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Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

  1. Exclamation please help : modelization

    Hello, I have a distribution which looks like a Khi-2 distribution, which model is most appropriate? I try linear regression, but normal...

    Started by elle1301‎, 07-21-2016 04:14 AM
    khi-2, regression
    • Replies: 5
    • Views: 123
    Yesterday, 03:13 AM Go to last post
  2. Weighted Cases- Binomial Logistic Regression in SPSS

    I am currently using the HCUP KID federal database which employs discharge weights to better estimate the true number of cases. For example, I have...

    Started by CharTam‎, 07-21-2016 02:34 PM
    • Replies: 0
    • Views: 102
    07-21-2016, 02:34 PM Go to last post
  3. Interaction term with no biological significance

    Hello friends, I've used a negative binomial GLM to look at how invertebrate abundance (over dispersed) is affected by seagrass density. There...

    Started by lken‎, 07-20-2016 01:47 PM
    • Replies: 3
    • Views: 105
    07-21-2016, 01:05 PM Go to last post
  4. Multiple regression analysis

    Hello All, Please help me with my multiple regression analysis result. My questionnaire consisted of 7 independent variables using 7 point...

    Started by Amrita‎, 07-21-2016 02:56 AM
    • Replies: 0
    • Views: 38
    07-21-2016, 02:56 AM Go to last post
  5. Ordinal mixed model assumptions

    I understand that I can perform a mixed model with ordinal outcome in spss using GENLINMIXED command I just want to know what are the assumptions...

    Started by wadder‎, 07-20-2016 04:48 PM
    • Replies: 0
    • Views: 49
    07-20-2016, 04:48 PM Go to last post
  6. interpreting interaction terms

    Hello, I hope that someone may be able to provide some help in my research. I have a 3-way interaction gender (male 0, female 1) by black (black...

    Started by derekcruise‎, 07-17-2016 01:25 PM
    • Replies: 7
    • Views: 238
    07-19-2016, 07:18 AM Go to last post
  7. I cant think of the name of a function.

    Hi all. this is my first post on talkstats. I'll try to be brief. I remember learning about comparing the top 30% and bottom 30% of results to...

    Started by igneggo‎, 07-19-2016 05:48 AM
    • Replies: 0
    • Views: 106
    07-19-2016, 05:48 AM Go to last post
  8. Analysing a designed experiment - is the theory wrong?

    hi, just had a scary thought . in all industrial DoEs we definitely have measurement error on the IVs. However I have always seen the OLS as the...

    Started by rogojel‎, 07-17-2016 12:06 AM
    • Replies: 11
    • Views: 310
    07-18-2016, 11:07 AM Go to last post
  9. Event probabilities from the regression analysis

    Hi, I am looking for all possible sources (literature, articles, books) with descriptions how to transform different kinds of regression analysis...

    Started by Vlajkony‎, 07-15-2016 04:55 AM
    event probabilities, probabilities, regression analysis, transformations
    • Replies: 5
    • Views: 203
    07-15-2016, 09:55 PM Go to last post
  10. Assumptions of time series regression

    I was wondering what the equivalent assumptions to Gauss Markov are for time series regression. Some are clearly different. Stationarity is not (as...

    Started by noetsi‎, 07-12-2016 12:44 PM
    • Replies: 2
    • Views: 185
    07-12-2016, 05:36 PM Go to last post
  11. Question Interpretation help for my negative binomial regression --> Testing for curviliniarit

    Hello everyone, I am a newby to that forum, so I hope my question is not redundant. I am currently sitting on my master thesis where I...

    Started by Sophie Hoffmann‎, 07-12-2016 09:14 AM
    • Replies: 1
    • Views: 82
    07-12-2016, 10:50 AM Go to last post
  12. How to interpret the standard error of regression coefficients

    Hi folks, This is my first post here - I have read all the rules - please forgive me if I break one! I have run an ANCOVA in SPSS. Obviously, in...

    Started by limeandginger‎, 07-11-2016 09:09 PM
    • Replies: 1
    • Views: 122
    07-12-2016, 09:24 AM Go to last post
  13. Question Power function - finding if the slope is significant or not?

    Hi, I'm using power functions to look at a relationship between time and age and I need to be able to test whether or not the slope of this...

    Started by h_amer‎, 07-11-2016 08:30 AM
    non-linear, p-value, power regression, slope
    • Replies: 1
    • Views: 100
    07-11-2016, 10:26 AM Go to last post
  14. How to study association between categorical variables?

    I have 4 categorical variables in a dataset let X1, X2, X3 and Y. Where X1,X2 and Y is a binary random variable and X3 have 3 categories. X1,X2...

    Started by askazy‎, 07-10-2016 12:33 PM
    • Replies: 6
    • Views: 259
    07-10-2016, 07:00 PM Go to last post
  15. 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...

    Started by askazy‎, 07-10-2016 07:24 AM
    • Replies: 1
    • Views: 121
    07-10-2016, 10:21 AM Go to last post
  16. 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...

