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Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

  1. Correlation with residuals of regression

    Hi all, Let's say I have one DV (X) and 5 IV's, A, B, C, D and E. I'm specifically interested in the effect of E. I could perform a regression...

    Started by AnLo‎, 11-04-2016 08:07 AM
    • Replies: 3
    • Views: 1,165
    11-07-2016, 10:18 AM Go to last post
  2. Red face Test for comparing correlation values. The winner is?

    Hi everyone, my problem is relatively simple, but trivial. I've already read some topics about that, but I really need straightforward answers...

    Started by smndpln‎, 11-05-2016 04:36 AM
    compare coefficients, correlations, neurosciences, regression analysis
    • Replies: 2
    • Views: 1,029
    11-05-2016, 06:10 AM Go to last post
  3. Urgent: SPSS multiple regression moderator analysis

    Hello everybody, I am glad I found my way to this forum! There seem to be a lot of SPSS pros here! :) I hope I can learn a bit! I am currently...

    Started by PhilST‎, 11-02-2016 12:04 PM
    • Replies: 3
    • Views: 1,705
    11-03-2016, 03:32 AM Go to last post
  4. Calculating predicted probabilities from a logistic regression model SPSS

    Hello everyone, I am trying to calculate individual predicted probabilities from a logistic regression model with SPSS (to describe how a individual...

    Started by kranas‎, 10-30-2016 12:08 PM
    logistic regression, probabilities
    • Replies: 6
    • Views: 2,668
    11-01-2016, 03:52 PM Go to last post
  5. Calculation of parameter uncertainties when using method of least squares

    Hi everyone, I am struggling with a maybe simple problem. I have a set of data points (x,y) for which I would like to derive a fitting function of...

    Started by bordercollie2‎, 07-29-2016 04:59 AM
    • Replies: 1
    • Views: 1,261
    11-01-2016, 04:41 AM Go to last post
  6. Multinomial regression: how to interpret results

    Hello Everyone, I'm currently writing my master's dissertation and i'm having two main issues. 1) The first one is related to the attached...

    Started by GiuliaCarbone‎, 10-30-2016 03:41 PM
    • Replies: 4
    • Views: 1,166
    10-31-2016, 01:57 PM Go to last post
  7. Help with my hierarchal regression

    Hi Guys I'm accomplishing a hierarchal regression for my thesis and I'm a bit stumped. My hierarchal regression is trying to assess the link...

    Started by lewiss009‎, 10-22-2016 09:05 AM
    • Replies: 3
    • Views: 1,210
    10-30-2016, 01:51 AM Go to last post
  8. bootstrap regression question

    I have a slightly different twist on the normal application of bootstrapping and regression. Here’s the problem… I have a population of people...

    Started by signalMTB‎, 10-19-2016 08:48 PM
    • Replies: 1
    • Views: 1,366
    10-28-2016, 08:09 AM Go to last post
  9. Relative Weights Analysis | Any good step-by-step guides out there?

    I am trying to conduct relative weights analysis on employee engagement data to prioritize where our org focuses its efforts. I'm running SPSS...

    Started by statsean‎, 10-25-2016 02:03 PM
    relative weights analysis
    • Replies: 0
    • Views: 721
    10-25-2016, 02:03 PM Go to last post
  10. Adding a control increases the impact of focal predictor -- sign of what?

    Hello dear forum members! I have recently been working on a mediation analysis, in which inclusion of an additional variable (say, C1) implies...

    Started by kiton‎, 10-24-2016 10:48 PM
    • Replies: 3
    • Views: 1,173
    10-25-2016, 10:17 AM Go to last post
  11. How to use Akaike's Information Criterion (AIC) for manual model reduction?

    Hi all, I wondered if anybody can explain to me how I can use the AIC for manual reduction of my GLM. I calculate a GLM with the following...

    Started by Fred.‎, 10-24-2016 06:52 AM
    • Replies: 1
    • Views: 1,400
    10-24-2016, 10:58 PM Go to last post
  12. Cross-sectional dependence, heteroskedasticity and serial correlation

    *** solved

    Started by Wooly‎, 10-24-2016 02:51 PM
    cross-sectional, econometrics
    • Replies: 0
    • Views: 560
    10-24-2016, 02:51 PM Go to last post
  13. Basic Estimation; Should I use future data?

    Hi everyone, I'm new on the forum but had a question to ask that's related to the work I currently do. I'm wondering if we should include...

