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Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

  1. Moved: Long format for OLS?

    Started by hellonew‎, 05-23-2012 12:43 PM
    • Replies: -
    • Views: -
    05-23-2012, 12:50 PM Go to last post
  2. Moved: I urgently need help with this specific regression model

    Started by A_Mans02‎, 04-25-2014 10:33 AM
    • Replies: -
    • Views: -
    04-25-2014, 11:38 AM Go to last post
  3. Moved: single observation multi-year variables

    Started by tomatowill03‎, 02-13-2011 10:10 AM
    • Replies: -
    • Views: -
    02-13-2011, 10:10 AM Go to last post
  4. Moved: How to Interpret the Factor Analysis Findings

    Kindly help writing research findings for the Factor Analysis as attached

    Started by Zainab‎, 07-24-2016 06:17 PM
    • Replies: -
    • Views: -
    07-24-2016, 12:37 PM Go to last post
  5. Hierarchical Linear Modeling (HLM) Explanation

    I sought help actually doing an HLM a few weeks ago and found the assistance very helpful. Now, I'm curious about more of the actual meaning of...

    Started by Weibull‎, 10-09-2017 07:32 AM
    • Replies: 1
    • Views: 83
    10-09-2017, 09:07 AM Go to last post
  6. Simple Regression

    The manager of Colonial Furniture has been reviewing weekly advertising expenditures. During the past 6 months, all advertisements for the store...

    Started by vernonicamexie‎, 10-10-2017 01:32 PM
    • Replies: 0
    • Views: 96
    10-10-2017, 01:32 PM Go to last post
  7. Post two sided multivariate

    Hi, I have a question, what will I do with this? In univariate analysis, if the population standard deviation σ is known, the appropriate...

    Started by Sonyver‎, 09-19-2017 03:25 AM
    • Replies: 0
    • Views: 111
    09-19-2017, 03:25 AM Go to last post
  8. Residual Modelling and Generating Scenarios for variables

    newbie here with a trivial question. i am trying to create scenarios on a set of macro variables. i started with creating a bayesian VAR model on...

    Started by eemrun‎, 09-20-2017 09:33 PM
    forecast, forecast error, var
    • Replies: 0
    • Views: 121
    09-20-2017, 09:33 PM Go to last post
  9. Fixed effects / clustered standard error in multi-level data

    Hi everyone :) I'm analyzing the effect of political corruption on the bid-ask spread of US political entities, namely my data set consists of...

    Started by Physiokrat‎, 09-25-2017 08:22 AM
    • Replies: 0
    • Views: 122
    09-25-2017, 08:22 AM Go to last post
  10. How to report Multiple Regression Results

    Dear Forum, for my thesis I want to investigate the relationship between certain health behaviors (e.g. eating behavior) and participants...

    Started by lisannceline‎, 08-07-2017 09:22 AM
    • Replies: 0
    • Views: 128
    08-07-2017, 09:22 AM Go to last post
  11. Spend against views/day. Include days of no spend?

    Hi everyone, just looking at doing some simple linear regression and I've got views on an article. Occasionally we choose to spend a bit of money...

    Started by Edorian‎, 09-20-2017 11:41 PM
    • Replies: 0
    • Views: 137
    09-20-2017, 11:41 PM Go to last post
  12. Estimating impact of Predictor

    Hi, I have a simple regression with 24-36 months of data, let's say of Sales which is the dependant variable and % spend on promotions in that...

    Started by confusedguy15‎, 09-22-2017 07:50 AM
    • Replies: 3
    • Views: 137
    09-22-2017, 08:59 AM Go to last post
  13. Repeated Measures - moderation / two outcomes issue

    Hey folks! By what procedure can I test whether the association between two dependent variables D1 and D2 changes as a function of within-subject...

    Started by Martin Marko‎, 09-13-2017 12:03 PM
    • Replies: 0
    • Views: 149
    09-13-2017, 12:03 PM Go to last post
  14. linear regression - coefficients too high (data in % as an alternative?)

    Hi everyone, I am new to statistics and I have to run 3 separate simple linear regressions (I averaged the data from 2003-2015 in order to run a...

