Examlex
Think of three different economic examples where cross-sectional data could be collected. Indicate in each of these cases how you would check if the analysis is externally valid.
Multicollinearity
A statistical phenomenon in which two or more predictor variables in a regression model are highly correlated.
Significance Level
The chance of incorrectly dismissing the null hypothesis in a statistical examination, commonly signified by alpha (α), when in fact it is correct.
Independent Variables
Variables in an experiment or study that are manipulated or categorized by the researcher to determine their effect on dependent variables.
Durbin-Watson Statistic
A test statistic used to identify the presence of autocorrelation (correlation of adjacent residuals) in the residuals from a regression analysis.
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