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  3. • define each type of variable: dichotomous,

• Define each type of variable: dichotomous, ordinal, categorical, continuous • Define the following study designs: Randomized...

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Basic Math

• Define each type of variable: dichotomous, ordinal,categorical, continuous • Define the following study designs:Randomized controlled trial, prospective cohort study, case-controlstudy, crossover study. • Define in dependent versus independentsamples.

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a Define each type of variable 1 dichotomous A dichotomous variable is one that takes on one of only two possible values when observed or measured The value is most often a representation for a measured variable eg age under 6565 and over or an attribute eg gender malefemale 2 ordinal An ordinal variable is a categorical variable for which the possible values are ordered Ordinal variables can be considered in between categorical and quantitative variables Example Educational level might be categorized as 1 Elementary school education 2 High school graduate 3 Some college 4 College graduate 5 Graduate degree 3 categorical a categorical variable is a variable that can take on one of a limited and usually fixed number of possible values assigning each individual or other unit of observation to a particular group or nominal    See Answer
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