    Started by Asma Gm‎, 03-26-2008 05:56 AM
    • Replies: 10
    • Views: 11,978
    07-09-2016, 03:44 AM Go to last post
  17. What's the meaningful difference between an odds ratio and a regression coeffecient?

    Moved from here: http://www.talkstats.com/showthread.php/65740-What-s-the-meaningful-difference-between-an-odds-ratio-and-a-regression-coeffecient ...

    Started by PeterH‎, 07-08-2016 09:49 PM
    • Replies: 0
    • Views: 141
    07-08-2016, 09:49 PM Go to last post
  18. Data set simulation

    Answered on other threads, sorry for posting

    Started by David2‎, 07-07-2016 12:07 PM
    correlation, regression, simulation
    • Replies: 1
    • Views: 171
    07-07-2016, 01:12 PM Go to last post
  19. 95% confidence interval linear regression

    Hi everyone, I have perhaps an easy question but I can't deal with it. I use linear regression on my data with 3 dependent variables:...

    Started by HannaMa‎, 07-07-2016 10:37 AM
    • Replies: 0
    • Views: 91
    07-07-2016, 10:37 AM Go to last post
  20. 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...

    Started by debadog‎, 06-24-2016 09:55 AM
    • Replies: 8
    • Views: 347
    07-07-2016, 09:02 AM Go to last post
  21. Hausman-McFadden Test (IIA)

    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...

    Started by debadog‎, 07-07-2016 07:08 AM
    • Replies: 0
    • Views: 64
    07-07-2016, 07:08 AM Go to last post
  22. 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...

    Started by mmercker‎, 06-26-2016 02:57 PM
    glm assumptions, glm diagnostocs, normality, qq-plot
    • Replies: 8
    • Views: 373
    07-06-2016, 07:59 PM Go to last post
  23. 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...

    Started by Marnie‎, 07-03-2016 09:10 AM
    • Replies: 6
    • Views: 306
    07-04-2016, 10:26 PM Go to last post
  24. 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...

    Started by tomcat.josey‎, 07-03-2016 12:33 PM
    • Replies: 0
    • Views: 178
    07-03-2016, 12:33 PM Go to last post
  25. Post 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...

    Started by endlessend25‎, 06-30-2016 07:03 AM
    binary response models, mle, ols
    • Replies: 8
    • Views: 359
    07-02-2016, 12:47 PM Go to last post
  26. Comparing regression coefficients between groups

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

    Started by Mila‎, 07-01-2016 08:09 AM
    regression coefficients
    • Replies: 5
    • Views: 213
    07-01-2016, 03:10 PM Go to last post
  27. 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...

    Started by noetsi‎, 06-25-2016 03:56 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 417
    06-30-2016, 02:24 PM Go to last post
  28. 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...

    Started by ernesthor‎, 06-29-2016 07:09 AM
    generalized linear model, interaction effect
    • Replies: 1
    • Views: 164
    06-29-2016, 07:54 AM Go to last post
  29. MSE RMSE for Modeling/Technique Examination

    I have heard people talking about creating the best modeling approach, best propensity scores, best approach for dealing with missing data, etc. -...

    Started by hlsmith‎, 01-13-2016 01:08 PM
    • Replies: 10
    • Views: 866
    06-28-2016, 03:14 PM Go to last post
  30. 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...

    Started by carlsonturner‎, 06-28-2016 09:45 AM
    • Replies: 2
    • Views: 171
    06-28-2016, 01:45 PM Go to last post
  31. 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...

    Started by noetsi‎, 06-25-2016 02:45 PM
    • Replies: 9
    • Views: 313
    06-27-2016, 05:48 PM Go to last post
  32. 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...

    Started by valentina89‎, 06-26-2016 11:56 AM
    glm
    • Replies: 3
    • Views: 228
    06-27-2016, 11:11 AM Go to last post
  33. 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...

    Started by noetsi‎, 06-20-2016 05:30 PM
    • Replies: 9
    • Views: 412
    06-27-2016, 11:02 AM Go to last post
  34. 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...

    Started by osamastat‎, 06-26-2016 11:28 PM
    • Replies: 0
    • Views: 162
    06-26-2016, 11:28 PM Go to last post
  35. 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...

    Started by valentina89‎, 06-25-2016 06:40 AM
    logit regression, regresion, test statistic
    • Replies: 5
    • Views: 292
    06-26-2016, 12:08 PM Go to last post
  36. 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...

    Started by valentina89‎, 06-23-2016 04:53 PM
    parameter estimation, regression model
    • Replies: 5
    • Views: 258
    06-26-2016, 04:18 AM Go to last post
  37. 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...

    Started by kiton‎, 06-25-2016 10:27 AM
    count regressors, panel model
    • Replies: 0
    • Views: 112
    06-25-2016, 10:27 AM Go to last post
  38. 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 :

    Started by valentina89‎, 06-24-2016 03:02 AM
    regresion, variance
    • Replies: 0
    • Views: 149
    06-24-2016, 03:02 AM Go to last post
  39. 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...

