Ibrahim H Acar

5 Questions 10 Answers 0 Followers

Questions related from Ibrahim H Acar

Different intercept value in main effects and interaction models ?

In a random intercept regression model, I've run interaction model by adding interaction terms to main effects model. So first step I've run main effects and then added interaction terms to this...

14 December 2018 1,471 2 View

Mother's Level of Education in Analysis as categorical or continuous variable?

I have a variable called "Mother's Education Level" and it has 7 different levels from eighth grade to college graduate. Should I consider this as continuous or categorical variable in my...

02 January 2016 5,394 20 View

Why does sign change in interaction term after adding control variables?

When I added some control variables at Level 1 in a Multilevel Model, my interaction term changes its sign from positive to negative as well my main effect of one variable. Why is that happening?...

07 December 2015 8,492 5 View

Power analysis for Multilevel Modeling.

I am looking for ideas and resources about how to run power analysis for multilevel modeling (2-level model)? If you could refer to any Mplus or SAS syntax, that would be great. Thanks

03 November 2015 5,899 8 View

Is there any specific theory about development of children's self-regulation ?

I am looking for a theory that explains how young children develop self-regulation including behavior and attentional regulation.

01 July 2015 5,582 7 View