Questions and CORRECT Answers
Range - CORRECT ANSWER -Subtracting the lowest value of a data set from the highest value of
a data set results in this measure.
Mean - CORRECT ANSWER -
Content Validity - CORRECT 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 - CORRECT 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
Interrater Reliability - CORRECT ANSWER -the measure that tells you how much two raters agree
on their judgments of some outcome; computed by number of agreements by number of possible
agreements
Interquartile Range (IQR) - CORRECT ANSWER -represents 50% of distribution; IQR = Q3 - Q1;
helps determine outliers
Which of the following is concerned with monitoring estimates of present performance and predictions of
future performance?
Criterion validity
Content validity
Internal validity
Construct validity - CORRECT ANSWER -Criterion validity
High school class rank is highly correlated with college GPA. This is an example of what type of validity?
, Concurrent validity
Predictive validity
Content validity
Construct validity - CORRECT ANSWER -Predictive validity
A survey for kindergartners asked about their favorite color. The children were asked to check the box
corresponding to blue, red, green, yellow, or orange. What is the scale of measurement for this question?
Interval
Ratio
Ordinal
Nominal - CORRECT ANSWER -Nominal
What level of measurement is household income?
Ordinal
Nominal
Interval
Ratio - CORRECT 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 - CORRECT 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?