    Started by Edorian‎, 10-04-2016 06:54 PM
    • Replies: 4
    • Views: 855
    10-23-2016, 10:24 PM Go to last post
  14. Comparison of one outcome to all the other outcomes

    Here is some data to play with set.seed(1e4) color = factor(c(rep("blue",20), rep("red",20), rep("yellow",150)),...

    Started by Remi‎, 10-23-2016 06:58 PM
    categorical vairable, hypothesis testing, logistic regression, mcmcglmm
    • Replies: 0
    • Views: 516
    10-23-2016, 06:58 PM Go to last post
  15. What p value to use for purposeful selection of variables for multivariate

    To do purposeful selection of variables for multivariate, can I use a p value of 0.15 cut off to select those significant variables from univariate ...

    Started by jm_manipadam‎, 10-23-2016 12:27 PM
    • Replies: 1
    • Views: 1,058
    10-23-2016, 01:28 PM Go to last post
  16. Is univariate analysis a must before binary logistic regression

    Could I enter all my independent variables directly for a binary logistic regression OR is it necessary that I should run a one way anova for...

    Started by jm_manipadam‎, 10-21-2016 07:19 PM
    • Replies: 8
    • Views: 914
    10-22-2016, 09:27 AM Go to last post
  17. How to handle non normally distributed residuals

    Currently we are working with a GEE model, at this point we are having doubts about our residuals which are not normally distributed. Log...

    Started by Cintia‎, 10-21-2016 09:58 AM
    • Replies: 0
    • Views: 1,144
    10-21-2016, 09:58 AM Go to last post
  18. Post Help with regression and related nominal values

    Hey all. I'd like some input on a regression analysis. I have data that measures the reactions of individuals to a number of objects and to a number...

    Started by infiniteline‎, 10-15-2016 12:35 PM
    multivariate, nominal variable, regression analysis
    • Replies: 5
    • Views: 692
    10-20-2016, 10:25 AM Go to last post
  19. GLM on non-linear/curvilinear data

    Dear all! I’m sure somebody of you will help me with my non-linear data-problem. I measured a fitness correlate of an animal (response variable)...

    Started by Fred.‎, 09-30-2016 08:54 AM
    anova
    • Replies: 6
    • Views: 1,041
    10-19-2016, 07:54 AM Go to last post
  20. Defining relation of a fold over design

    Dear All, I am reading the book DC Montgomery on my own. The book says that the defining relation for a foldover design will have L + U - 1 words...

    Started by ashimkapoor‎, 10-18-2016 01:50 PM
    doe
    • Replies: 0
    • Views: 591
    10-18-2016, 01:50 PM Go to last post
  21. Heteroscedastcty with large number of cases

    I ignore here that I have populations commonly :p I have heard that heteroscedastcity is not an issue when you have large sample sizes (I have ten...

    Started by noetsi‎, 10-14-2016 10:45 AM
    • Replies: 10
    • Views: 1,475
    10-17-2016, 01:21 PM Go to last post
  22. Multiple Regression study

    delete this

    Started by Giaco‎, 10-17-2016 02:52 AM
    • Replies: 0
    • Views: 560
    10-17-2016, 02:52 AM Go to last post
  23. Multicollinearity problem in binary logistic regression

    I'd like to ask for some help with a binary logistic regression. In SPSS I am trying to build a binary logistic regression with 4 independent...

    Started by kranas‎, 10-15-2016 05:20 AM
    logistic regression, multicollinearity
    • Replies: 2
    • Views: 867
    10-16-2016, 01:52 AM Go to last post
  24. Please Help Weird Question

    I have a very weird question which I guess is not replicated hopefully I can get an answer. when using the multiple regression analysis in excel via...

    Started by naderkamal188‎, 10-15-2016 06:35 PM
    • Replies: 1
    • Views: 519
    10-15-2016, 09:42 PM Go to last post
  25. Type 1 error in regression with entire populations

    I have read that you are not supposed to keep choosing different levels of the categorical variable to be the reference level, because this can cause...

    Started by noetsi‎, 10-13-2016 11:55 AM
    • Replies: 14
    • Views: 1,971
    10-15-2016, 10:50 AM Go to last post
  26. Many predictors relative to cases, want to identify interesting ones

    I've been helping a colleague with his research project. He is looking at the trustworthiness of profile texts. He is analyzing text entries using...

