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ESM (Stats) CH1,2&3 Vocabulary

Across
An investigation of one or more characteristics of a population.
Involves using sample data to draw conclusions about a population.
Divide a population into groups (clusters) and select all of the members in one or more, but not all, of the clusters.
A count or measure of an entire population.
Assigned to different treatment groups through random selection.
The science of collecting, organizing, and interpreting data in order to make decisions.
A process of randomly assigning subject to different treatment groups.
Neither the subject nor the experiment knows if the subject is receiving a treatment or a placebo.
Repetition of an experiment using a large group of subjects.
Occurs when a subject reacts favorably to a placebo when in fact the subject has been given a fake treatment.
A treatment is applied to part of a population called a treatment group, and responses are observed.
Down
A subset, or part, of the population.
A researcher observes and measures characteristics of interest of part of a population.
Every member of the population has an equal chance of being selected.
Divide a population into groups (strata) and select a random sample from each group.
Consist of information coming from observations, counts, measurements, or responses.
Choose only members of the population that are easy to get. (No recommended. Often leads to biased studies.)
Choose a starting value at random. Then choose every 00th number of the population.
Occurs when an experiment cannot tell the difference between the effects of different factors on a variable.
Numerical measurements or counts.
Divide subjects with similar characteristics into blocks, and then within each block, randomly assign subject to treatment groups.
A numerical description of a population characteristic.
Involves organizing, summarizing, and displaying data. E.G. Tables, charts, averages.
Count or measure of part of a population and is more commonly used in statistical studies
The collection of ALL outcomes, responses, measurements, or counts that are of interest.
A Technique where the subject does not know whether he or she is receiving a treatment or a placebo.