    Started by fuchs09‎, 06-22-2016 08:13 AM
    • Replies: 0
    • Views: 190
    06-22-2016, 08:13 AM Go to last post
  40. Partial effect and first-difference estimator

    Hello guys, I have a exercise for which I found an answer but i'm not sure of it. I need to estimate the demand for passenger flights in the US...

    Started by endlessend25‎, 06-21-2016 08:40 AM
    • Replies: 0
    • Views: 137
    06-21-2016, 08:40 AM Go to last post
  41. 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...

    Started by Tux‎, 06-14-2016 10:08 PM
    • Replies: 7
    • Views: 1,179
    06-20-2016, 06:48 PM Go to last post
  42. 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...

    Started by teapot‎, 06-16-2016 10:50 PM
    • Replies: 3
    • Views: 491
    06-20-2016, 12:23 PM Go to last post
  43. 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...

    Started by iceman92‎, 06-18-2016 12:13 AM
    • Replies: 2
    • Views: 273
    06-20-2016, 02:41 AM Go to last post
  44. 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...

    Started by datorres85‎, 06-18-2016 09:01 PM
    • Replies: 5
    • Views: 296
    06-19-2016, 06:58 PM Go to last post
  45. 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...

    Started by endlessend25‎, 06-18-2016 07:57 AM
    gls, ols, pooled
    • Replies: 0
    • Views: 222
    06-18-2016, 07:57 AM Go to last post
  46. Interpreting residuals

    Still getting used to interpreting large numbers of data points for regression assumptions. The attached looks fan shaped to me, which it is said...

    Started by noetsi‎, 06-09-2016 01:42 PM
    • Replies: 8
    • Views: 422
    06-17-2016, 09:31 PM Go to last post
  47. 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...

    Started by SpoodleBeast‎, 06-15-2016 03:33 PM
    • Replies: 3
    • Views: 385
    06-17-2016, 12:23 PM Go to last post
  48. 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...

    Started by Jegpeg‎, 02-25-2016 07:21 PM
    confidence interval, regression
    • Replies: 1
    • Views: 109
    06-17-2016, 11:58 AM Go to last post
  49. Regression Analysis from R output

    plz delete this thread.

    Started by absxneverdie‎, 06-17-2016 09:50 AM
    • Replies: 0
    • Views: 144
    06-17-2016, 09:50 AM Go to last post
  50. 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...

    Started by noodlee999‎, 06-16-2016 06:44 AM
    interaction, interpretation, likert, moderation, regression
    • Replies: 1
    • Views: 262
    06-17-2016, 04:42 AM Go to last post
  51. Post 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...

    Started by scooper23‎, 06-15-2016 08:31 PM
    • Replies: 1
    • Views: 192
    06-16-2016, 09:12 PM Go to last post
  52. 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...

    Started by semidevil‎, 06-13-2016 11:00 AM
    • Replies: 5
    • Views: 308
    06-14-2016, 07:18 AM Go to last post
  53. Multiple Regression Analysis - Two independent variables, one w/same values

    Post closed.

    Started by ablong‎, 06-13-2016 12:18 AM
    econometrics
    • Replies: 4
    • Views: 242
    06-13-2016, 09:23 AM Go to last post
  54. 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...

    Started by kiton‎, 06-11-2016 03:16 PM
    • Replies: 1
    • Views: 196
    06-12-2016, 11:56 PM Go to last post
  55. Smile 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...

    Started by beatoctane‎, 06-12-2016 07:22 AM
    • Replies: 1
    • Views: 179
    06-12-2016, 12:15 PM Go to last post
  56. Unhappy Help !! 3 days for my thesis ! Robustness for independent variables?

    Dear Forum, I have a huge problem. I am running a logisitc regression and for some IVs the assumption of linearity was not met. Now I need...

    Started by beatoctane‎, 06-12-2016 07:32 AM
    • Replies: 0
    • Views: 160
    06-12-2016, 07:32 AM Go to last post
  57. Leverage/outliers in large data sets

    Typically discussions of these and their impact on regression deal with individual points. Commonly I have 10-30 thousand data points and its...

    Started by noetsi‎, 06-11-2016 02:35 PM
    • Replies: 0
    • Views: 154
    06-11-2016, 02:35 PM Go to last post
  58. 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...

    Started by vt1‎, 06-11-2016 02:29 AM
    elasticity, multiple regressors, non-linear regression, stata
    • Replies: 1
    • Views: 241
    06-11-2016, 01:44 PM Go to last post
  59. Evaluating regression models help

    I'm new to regression and am needing some assistance in evaluating a model. The relationship I'm trying to obtain is the relationship between credit...

    Started by semidevil‎, 06-10-2016 03:56 PM
    • Replies: 0
    • Views: 180
    06-10-2016, 03:56 PM Go to last post
  60. 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...

    Started by Tux‎, 06-09-2016 04:56 PM
    • Replies: 0
    • Views: 147
    06-09-2016, 04:56 PM Go to last post

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