    Started by Junes‎, 10-13-2016 06:49 PM
    exploratory, lasso, linear regression, predictors, stepwise regression
    • Replies: 2
    • Views: 602
    10-14-2016, 02:31 PM Go to last post
  27. Interaction Terms in Linear regression

    In R I used the linear regression call for three variables: y, x, and c Y and X are numeric where C is a dichotomous {0,1}. X and C are the...

    Started by Z-Statistic‎, 10-12-2016 05:49 PM
    • Replies: 1
    • Views: 635
    10-12-2016, 08:48 PM Go to last post
  28. Linear Regression coeffiecients used in Exponential Regression

    I have a decay curve (y) with values 1, 0.75,0.64,0.54,0.46. The x values are 1,2,3,4,5. First a simple linear regression was performed (y =mx + b)....

    Started by Haripi314‎, 10-12-2016 11:36 AM
    exponential regression, linear regression
    • Replies: 0
    • Views: 627
    10-12-2016, 11:36 AM Go to last post
  29. Controlling for a variable in multiple regression creates significance of another var

    I have continuous variables A, B and C. A/B correlates with C significantly. Neither A, B or A*B correlates significantly with C. In multiple...

    Started by trexter‎, 10-12-2016 03:56 AM
    • Replies: 1
    • Views: 497
    10-12-2016, 08:12 AM Go to last post
  30. Static & Dynamic variables in one model

    Hello! My name is Valentina and I am a Master student, currently working on my MSc thesis. I am examining the effect of Politicians on the board...

    Started by monicanic‎, 10-12-2016 03:03 AM
    • Replies: 0
    • Views: 573
    10-12-2016, 03:03 AM Go to last post
  31. Multivariate ''binary'' logistic regression...???

    Hello all, My name is Nick. I am a doctor and i would appreciate any of your help in the above problem. Recently, on purpose to delineate/propose a...

    Started by nok‎, 10-11-2016 12:33 PM
    • Replies: 3
    • Views: 918
    10-11-2016, 01:55 PM Go to last post
  32. Regression Lines

    Can someone please explain this to me In a random sample of 40 students, the mean number of hours spent studying is 7.5 with a standard deviation...

    Started by Ahmed.abdullah‎, 10-11-2016 11:36 AM
    • Replies: 1
    • Views: 536
    10-11-2016, 11:48 AM Go to last post
  33. Country Variable

    Hi Stata Experts, I have a question concerning an idea for my thesis. I have firm-specific data (assets, sales, income etc.) for different firms...

    Started by corazon92‎, 10-11-2016 08:27 AM
    • Replies: 0
    • Views: 566
    10-11-2016, 08:27 AM Go to last post
  34. Regression after multiple imputation

    Hello every one. I want to perform simple binary logistic regression after multiple imputation but I constantly get this message and the execution of...

    Started by johnstatistic‎, 10-05-2016 09:32 PM
    multiple imputations, regression analysis
    • Replies: 5
    • Views: 868
    10-10-2016, 07:45 PM Go to last post
  35. Cool Approximating the probability of an event occuring from the output of a Poisson GLM

    Hi all, I have some data that includes the output of a Poisson Log Link model, that aims to predict how many times an event will occur over the...

    Started by skinicod‎, 10-08-2016 09:47 AM
    glm, log link, poisson
    • Replies: 2
    • Views: 890
    10-10-2016, 11:15 AM Go to last post
  36. Spearman's Correlation and Wilcoxon Signed Rank Test

    Hey guys! I have an urgent question for my master thesis. In my thesis, I'm comparing 4 performance metrics. My data consists of 100 funds and...

    Started by leomessi178‎, 10-10-2016 11:13 AM
    • Replies: 0
    • Views: 970
    10-10-2016, 11:13 AM Go to last post
  37. Regression with additive and multiplicative predictors

    Hi, we are analyzing pollutants in mussels with regression models. Let's say we have only the two predictors (1) "year" and (2) "month". However,...

    Started by mmercker‎, 10-08-2016 12:44 PM
    additivem, regression
    • Replies: 8
    • Views: 1,038
    10-10-2016, 07:50 AM Go to last post
  38. OLS Regression w/ longitudinal data

    I have a longitudinal data set with two waves. Several variables exist in both waves. I want to examine the following question with and OLS...

    Started by ReneRopac‎, 10-07-2016 03:33 PM
    • Replies: 0
    • Views: 782
    10-07-2016, 03:33 PM Go to last post
  39. Postive correlation but negative coefficient in regression??

    Im a little confused by some results I have..... I have two predictor variables and an outcome variable. The first predictor is positively...

