1. 10-14-2010
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# Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

1. ### Poisson regression for count data

I need to fit a model to study the severity of a bicycle accident based on other explanatory variables. The data description is X1: is the use of...

• Replies: 1
• Views: 364
07-10-2016, 11:21 AM
2. ### Problem with Data analysis on Likert Scale!

Hello John, Im a student of Business studies and am working on a research project titled as "Impact of Physical environment on Employee...

• Replies: 10
• Views: 12,584
07-09-2016, 04:44 AM
3. ### What's the meaningful difference between an odds ratio and a regression coeffecient?

• Replies: 0
• Views: 282
07-08-2016, 10:49 PM
4. ### Data set simulation

• Replies: 1
• Views: 329
07-07-2016, 02:12 PM
5. ### Multinomial logistic regression - testing assumptions

Hello everyone, I'm trying to perform an MLR with 4 continuous predictors for one ordinal dependent. I've tested my assumptions for the MLR except...

• Replies: 8
• Views: 618
07-07-2016, 10:02 AM

Hello, I need to carry out a Hausman-McFadden test before I run a multinomial logistic regression on my data. While I've successfully run an...

• Replies: 0
• Views: 204
07-07-2016, 08:08 AM
7. ### Normality / QQ-Plot in Generalized Linear Models (GLM)

Hi, sorry if this is a frequent question, but I did not find an appropriate answer: If I have a GLM with a non-normal distributed outcome...

• Replies: 8
• Views: 702
07-06-2016, 08:59 PM
8. ### Interaction effect: only main effects significant

Dear community, I'm running a regression model to test, if there is a difference between the Eastern and Western Germans supporting redistribution...

• Replies: 6
• Views: 509
07-04-2016, 11:26 PM
9. ### Need help doing complex transformations on variables to do a regression

I need help doing some transformations on variables--I am kind of real rusty in logarithms and that may be the way to set up this complicated...

• Replies: 0
• Views: 313
07-03-2016, 01:33 PM
10. ### Dis./Avantadges of estimating of binary response model with OLS

In the Maximum Likelihood Estimator context, I can't find answers for those two questions: - What are the advantages and disadvantages of...

• Replies: 8
• Views: 644
07-02-2016, 01:47 PM
11. ### Comparing regression coefficients between groups

Hello! I am a psychology student and I’m doing a research which I need help with. The research is about parenting stress in parents of children...

• Replies: 5
• Views: 421
07-01-2016, 04:10 PM
12. ### test of non-linearity

I am reading an interesting econometric book where the author suggests testing if non-linearity exist by specifying a quadratic term, if its...

• Replies: 15
• Views: 1,081
06-30-2016, 03:24 PM
13. ### Generalized Linear Model: help interpeting interaction

Hello! I apologise in advance if I missed it, but I couldn't find an answer in previous threads. I run a generalized linear model with 1...

• Replies: 1
• Views: 303
06-29-2016, 08:54 AM
14. ### Effect size+power calculations for spotlight analyses

EDIT: I mistakenly typed "spotlight" when I really meant "floodlight". Corrected for that. I have a question about calculating effects sizes and...

• Replies: 2
• Views: 325
06-28-2016, 02:45 PM
15. ### Regression assumptions

this comes from Introduction to Econometrics by Stock and Watson. On page 161 they note in a footnote "....it might be helpful to note that some...

• Replies: 9
• Views: 551
06-27-2016, 06:48 PM
16. ### p-value for logistic regression

How do I find the p-value for logistic regression. For example , for a glm output I : z -value : 1.32 P ( > | Z | ) = 0.186696 If it were a...

• Replies: 3
• Views: 439
06-27-2016, 12:11 PM
17. ### Relative impact

I circle back to this question every few years, it is becoming critical these days and my readings have not turned up a strong consensus on this...

• Replies: 9
• Views: 807
06-27-2016, 12:02 PM
18. ### Nonlinear Canonical Correlation Analysis

Hello In the application of Nonlinear Canonical Correlation Analysis I was really confused about "weights and component loadings" !! can any one...

• Replies: 0
• Views: 273
06-27-2016, 12:28 AM
19. ### Compare the estimated model with the model with intercept-only

The question is: How do the test to compare the estimated model with the model with intercept-only ? How can I comment on the result ? I think we...