    Started by Francesca-M‎, 09-05-2017 03:13 AM
    • Replies: 0
    • Views: 160
    09-05-2017, 03:13 AM Go to last post
  15. Multiple linear regression in cross-country analysis with small sample size

    Hello, While conducting small studentís research project Iíve faced a little problem. Iím using aggregated country data (not in individual, but...

    Started by AloisDusek‎, 10-01-2017 07:10 AM
    • Replies: 0
    • Views: 174
    10-01-2017, 07:10 AM Go to last post
  16. Logit Transformation: Interpreting the Coefficients

    Hi all, I'm currently doing an empirical project in econometrics. I examine the effect of globalisation and some other control variables on...

    Started by Markst‎, 09-24-2017 08:57 AM
    • Replies: 2
    • Views: 177
    09-26-2017, 08:55 AM Go to last post
  17. Stationarity and White noise

    Hi all, I'm just beginning to learn about time series analysis for my final year project at uni and I am confused about stationarity. A time series...

    Started by zeke512‎, 10-02-2017 10:57 AM
    • Replies: 4
    • Views: 205
    10-03-2017, 04:53 AM Go to last post
  18. Determine Confounding using Multivariate analysis

    After we adjusted for confounders in the Multivariate analysis, How do we determine that if the variable is confounding or not? I read somewhere...

    Started by sandyzman‎, 08-11-2017 01:49 PM
    • Replies: 1
    • Views: 206
    08-11-2017, 02:04 PM Go to last post
  19. Power analysis for time series regression

    Hello, I'm trying to determine the sample size I need for a study. In the analysis, I will be including three predictors (score on a questionnaire,...

    Started by psychstudent0798‎, 09-07-2017 08:00 PM
    power analysis, regression, time series regression
    • Replies: 1
    • Views: 207
    09-08-2017, 04:50 AM Go to last post
  20. matrix iv and dv

    hi all The independent variable i got is a 52x16 matrix The dependent variable i got is also a 52x16 martix (This is one variable) what kind...

    Started by jackfrom14‎, 08-01-2017 03:22 AM
    • Replies: 0
    • Views: 222
    08-01-2017, 03:22 AM Go to last post
  21. Looking for references on Passing-Bablok curve fitting.

    Hi, I am computer programmer and I need to implement the Passing-Bablok method in one application I have. Yet, I am a little stuck since I don't...

    Started by gmmo‎, 07-28-2017 06:33 PM
    passing-bablok method
    • Replies: 0
    • Views: 223
    07-28-2017, 06:33 PM Go to last post
  22. Hierarchical Linear Modeling (HLM) Assistance

    Sorry if this gets posted twice (it doesn't look like it has posted the first time as of now). I asked a question about fixed vs. random effects...

    Started by Weibull‎, 09-27-2017 10:26 AM
    • Replies: 4
    • Views: 233
    09-28-2017, 04:40 AM Go to last post
  23. high correlation among interaction terms

    Y= alpha+ b1*x1 + b2*x2 + b3* x3 +b4*x4 + b5*dummy1*x1+b6*dummy1*x2 + b7*dummy1*x3 +b8*dummy1*x4 I run the correlation between all the regression...

    Started by 12345678‎, 08-10-2017 06:11 AM
    interaction, multicolinearity
    • Replies: 0
    • Views: 239
    08-10-2017, 06:11 AM Go to last post
  24. Odds ratios for multilevel categorical variable

    Hi, I have a categorical variable with three levels that represent disease severity (0=no disesase, 1=mild, 2=severe disease) and I have put it...

    Started by Markica85‎, 08-04-2017 10:52 AM
    • Replies: 3
    • Views: 252
    08-04-2017, 01:31 PM Go to last post
  25. Question on Impact of Independent Variable Interpretation

    Hi, Suppose i have a normal linear regression construct, like Sales = Intercept + M1*X1 + M2*X2 + M3*X3 Suppose X1,X2,X3 are the...

    Started by kaos1511‎, 09-01-2017 01:24 PM
    regression, regression analysis, regression coefficent
    • Replies: 3
    • Views: 254
    09-01-2017, 03:30 PM Go to last post
  26. Correlation among a paired multiple vairable for a special case

    Hi all, I've run into a stats problem that I can't figure out. I have a pair of linked variables (x,y) that I want to correlate with a third...

