algorithm to randomly select 100
patients. Surveys are then sent to those patients. What type of sampling method is this?
Stratified Random
Multistage cluster
Systematic Random
Simple Random - Answer- Simple Random
Researchers administer an IQ test to a group of high school students. They then
correlate the scores on the IQ test with the student's current high school GPA. This is an
example of what type of validity?
Concurrent validity
Predictive validity
Construct validity
Content validity - Answer- Concurrent validity
Range - Answer- Subtracting the lowest value of a data set from the highest value of a
data set results in this measure.
Content Validity - Answer- when you want to know whether a sample of items truly
reflects an entire universe of items in a certain topic; the property of a test such that the
test sample the universe of items for which the test is designed (most often used with
achievement tests)
Concurrent Criterion Validity - Answer- when you want to know whether test scores are
systemically related to other criteria that indicate the test taker is competent in a certain
area; assesses whether a test reflects a set of abilities in a current or future setting
ANSWERS ALL CORRECT
What level of measurement is household income?
Ordinal
Nominal
Interval
Ratio - Answer- Ratio
A researcher divided subjects into two groups according to gender and then selected
members from each group for her sample. What sampling method was the researcher
using?
Stratified
Cluster
Random
Systematic - Answer- Stratified
Researchers want to determine the percentage of students who own iPhones and
Android cell phones. They go to a popular spot on campus and ask first 100 students
who pass what type of cell phone they own. What type of sampling method is this?
Cluster
Convenience
Stratified
Random - Answer- Convenience
If a measure is consistent over multiple occasions, what type of reliabiility does the test
have?
Internal validity
Inter-rater reliability
Construct validity
Test-retest reliability - Answer- Test-retest reliability
Reliability is concerned with:
Generalizability
Consistency
Accuracy
Error - Answer- Consistency
, Validity is concerned with:
Error
Consistency
Generalizability
Accuracy - Answer- Accuracy
Which of the following measures of central tendency can be used for nominal level
data? (choose one or more)
Standard deviation
Mean
Mode
Variance - Answer- Mode
Hospital administrators want to determine the average satisfaction for patients receiving
care in the ER over the last month. The list of all ER patients over the last month is
entered into a computer program which uses an algorithm to randomly select 100
patients. Surveys are then sent to those patients. What type of sampling method is this?
Stratified Random
Multistage cluster
Systematic Random
Simple Random - Answer- Simple Random
Researchers administer an IQ test to a group of high school students. They then
correlate the scores on the IQ test with the student's current high school GPA. This is an
example of what type of validity?
Concurrent validity
Predictive validity
Construct validity
Content validity - Answer- Concurrent validity
Range - Answer- Subtracting the lowest value of a data set from the highest value of a
data set results in this measure.
Content Validity - Answer- when you want to know whether a sample of items truly
reflects an entire universe of items in a certain topic; the property of a test such that the
test sample the universe of items for which the test is designed (most often used with
achievement tests)
Concurrent Criterion Validity - Answer- when you want to know whether test scores are
systemically related to other criteria that indicate the test taker is competent in a certain
area; assesses whether a test reflects a set of abilities in a current or future setting