• Replies: 5
• Views: 537
06-26-2016, 01:08 PM
20. ### Change regression model ($x^*_i = x_i -10$)

Hi there.:wave: I'm solving an exercise on multiple linear regression. Near the end I will be asked for the same data as the previous model, it is...

• Replies: 5
• Views: 432
06-26-2016, 05:18 AM
21. ### Estimation of count regressors that tend to only increase with time

Hello dear forum members, I am seeking you comments on the following issue that I noticed in the project that I am working on. So, in 2014 I...

• Replies: 0
• Views: 216
06-25-2016, 11:27 AM
22. ### Find costant that satisfies the variance

Hi, I have this regression model : Y_i=B_1+B_2logx_i+2e_i e_i~N(0,σ2) I am asked to find the constant :

• Replies: 0
• Views: 256
06-24-2016, 04:02 AM
23. ### Supporting References for my analysis choice level vs. difference regression

All, I need some help in finding some good references which help me to document the regression approach I used. I am analyzing the influence of...

• Replies: 0
• Views: 305
06-22-2016, 09:13 AM
24. ### Variable transformation in OLS regression

Hi there, I have a question related to the transformation of independent variables in an OLS regression. More specifically: When I transform...

• Replies: 7
• Views: 1,595
06-20-2016, 07:48 PM
25. ### AUC below 0.5

Hi, I am calculating area under the curve (AUC) values for the individual independent variables of a conditional logistic regression model. I am...

• Replies: 3
• Views: 636
06-20-2016, 01:23 PM
26. ### Effective DoF with lag1 autocorrelated data...how to actually incorporate ?

Hi all, I have some time series data that is auto-correlated, and I am trying to account for in my correlation analysis. I have found out how to...

• Replies: 2
• Views: 377
06-20-2016, 03:41 AM
27. ### Can someone help me interpret this data?

I'm performing multiple regression for an international relations thesis regarding various predictor variables and the outcome of intervention in...

• Replies: 5
• Views: 436
06-19-2016, 07:58 PM
28. ### Pooled GLS and POLS

Hello everyone, This semester I'm studying, OLS, GLS, RE, FE, MLE, and a lot of beautiful concepts :D. But I get a little bit concerning the...

• Replies: 0
• Views: 347
06-18-2016, 08:57 AM
29. ### Two categorical variables, one continuous dependent variable

Hi, I want to check whether linear regression is the statistical tool I need and ways of checking whether my data is appropriate for this...

• Replies: 3
• Views: 499
06-17-2016, 01:23 PM
30. ### CI for Dependent Variable in Multiple Linear Regression

I have a regression model but I want to get a 95% confidence interval of the dependent variable for given values of the independent variables. I...

• Replies: 1
• Views: 204
06-17-2016, 12:58 PM
31. ### Regression Analysis from R output

• Replies: 0
• Views: 281
06-17-2016, 10:50 AM
32. ### interaction continuous*dummy:possible to treat continuous variable as the moderator?

Hey everyone. This is my first post here so please be kind to me :) . For my thesis my aim is to run a moderation analysis between organizational...

• Replies: 1
• Views: 350
06-17-2016, 05:42 AM
33. ### Consolidation of items for regression analysis

Hello everyone! I am a stats newbie and have a very basic question. Please forgive me if the question may seem too foolish. I wanted to conduct...

• Replies: 1
• Views: 318
06-16-2016, 10:12 PM
34. ### General guidance on interpreting residuals and diagnostics for linear regressions

Now that I'm more comfortable with regression (in SAS) and understand the assumptions needed for linear regression, I'm able to run simple models of...

• Replies: 5
• Views: 471
06-14-2016, 08:18 AM
35. ### Multiple Regression Analysis - Two independent variables, one w/same values

Post closed.

• Replies: 4
• Views: 390
06-13-2016, 10:23 AM
36. ### Causal mediation analysis with lagged endogeneous regressors

Hello dear forum members! So, in the study I am currently working on, I have the following (simplified) Poisson panel model with fixed-effects...

• Replies: 1
• Views: 288
06-13-2016, 12:56 AM
37. ### Interpret Transformed Independent Variables

Dear Forum, I ran a logistic regression and one of my Independent variables was transformed with a LG10. I know from normal non transformed...

