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PHC 6013: Measures

About making measurements

TermDefinition
Continuous variables Quantified on an infinite scale. Can generate counts, proportions, medians, means, and standard deviations.
Discrete variables A scale whose units are limited to integers. Can generate counts, proportions, medians, means, and standard deviations.
Dichotomous variables Categorical variables with two possible values
Nominal variables Have categories that are not ordered (ex. blood type). Can generate counts and proportions.
Ordinal variables Have categories with intervals that are ordered but not quantifiable (ex. degree of pain). Can generate counts, proportions, and medians.
Dichotomous variables Categorical variables with two possible values
Sensitive measurement Can detect differences in a characteristic that are important to the investigator
Specific measurement Represents only the characteristic of interest
Measurements should be: 1) Sensitive 2) Specific 3) Appropriate 4) Distribution of responses 5) Objective
Created by: AlneciaPHS