Santiago Valdivieso

11 Questions 6 Answers 0 Followers

Questions related from Santiago Valdivieso

Minimun number of observations per category of response?

In a regression with a database with N=1200, I have an independent dummy variable that measures if the surveyed is unemployed or employed. The variable has the following...

01 January 2020 7,006 5 View

Can I make mediating effects analysis by seeing how the inclusion of a variable reduces the significance of my variable of interest?

In my investigation about the determinants of subjective well being (life satisfaction) I have some variables that measure the access to food and also other variables that measure the affections...

12 December 2019 664 3 View

Can I make a mediation analysis just with my variables of interest or do I have to include, also, the control variables?

In order to analyze if there is a mediation effect using Baron & Kenny's steps, is it necessary to include the control variables of my model, or is it enough to do the analysis just with the...

12 December 2019 9,097 6 View

Do I have to use a Probit model when trying to analyze a possible mediation effect that includes a dummy variable?

I have a dummy varible as the possible mediatior of a relationship in my model. By reading the Baron and Kenny's (1986) steps, I see that, in the second one you have to test the relationship...

12 December 2019 1,946 3 View

How to know if the inclusion of some independent variables contributes to the explanation of the variance of my dependent variable?

I have seen that some researchers just compare the difference in R2 in two models: one in which the variables of interest are included and one in which they are excluded. However, in my case, I...

12 December 2019 5,230 3 View

Is the F test useful when one of the variables of the group I'm studying is already significative?

Reading Wooldridge's book on introductory econometrics I observe that the F test allows us to see if, in a group, at least one of the coefficients is statistically significant. However, in my...

12 December 2019 3,710 6 View

What are the possible interpretations of the next regression case?

I have reported life satisfaction as my dependent variable and many independent variables of different kinds. Of them, one is the area in which the individual lives (urban/rural) and other is the...

12 December 2019 2,136 7 View

How to know if the difference of the same variable in a different models is statistically significant?

I have two models. The second one is the first plus more control variables. I see that the coefficient of a variable that I have in the two models has decreased in this second model and I want to...

12 December 2019 5,302 3 View

How to cite a part of a literature review?

There are literature reviews which cite 100 social experiments. I want to use 6 of the results they organized. Should I cite the whole literature review or just the original papers?

11 November 2019 9,526 1 View

Is a big number of independent variables problematic in a investigation about the determinants of a social outcome?

I'm investigating the determinants of subjective well being in my country and I have a well endowed database in which I found a lot of environmental, psicosocial and political variables (+ the...

11 November 2019 3,077 14 View

No multicolinearity, but still a too sensible model: the inclusion of one variable makes my model a mess. Can endogeneity explain this?

I'm studying the determinants of subjectve well being in my country and I have reported satisfaction with life as my dependent variable and almost 40 independent variables. I ran multicolinearity...

11 November 2019 7,221 4 View