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Box Plot - 🧠ANSWER ✔✔A graph that displays both the frequencies and
the distribution of observations. It is useful for comparing two distributions.
Case-Control - 🧠ANSWER ✔✔An observational study that begins with
patient cases who have the outcome or disease being investigated and
control subjects who do not have the outcome or disease. It then looks
backward to identify possible precursors or risk factors.
Case-Series Study - 🧠ANSWER ✔✔A simple descriptive account of
interesting or intriguing characteristics observed in a group of subjects.
, Cohort - 🧠ANSWER ✔✔A group of subjects who remain together in the
same study over time.
Cohort Study - 🧠ANSWER ✔✔An observational study that begins with a set
of subjects who have a risk factor (or have been exposed to an agent) and
a second set of subjects who do not have the risk factor or exposure. Both
sets are followed prospectively through time to learn how many in each set
develop the outcome or consequences of interest.
Correlation Coefficient (r) - 🧠ANSWER ✔✔A measure of the linear
relationship between two numerical measurements made on the same set
of subjects. It ranges from -1 to +1, with 0 indicating no relationship. Also
called the Pearson product moment.
Cross-Sectional Study - 🧠ANSWER ✔✔An observational study that
examines a characteristic (or set of characteristics) in a set of subjects at
one point in time; a "snapshot" of a characteristic or condition of interest;
also called survey or poll.
False-Negative (FN) - 🧠ANSWER ✔✔A test result that is negative in a
person who has the disease.