    Started by willct‎, 08-06-2017 07:22 AM
    • Replies: 1
    • Views: 255
    08-07-2017, 06:41 PM Go to last post
  27. IV regression help

    Hello everyone, Im confused about endogeneity and how to approach this problem in a case of one equation and multiple equations that are jointly...

    Started by Regressionhelp‎, 10-06-2017 02:26 AM
    iv; iv regression
    • Replies: 3
    • Views: 255
    10-11-2017, 11:39 AM Go to last post
  28. Calibration set for PLS regression

    Hello everyone, New to this forum and kind of wondering why I hadn't thought to search for one before tonight... I hope a light at the end of the...

    Started by lonobean‎, 07-20-2017 06:40 AM
    calibration, pls, sample, spectroscopy, training
    • Replies: 0
    • Views: 259
    07-20-2017, 06:40 AM Go to last post
  29. Easy Bayesian Statistics

    Well the thread title was to get your attention. About a month ago I attended a workshop on Bayesian statistics. It introduced the basic principles...

    Started by hlsmith‎, 07-29-2017 11:41 AM
    • Replies: 1
    • Views: 278
    07-31-2017, 08:49 AM Go to last post
  30. How do I run a moderator analysis within zero-inflated negative binomial(ZINB) reg?

    How do I run a moderator analysis within zero-inflated negative binomial(ZINB) regression? I do have independent variables (Social Network...

    Started by SEWON‎, 07-01-2017 11:22 PM
    moderated regression, zero-inflation
    • Replies: 0
    • Views: 285
    07-01-2017, 11:22 PM Go to last post
  31. [Linear Regression] Regression with aggregated or separated years?

    Hello to everyone! :wave: I should do some regressions but i've an important and simple question... my dataset have this structure: ...

    Started by andre94‎, 08-25-2017 09:32 AM
    aggregation, linear regression, regression analysis
    • Replies: 4
    • Views: 304
    08-25-2017, 12:00 PM Go to last post
  32. Regression or regression alternatives for data missing not at random

    I am analyzing the results of a satisfaction survey. The research question or goal is to determine whether or not (dis-)satisfaction with...

    Started by appendix‎, 07-29-2017 09:08 PM
    • Replies: 4
    • Views: 305
    07-31-2017, 02:43 PM Go to last post
  33. Interaction effects regression wiith dummy variables

    Hello everyone, I am doing an analysis about the export diversification effect during the financial crisis. I have my dependent variable as log...

    Started by doug_aguilar‎, 08-24-2017 07:34 AM
    dummy variables, estimating equations, multicollinearity, regression analysis
    • Replies: 5
    • Views: 320
    08-25-2017, 09:19 AM Go to last post
  34. Compare regression coefficients of two settings with similar samples

    Dear Statisticians, For my thesis I am currently examining whether the accounting principles have an influence on the relation between having a...

    Started by Daniel_W‎, 06-09-2017 03:32 AM
    • Replies: 0
    • Views: 330
    06-09-2017, 03:32 AM Go to last post
  35. Firth regression and AIC-based model selection

    Dear all, when using Firth's bias reduction method (Firth 1993) to fit logistic regressions, is it possible (sensible) to compare models using AIC? ...

    Started by Luke‎, 09-01-2017 08:04 AM
    aic, firth regression
    • Replies: 4
    • Views: 341
    09-01-2017, 03:41 PM Go to last post
  36. help with mediation analysis

    hey- i just conducted a study with 2 IVs and 1 DV, i found statistically signification relationships between IV1 and the DV and IV2 and the DV. I...

    Started by donthatekate‎, 07-16-2017 06:37 PM
    • Replies: 0
    • Views: 342
    07-16-2017, 06:37 PM Go to last post
  37. Negative Binomial Regression and Type I Errors

    Hi, I've completed three test of negative binomial regression. One test had 14 independent variables, and the other two had 7 independent...

    Started by Username123‎, 07-20-2017 07:34 AM
    • Replies: 2
    • Views: 347
    07-21-2017, 03:05 AM Go to last post
  38. Fixed vs. Random Effects

    I'm wondering if someone could help me to correctly identify whether certain variables should be considered fixed or random effects. Just as...

