| Term 
 | Definition 
 
        | columns of a contingency table; number or columns relate to levels of the category being studied |  | 
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        | Term 
 | Definition 
 
        | rows of a contingency table; number of columns relate to levels of the category being studied |  | 
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        | Term 
 | Definition 
 
        | the row and column totals of the observed frequencies in a contingency table. |  | 
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        | Term 
 
        | rows-by-columns contingency table |  | Definition 
 
        | two-way frequency table: presents the frequency of each category formed by the intersection of the row and column variables in the table. |  | 
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        | Term 
 | Definition 
 
        | The frequencies in a contingency table obtained assuming that the two dimensions of the table are independent |  | 
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        | Term 
 
        | nonparametric tests and when they are used |  | Definition 
 
        | used when the assumptions of parametric tests are not met: the population is not normally distributed and the measurement scale used is nominal or ordinal.
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        | Term 
 | Definition 
 
        | used when we wish to makes inferences from the sample to the population |  | 
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        | Term 
 
        | chi-square test of independence |  | Definition 
 
        | the chi square used when a score is categorized on two independent dimensions |  | 
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        | Term 
 
        | chi square test of for goodness of fit |  | Definition 
 
        | used when a score is categorized on only one dimension |  | 
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