Santiago Valdivieso

10 Questions 4 Answers 0 Followers

Questions related from Santiago Valdivieso

How to replicate an index?

I have a dataset with socioeconomic information of the poorest households of a country. Each observation is associated with a vulnerability index (in a 0-100 scale) calculated using some of the...

24 May 2021 7,846 2 View

How to calculate the necessary sample size for a subgroup descriptive analysis?

I want to do a descriptive analysis using the World Values Survey dataset which has an N=1200. However, even thought I have searched a lot, I haven't found the methodology or a tool to calculate...

18 November 2020 1,665 4 View

What does it really mean to "hold other variables constant" in a regression?

To illustrate my point I present you an hypothetical case with the following equation: wage=C+0.5education+0.3rural area ( Where the variable "education" measures the number of years of...

11 July 2020 3,000 12 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...

29 December 2019 5,428 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...

20 December 2019 1,485 3 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...

20 December 2019 3,260 3 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...

08 December 2019 8,458 7 View

Can a model be overfitted even when N is very large?

I have a well endowed database with almost 29 0000 observations and I want to make an analysis with more than 50 variables. What are the problems that can arise from this situation? Can the model...

07 December 2019 2,192 7 View

Why to use the logarithm of the household size?

In a regression, I'm using household income and household specific expenditures as independent variables, both with a natural logarithmic transformation, and I want to control them by the...

24 November 2019 7,731 6 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...

05 November 2019 6,152 13 View