# coefficient

1. ### [r] coefficient that compares ellipses

I'm working on an undergraduate dissertation in Phonetics. (I am on a Linguistics programme so my knowledge of Statistics and Maths in general is rather shaky!) I am trying to demonstrate whether or not an intervention group of Spanish teenagers learn to pronounce English vowels accurately more...
2. ### More than 2 categorical variable+1 continuous variable as independent variable

I am a civil engineering student and have no relation with statistics. Now I am working on my master thesis and I have got to work on SPSS now, which I have no idea about. Tried to learn a lot from youtube and internet, but still I could not find a proper ans which will explain my problem 1...
3. ### VECM Help Required

Hi im constructing a vecm regression and need help interpreting the results. it would be much appreciated if you could helps me I'm testing determinants of inflation, I've constructed unit root test along with co-integration test and am now struggling to understand my vecm results. my...
4. ### Regression Coefficient Help

Hello, Thanks in advance for the help everyone, I'm new to this site and I really appreciate it. I am currently working on some research and have begun to evaluate my results. I have several multiple regressions and need help discussing the regression coefficients. The difficulty I am...
5. ### How to estimate one coefficient for several independent variables?

Hello, I want to make a regression in Stata with some of the independent variables constituting a dimension for which I want to estimate just one coefficient. So I somehow have to merge the variables into one variable or possibly a vector(?), but I have no clue how to do this. Can someone...
6. ### Reliability

How do I calculate reliability for something that I do not have an "exact" answer for? For example, in an observational setting with 2 observers counting the number of times eye contact is given for 2 different participants (total of 4 observances). There is no absolute answer for eye contact...
7. ### spline regression - plynomial coefficients

Hello, I have a problem with spline regreession in R. Suppose following: library(splines) K=c(14,20) plot(cars) reg=lm(dist~bs(speed,knots=c(K), degree=2),data=cars) Is it possible to get (somehow) spline coefficients? I would like to obtain something like this: for 0<speed<14 ...
8. ### Interpretation of coefficient differences across sample groups (please help!?)

Hello! Before I start the whole story, I am going to sumamrize my main question beforehand so the story will hopefully make more sense. Mainly, I want to now how to interpret the results of a regression which I ran in a manner requested by my professor. Next, I would want to know how to...
9. ### Help with total, explained, unexplained variation and other stat stuff.

I'm not sure what the total variation, explained variation and the unexplained variation mean. Given a group of data (x,y) how would I calculate? Also, what are the coefficient of determination and the standard error of the estimate? How are they calculated? Please explain. This part is...
10. ### Plotting regression coefficient over time

Dear everyone, Hi everyone, I am relatively new to stata and would deeply appreciate your help on this. I am trying to plot my main beta coefficient over time but am not really sure as to which commands I should use. My main dv and iv are fdi inflow and political tension and my data covers...
11. D

### Std Error of nonlinear regression coefficients

Hi There, I have a commercial NET dll computing nonlinear regression coefficients and their sigma values. However, I would like to compute the confidence interval for each coefficient. I believe that I need to compute first the standard error for each coefficient, but if I use...