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Stats of doom

What is a Independent Variable? The variable that is manipulated; we assign things to it to see if there is a change.
What is a Dependent Variable? The variable observed to assess the effect of the treatment. This is always "the number of."
What is the correlational method? The method of studying two things at once.
What is population? The entire set of people interested in a study.
What is a sample? A subset of people selected from the population, used to represent the population.
What is a parameter? A characteristic that describes the population. ex: the average age of a population
What is a nominal scale? classifying by categories which are not related to one another
What is an ordinal scale? A scale that categorizes in an ordered sequence. ex: olympic medals
What is an interval scale? A scale of ordered categories that are all of the same size, however the zero on this scale is arbitrary and does not include zero as the amount being measured.
What is a ratio scale? It is an interval scale with an absolute zero.
What is a discrete variable? It consists of separate, indivisible categories.
What is a continuous variable? There are an infinite number of possible values that fall between any two observed values.
Created by: lexyismarchhare