    Started by Weibull‎, 08-28-2017 09:38 AM
    difference, effects, fixed, random
    • Replies: 6
    • Views: 354
    08-29-2017, 04:43 AM Go to last post
  39. Coefficient sign varys over the distribution of the dependent variable

    Hi, Lets say I am estimating a linear regression with Y as a continuous DV and X as a binary IV. Based on theoretical reasons I am assuming that...

    Started by xs0982‎, 07-21-2017 08:53 AM
    • Replies: 1
    • Views: 364
    07-21-2017, 11:16 AM Go to last post
  40. Using a dummy variable to model threshold effects

    Hi All, I'm new to this thread and very green/inexperienced in using regressions. I'm trying to model threshold effects in a time series analysis -...

    Started by JoeJackson12‎, 06-26-2017 08:28 AM
    dummy variable, threshold, time series
    • Replies: 0
    • Views: 370
    06-26-2017, 08:28 AM Go to last post
  41. Comparing effect sizes of two longitudinal linear relationships

    Is there a way to determine if one longitudinal linear relationship is significantly stronger than another? I was planning on using regression...

    Started by dbt_healthpsych‎, 06-08-2017 12:51 PM
    effect sizes, longitudinal data, moderated multiple regres
    • Replies: 2
    • Views: 373
    06-08-2017, 10:16 PM Go to last post
  42. Question HLM - non-linear IV and placement of individual characteristics in the model

    Hi all! I am working on my dissertation and run across a couple of questions when structuring HLM model. The data looks as follows: I conducted an...

    Started by doroshishka‎, 06-22-2017 05:04 PM
    categorical variables, hlm, variable in model
    • Replies: 0
    • Views: 376
    06-22-2017, 05:04 PM Go to last post
  43. External validation of a log reg model using Nagelkerkes R2 w/ fixed parameters

    I have a dataset containing a point score (an integer between 0-41) and mortality (0/1) for a sample. I have performed a logistic regression...

    Started by ag90‎, 03-30-2017 08:05 AM
    external validation, logistic regression, nagelkerke, rsquared
    • Replies: 0
    • Views: 382
    03-30-2017, 08:05 AM Go to last post
  44. Reporting Dummy Variables and Determining Significance

    Hi all, I was just wondering, how does a person determine the significance of a categorical variable in a hierarchical regression model if one...

    Started by Aegislash‎, 06-27-2017 12:11 PM
    control, dummy variables, hierarchical regression, significance, step 2
    • Replies: 1
    • Views: 394
    06-27-2017, 12:46 PM Go to last post
  45. combining error terms for two dissimilar regressions

    I have a linear regression for Y on X, and a power regression for Z on Y, each having associated error. (the Y values are different (independent) in...

    Started by George Kraemer‎, 09-21-2017 11:32 AM
    • Replies: 13
    • Views: 425
    09-25-2017, 02:36 PM Go to last post
  46. Modeling portfolio using multiple regressions

    Hi All, I'm wondering about the viability of this task. I'm looking to form something similar to an investment portfolio, which aggregates...

    Started by JoeJackson12‎, 07-17-2017 07:05 AM
    multiple regression, portfolio, regression analysis, securities
    • Replies: 2
    • Views: 429
    07-21-2017, 07:21 AM Go to last post
  47. Binary LR-Forward Stepwise: Should I report the each step entered in the result?

    Dear all, I used binary logistic regression in a forward stepwise method to classify my two groups of participants (depressed vs. healthy) using...

    Started by Ping Koo‎, 04-19-2017 07:51 AM
    • Replies: 0
    • Views: 441
    04-19-2017, 07:51 AM Go to last post
  48. OLS vs solving a system of linear equaions

    If i want to solve y=Xb, where y is a vector of observations and X a matrix of independent variables i could use ordinary least squares to estimate...

    Started by Prometheus‎, 09-14-2017 07:49 AM
    • Replies: 11
    • Views: 452
    09-20-2017, 08:06 AM Go to last post
  49. Logistic Regression - predicted probabilities opposite to actual percentages

    Hi! I've asked this question elsewhere but haven't yet got a response that makes much sense to me... I have conducted a logistic regression in...

