From concept to measurement
21 important questions on From concept to measurement
What is a contingency table?
What is a scatterplot?
What is the Pearson's R?
-1= perfect negative
+1= perfect positive
0= no correlation at all.
One of the most important advantages is: Direction and strength of linear correlation with one number.
When all the dots are close to the line, it is a strong corrolation. When the dots are more devided it is a weaker correlation
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What is a perfect relation?
When do we use spearman's rho?
Less sensitive to outliers than pearson’s r
Can be used with:
Ordinal + Ordinal
Ordinal + Scale
Scale + Scale
When do we use Kendall's tau-c?
Only use this when the number of categories is relatively small
Can be used with:
Ordinal + Ordinal
When do we use Cramers V?
Can only be used with:
Nominal+Nominal
What are the four synoniems for Cause?
- Exogenous
- Treatment
- X
- Independent
What are the four synoniems for Effect?
- Endogenous
- Consequence
- observation
- Y
- Dependent
What is the Elaboration Model?
What is a Test variable?
Example: Having discovered a relationship between education and prejudice, we might hold SEX constant by examining the relationship between education and prejudice among men only and then among women only. In this example, SEX would be the test variable
What are partial relationships or partials?
What is the zero-order relationship?
What is meant with explanation in the context of elaboration?
What is menat with specification in the context of elaboration?
What is meant with interpretation in the context of elaboration?
What is a suppressor variable in the context of elaboration?
What is distorter variable in the context of elaboration?
What is an Ex post facto hypothesis?
What is a Sampling Error?
What is a population?
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