Margarita Navas

6 Questions 3 Answers 0 Followers

Questions related from Margarita Navas

Is it necessary to explain the concept for which you want to ask the attitude/perception?

Hello, I want to apply an online survey of the attitude/perception for sustainable agricultural products, is it necessary to put a short explanation before the survey on what sustainable...

16 October 2021 9,994 3 View

In Choice experiment, can I have 2 alternative status quo in a choice set?

Hello, I designed a choice experiment of 3 attribute + payment attribute, with support.CEs package. The choice set have 2 improvement alternative (alt.1 and alt.2) + 1 alternative status quo...

23 April 2021 4,201 7 View

Which is the best regression for a 5-point likert scale?

Hello, I have as dependent variable a 5-point likert scale of 10 items, and two independent variable of 10 and 8 items. So which is the best regression or analysis to use for the mean of this...

21 April 2021 9,418 3 View

A choice experiment can have fixed options?

Hello, For example, I want to know if people prefer Coca-Cola or PepsiCo, so I have 2 alternatives with 2 levels: Coca (Coca-Cola and Sprite) and PepsiCo (Pepsi and 7up), and compare them between...

07 March 2021 7,553 3 View

Years as continuous variable?

Hello, Can I use "years" as a continuous variable ("years" as calendar years from 1984 to 2014) to see if NDVI (normalized difference vegetation index), of the same area at the same time...

07 September 2020 8,418 3 View

Mlogit package R, system is computationally singular: reciprocal condition number?

Hello, I am trying to analyze some data from a choice experiment. I want to use the "mlogit" package. However, I have an error in the MNL function. I tried to find solutions in specialized sites...

15 July 2020 3,618 0 View