Analysis of quantitative data - Bi- and trivariate analysis with data of the same measurement level
8 important questions on Analysis of quantitative data - Bi- and trivariate analysis with data of the same measurement level
What is an elaboration model?
What are the 4 possible outcomes of an elaboration model?
- Explanation; The relationship between two variables is spurious, because it dissapears when a test variables is introduced.
- Interpretation; a control variable is the mediating factor
- Specification; specifying conditions under which the original relationship exists.
What is the process for defining the elaboration model?
2. Construct the conceptual model
3. Formulate predictions
4. Check predictions and evaluate the hypothesis (falsification)
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What's the difference between conjunctive and disjunctive hypothesis?
A disjunctive hypothesis explains or interprets the relationship, in such a way there is no direct relationship anymore but us either spurious (explain) or mediating (interprete).
What are the three ways in which you can measure the strenght of a relationship between two variables?
- Correlation coefficient; calculation of correlation; between -1 and 1. This expresses how strong the linear relationship is.
- Regression analysis; finding linear relationship between two variables --> Y = a + bx in which Y is the dependent variable, and x the independent variable.
How can you dertermine the regression line?
What does a zero-ordered relationship mean?
What is a test variable?
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