Tri-variate analysis: In some cases, the researcher tries to find out a third variable which is affecting the relationships between the two variables. In that case the researcher has to examine the bi-variate relationship between the two variables and examine the bivariate relationship by controlling the effects of the third variable.
This is done in two ways:- By preparing partial tables and examine the bi-variate relationship.
- By comparing the coefficient of partial correlations
For example, you will make multiple tables (that will provide High, Medium and Low values) representing the levels of socio-economic status and life satisfaction of the respondents.
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