incidence rate
would be used if we want to measure the proportion of health workers who acquire Ebola from working with Ebola
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percentile
indicates the percent of the population that falls below a certain value
standard score
for a particular data point, represents the distance from the mean in terms of standard deviations
Analysis of variance (ANOVA)
is used to determine if three or more sample means are statistically not all equal
norm reference test
is a test that compares an individual to other individuals on the bell-shaped curve
criterion referenced test
compares an individual to certain defined standards
observed score
is the score actually achieved by an individual on a test.
true score
is the average score an individual would achieve if he or she were to take the test infinite times
random measurement error
can eventually be eliminated over time as the number of tests increases (according to Classic Test Theory)
systematic measurement error
occurs when something that is entirely unrelated to the test is affecting test scores
item response theory
takes into account that different questions may have different levels of difficulty
reliability index
measures how well a person's observed score on a test represents that person's true score
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test retest method
applies when the same test is given to the same sample on two different occasions
parallel forms method
applies when two versions of a test are given at the same time to each of half of a sample of students
item analysis
is the study of the results of each individual question on a test
T
Results-based management is built upon partnership and inclusiveness
F
Ethical issues are not a concern with the use of Big Data
T
A problem with Big Data is that there's too much of it
T
Data mining will often find trends, but usually overlooks the underlying causes
F
Index numbers typically relate today's prices to those expected in the future
F
An index number of 100 indicates that the price or quantity has increased 100 times since the base period
T
The Consumer Price Index is the main measure of inflation in the U.S.
F
A ratio and a proportion are the same thing
F
Prevalence and incidence are the same thing
T
An incidence rate would be useful for assessing if a treatment or preventative measure is effective in slowing the spread of a disease
F
For a student who scores in the 25th percentile, this means that only 25% scored better than this student
F
Hilda scored 75 on a test with a mean of 50 and a standard deviation of 25. On a second test she scored 60 on a test with a mean of 40 and a standard deviation of 10. Hilda's Z-score is higher for the first test.
T
Z-scores always have a mean of 0 and a standard deviation of 1
T
For an ANOVA, the larger the F-ratio, the more likely there is a statistically significant difference
T
A standard score is a type of norm-referenced measurement [Show Less]