Fine Design
A single individual or object that receives a treatment in a study.
What is an experimental unit?
This type of sampling would include dialing the first 20 names in the yellowbooks to infer about the neighborhood as a whole.
What is convenience sampling?
This type of bias occurs when one or several parts of the population are not sufficiently sampled from.
What is undercoverage bias?
What is Titanic?
This standardized score tells you how many standard deviations from the mean an observation is.
What is a Z-score?
This is an experimental group used to compare the factor to for effectiveness.
What is the control group?
This is the gold standard in sampling, and is the most straightforward way to conduct an unbiased study.
This occurs when a mere 45 out of 1000 surveys were returned.
"Yo, Adrian!"
This term represents the standard deviation squared.
What is variance?
This method is used so that the subjects are unaware of the treatment (who gets a placebo or the real treatment).
What is blinding?
This type of sampling would include listening to radio callers and extending those opinions to the general public.
What is voluntary response bias?
When the chance of being selected for a sample is based on the size of different groups in the sample.
What is size bias?
"Are you not entertained?"
This type of graph shows potential correlation between two variables.
What is a scatterplot?
This experimental uses many subjects to quantify the natural variation in the response.
What is replication?
This type of sampling group could be considered a heterogenous microcosm of the population.
What are cluster(s)?
This type of bias may occur when asking personal, embarrassing, or controversial questions in surveys.
What is incorrect response bias?
"I never look back, darling. It distracts from the now.”
What is The Incredibles?
This measure of central tendency is resistant to outliers.
What is the median?
This occurs when the effect of the variable on the response cannot be separated from the effects of the factor being tested.
What is confounding?
This is the reason we sample randomly.
What is in order to get an unbiased glimpse of the population parameter?
This type of bias involves a skew in the availability of data, such that observations of a certain kind are more likely to be reported.
What is reporting bias?
"Take her to the moon for me."
What is Inside Out?
This variable gives the proportion of variation in y (response) that is explained by the relationship of (x, y)