    Started by DrJay‎, 07-13-2017 08:52 AM
    • Replies: 6
    • Views: 458
    07-17-2017, 03:40 AM Go to last post
  50. Question Analysis of multiple dependent variables of different sample sizes

    Thanks in advance for your help, I'm not a statistician, so I'm struggling to understand the best way to analyse some biological data, and I...

    Started by StatLess‎, 04-19-2017 09:32 AM
    • Replies: 0
    • Views: 460
    04-19-2017, 09:32 AM Go to last post
  51. How to handle dummy variable with fraction as possible values

    Hello , I am working on a data with a dummy variable values not just 0 or 1. It has fractions as values which denote the number of month within a...

    Started by samisan‎, 08-12-2017 04:42 PM
    • Replies: 5
    • Views: 478
    08-13-2017, 05:27 AM Go to last post
  52. Regression against the mean

    Hi, the data behaves in a certain way. It has the tendency to regress to the mean as well as is correlated to another factor Y. Is it correct to do a...

    Started by lawlsh‎, 07-06-2017 08:51 PM
    • Replies: 1
    • Views: 482
    07-07-2017, 01:42 AM Go to last post
  53. How to do a linear multiple regression with multiple correlating independent vars?

    Right I am a total newb at stats but I'll try an explain what I'm trying to do. Im trying to find whether China's Foreign Direct Investment...

    Started by zakqux93‎, 04-26-2017 06:10 AM
    • Replies: 0
    • Views: 492
    04-26-2017, 06:10 AM Go to last post
  54. A question regarding simultaneous relationship and its implications on predictions

    Hey guys, I have a question regarding The simultaneous relationships and the Implications it has on regarding whether the said variable will be...

    Started by orenz10‎, 04-14-2017 08:22 AM
    • Replies: 0
    • Views: 496
    04-14-2017, 08:22 AM Go to last post
  55. Smile Panel study, multiple linear regression, assumptions

    Hey. I am doing a project where I am studying a set of companies over a 7-year period. I am doing a multiple linear regression analysis either...

    Started by monsmatglad‎, 03-21-2017 05:54 AM
    assumptions/requirements, linear, multiple regression, panel study
    • Replies: 0
    • Views: 498
    03-21-2017, 05:54 AM Go to last post
  56. Logistic regression with repeted measures

    Hi, I'm new in logistic analysis. I have binary outcome (energy...) day 1,2 and 3 (yes/no) for each patient (id). I would like to test whether...

    Started by Aleco‎, 05-25-2016 11:32 AM
    • Replies: 0
    • Views: 507
    05-25-2016, 11:32 AM Go to last post
  57. Panel data regression estimatetion method

    Hi, I am facing some problems with a panel dataset, and I hope somebody could help me. I have a pretty large data set (approx. 5000 firms, 15...

    Started by RickL‎, 04-09-2017 05:53 AM
    fixed effects, panel data, panel regression, pooled ols, random effets
    • Replies: 0
    • Views: 520
    04-09-2017, 05:53 AM Go to last post
  58. Interaction / Moderation effect linear regression

    Hi, I have a question regarding a moderation effect with linear regression. I have hypothesized for a significant main effect and another...

    Started by diederikvanduuren‎, 08-01-2017 03:34 PM
    • Replies: 6
    • Views: 524
    08-12-2017, 11:34 AM Go to last post
  59. Cant do a linear regression on a subset of my data: Error

    I installed the R package AER, from which you get the data `PSID1982`. Then I define this model: data("PSID1982") set.seed(15606) ...

    Started by Latriuz‎, 01-17-2016 11:53 AM
    • Replies: 0
    • Views: 526
    01-17-2016, 11:53 AM Go to last post
  60. Fixed effects model urgent help

    So I have a dataset which I am trying to use the fixed effects model on. I am confused if I am doing it correctly. I am using panel data to...

    Started by jdev10‎, 04-18-2017 11:02 PM
    • Replies: 0
    • Views: 526
    04-18-2017, 11:02 PM Go to last post

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