• Replies: 1
• Views: 266
06-12-2016, 01:15 PM
38. ### My First Model

Hello, I am doing a Master's and I am at the dissertation stage, and have to write and test a model empirically. However I am not sure about...

• Replies: 1
• Views: 342
06-11-2016, 02:44 PM
39. ### Orthogonal-polynomial contrasts

Hi there, During my studies, I always learned that, when you have an independent ordinal variable, you could include it into your regression...

• Replies: 0
• Views: 217
Tux
06-09-2016, 05:56 PM
40. ### Detecting and adjusting for heteroskedasticity in ordinal logistic models

Does anyone know how to check whether heteroskedasticity is present in an ordinal logistic regression analysis? And, if present, how can it be...

• Replies: 0
• Views: 246
06-09-2016, 04:13 AM
41. ### Confidence intervals comparison for linear and quadratic slopes?

Hello, I am using regression analyses to evaluate changes in several different cognitive functions across the life span. In most cases, the...

• Replies: 0
• Views: 240
06-08-2016, 10:09 PM
42. ### Logistic Regression with interactions and contrasts

Hello All, I need some advice for choosing the correct model. I have 3 binary variables: Risk (0 = the person doesn't take financial risks, 1 =...

• Replies: 5
• Views: 598
06-08-2016, 10:37 AM
43. ### SQReg demonstration

Hello everyone, i need help with this demonstration: SQReg = B1^2*Sxx Someone can help?

• Replies: 1
• Views: 365
06-06-2016, 01:22 PM
44. ### Constant in linear regression

Hey guys, Need help in Linear regression: I have a dataset of 70 tumors that during resection we used an electric measurement to estimate a...

• Replies: 0
• Views: 271
06-05-2016, 11:47 PM
45. ### Interpretation of continuous interaction term

Hi all, I have a question regarding the interpretation of a squared interaction term in the following model: Y=β0+β1X+ β1X^2 + β2Z+ β3 X^2Z ...

• Replies: 0
• Views: 329
06-05-2016, 09:13 AM
46. ### Need help to choose right statistical analysis

Dear all, I have one dependent variable (Y) and 3 independent variables (X1, X2, X3). All dependent and independent variables are continuous. ...

• Replies: 0
• Views: 218
06-05-2016, 04:30 AM
47. ### Interpreting dummy variables.

I did not create the following variables, the state I worked for did...They have one variable coded W if you are white 0 otherwise. A second variable...

• Replies: 0
• Views: 241
06-04-2016, 06:59 PM
48. ### Beta weights and correlations

Dear all, I have used regression to explain a dependent variable with a number of independent variables. I expected independent variables which...

• Replies: 0
• Views: 223
06-04-2016, 05:05 AM
49. ### How to handle poor reporting unstandardised\standardized coefficients?

Hi, I have several times problem how to distinguish what is reported in clinical journals in relation to regression analysis. Frequently authors...

• Replies: 1
• Views: 296
06-01-2016, 06:56 PM
50. ### Is this Multicollinearity?

Hi guys, im relatively new in this forum. I have a question, i am using multiple regression analysis for my thesis. The result shows the P-value is...

• Replies: 8
• Views: 425
06-01-2016, 08:44 AM
51. ### Can we really(theoretically) generalize fixed regressor linear regression?

If we have stochastic regressors, we are drawing random pairs $(y_i,\vec{x}_i)$ for a bunch of $i$, the so-called random sample, from a fixed but...

• Replies: 3
• Views: 432
05-30-2016, 10:16 PM
52. ### Time-varying covariates in linear mixed models/multilevel models

Hi! I am a Norwegian phd student exploring the effects of nocturnal road traffic noise exposure in children. One of the research questions is...

• Replies: 0
• Views: 401
05-30-2016, 05:49 PM
53. ### Mediation analysis - an issue of two opposing (contrary) effects

Hey! I would be very grateful about any advices or comments on an issue I have recently come across. We tested a simple mediation analysis,...

• Replies: 0
• Views: 210
05-30-2016, 03:52 PM
54. ### out of sample

Hi There I have 2500 data with 2 sample. one index and another stock. i've done goodness of fit and regression analysis on it.now I've been asked to...

• Replies: 3
• Views: 334
05-30-2016, 08:05 AM

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