Andrés Fandiño-Losada

6 Questions 13 Answers 0 Followers

Questions related from Andrés Fandiño-Losada

Is it mandatory to adjust for sample survey design when analyzing regression models from complex surveys?

Dear RG Members. I am using the Demographic & Health Surveys (DHS) data in a research about children's maltreatment. As you know, DHS data have a complex sampling design with strata and...

23 April 2016 6,961 3 View

How to calculate prevalence of a disease with missing data in the test of the survey?

Dear researchers. We are doing a study for estimating the prevalence of a disease diagnosed by a blood sample test. Some participants have answered the survey questionnaire but have refused the...

01 March 2016 2,514 3 View

What is the most suitable approach for Confirmatory Factor Analysis (CFA) with non-normal data?

Hi, I am testing the factorial construct validity of an instrument which includes 15 Likert-type items. These are non-symmetrical. My sample size is around 600. Using Confirmatory Factor Analysis...

20 June 2015 4,146 8 View

How can I do exploratory Factor Analysis and non-multivariate normal data?

Hello RG researchers. The theory says that data from items for Exploratory Factor Analysis (EFA) should have a multivariate-normal distribution. But I am working with Likert type items and their...

24 February 2015 4,419 8 View

Is it appropriate to include the clustering variable as a confounder variable in multilevel mixed models?

I am doing a study about an intervention targeting pupils of schools, in different cities. Thus, it is a multilevel structure and I am using mixed models for regression analyses. Contextual...

17 July 2014 6,372 4 View

Is there an alternative to the Cronbach's alpha for scales that have different numbers of items?

I would like to compare the psychometric properties of different instruments focusing on the same concept. But the instruments have different numbers of items. I am interested in reliability, but...

01 April 2014 3,018 35 View