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### 23 Cards in this Set

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 Bivariate Analysis -definition Used to test for differences between groups and to check for relationships between the variables Chi Square -definition- A statistical procedure determines whether the proportion of persons with some charateristic is the same for 1 group as for another. When is Chi Square used? When the DV is categorical and it needs to be analyzed with a nominal independent variable If the Chi Square is small... If the Chi Square is LARGE... Small = small insignficant, little to no association between variables LARGE = signficant association between variables When the Chi Square is used to determine how the proportions of sample compare with the population you are doing a test called... Goodness of Fit Goodness of Fit helps researchers to determine what? To determine whether to Reject or Retain H0 by stating whether the sample is signficantly different Chi Square can be used with what kind of data? Nominal and Ordinal Chi Square can NOT be used with what data? Interval-level unless categories are created You would use a p <.01 or p<.001 if... It was important the results were trustworthy You could use a p<1.0 if... The sample is an exploratory study Other names for a Chi Square Table... 1) Cross-Tabulation 2) Contingency Table Contingency Table -definition- 2x2 2 variables, each having 2 responses A Chi Square allows for what... A researcher to have enormous flexibility and Have no limit on the number of categories Problems with too many categories... 1) Can be difficult to identify patterns and summarize data 2)Makes Chi Square less accurate Phi A statistic unaffected by sample size and measures between a nominal or ordinal Phi can vary from -- to-- and must be a _x_ table. from 1 to 0 and be a 2x2 Contingency Coefficient -definition- When you are measuring the strength of association in table that is larger than 2x2 Ground rule for Contingency Coefficient. Can only be used when the number of rows is the same as the number of columns Cramers V -definition- Used to measure the strength of association with tables larger than 2x2 with different numbers of rows and columns Cramers V will always equal what? Will always equal Phi Cramers V cannot be interpreted as what... A proportion or perent of variation Elaboration Model -definition- Looking at data 1 variable at a time. Introducing an independent variable. Then examining via a 3rd variable. Degrees of Freedom -definition- how many cells were involved in the table