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14 Cards in this Set

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Validity
A measure is valid if it actaully measures what it purpurts to measure
Reliabilty
It gives the same results again and again if the measure is repaeted. It has to do with how dependable a mirror mearues
Random Error
If on average the measure of a concept tend to be true, we can assume that any error encourtered is random.
Independent variable
Causes the dependent variable, (column)
Dependent variable
Influences the indpendent variable, (rows)
Level of measurement
The realtionship among the values that are assigned to the attributes for a variable
(Party Affiliation)
Alternative hypothesis
Testing to see if there is a relationship between tow variable
Nominal Measurement
Categorical and non quantative

Politcal ideology, ethnicity religion
Median
The middle of the spectrum, 50% is on one side and 50% is on the other.
Mode
Means the most frequent response
Mean
The average betwen two different variables. If you were to total the sum of all the variables and then divide them.
Null Hypothesis
There is no relationship between the variables.
Ordianl measurement
Rank on some dimension wih out knowing # of of options.
Interval measurement
measures the diffeence between respondent.

aGE, YRS IN NM)