    Started by statto‎, 08-20-2011 09:39 AM
    2 Pages
    1 2
    rho/beta conflict, suppression
    • Replies: 23
    • Views: 47,572
    10-07-2016, 04:31 AM Go to last post
  40. Exclamation Stationary data first after the 2-order/3-order difference on LN(variable)

    I want to make an Linear Regression. Dependent variable: GDP Independent variables: Net exports and Debt and some control variables All variables...

    Started by APA‎, 10-06-2016 08:33 AM
    differencing, linear regression, non-stationarity, ols, stationarity
    • Replies: 0
    • Views: 1,725
    10-06-2016, 08:33 AM Go to last post
  41. What information can we get from the table of deviance residual (regression)?

    Hello, I was wondering what's the importance and substantive interpretation of the table of deviance residual in the context of (logistic)...

    Started by gianmarco‎, 10-05-2016 09:01 AM
    • Replies: 0
    • Views: 516
    10-05-2016, 09:01 AM Go to last post
  42. help me wid this question

    hi everyone i want the solution of this question before sunday i will post the regression table here just help me in answering the questions

    Started by softy‎, 10-01-2016 12:31 AM
    • Replies: 3
    • Views: 1,983
    10-04-2016, 11:29 PM Go to last post
  43. Question Large odds ratio in binary logistic regression/big scale difference of variables

    I'd like to ask for some help with a binary logistic regression. In SPSS I am building a binary logistic regression with 4 independent continuous...

    Started by kranas‎, 10-01-2016 11:29 AM
    logistic regression, odds ratio
    • Replies: 3
    • Views: 675
    10-02-2016, 05:53 AM Go to last post
  44. calculation of the average leverage when predictor(s) is categorical

    Hello, I was reading different resources about regression diagnostic, in particular for Logistic Regression. As for leverage, the sources suggest...

    Started by gianmarco‎, 09-30-2016 02:57 AM
    • Replies: 3
    • Views: 668
    09-30-2016, 02:41 PM Go to last post
  45. Poisson regression for Count data

    Hello Every one, I'am working in Toxicological lab, Where we deal with animal data. I have to perform Poisson Regression for count data but i...

    Started by umang49‎, 09-27-2016 11:59 AM
    • Replies: 9
    • Views: 1,770
    09-28-2016, 06:38 PM Go to last post
  46. Correlation VS linear regression using proportional data

    Hi, I was hoping someone may be able to assist. I have discussed this with two people who understand a great deal about stats, although I read...

    Started by jonpaul31‎, 09-28-2016 11:52 AM
    • Replies: 0
    • Views: 1,987
    09-28-2016, 11:52 AM Go to last post
  47. Dealing with missing values

    I am analyzing the data of a cohort study.There are three sets of paired data (same measures on same subjects in 3 different point of time). The...

    Started by johnstatistic‎, 09-23-2016 08:54 AM
    missing values, regression model
    • Replies: 2
    • Views: 783
    09-27-2016, 06:54 AM Go to last post
  48. Not significant coefficients in Logit, but in Probit they are

    Hello, I would like to ask you for a help. I have a simple model with one explanatory variable and with a binary dependend variable. Explanatory...

    Started by tradermartin‎, 09-24-2016 02:48 AM
    • Replies: 5
    • Views: 1,154
    09-26-2016, 05:40 PM Go to last post
  49. Generalized Least Squares (and ANOVA type III)

    Dear all, I ran a type III ANOVA on a model of this kind: gls(y~x1+x2+x3). I found that both x2 and x3 are significant. However, if I drop x3 from...

    Started by sff.cardoso‎, 09-21-2016 02:07 PM
    anova, gls, regression analysis
    • Replies: 5
    • Views: 616
    09-22-2016, 01:07 PM Go to last post
  50. Eviews 9 Tutorial Fixed Effects And Random Effects Two Stage Least Squares

    https://www.youtube.com/watch?v=M8OuLQYHDrM Fixed Effects And Random Effects Two Stage Least Squares (2SLS) regression analysis is a statistical...

    Started by OlhDt_semarang‎, 09-18-2016 11:44 PM
    • Replies: 0
    • Views: 1,016
    09-18-2016, 11:44 PM Go to last post
  51. Time series or not?

    I am working with three series of 33 yearly observations each. My goal is to understand causality and the long run relationships between them; one of...

    Started by verylost‎, 09-17-2016 06:50 AM
    • Replies: 3
    • Views: 1,958
    09-17-2016, 12:10 PM Go to last post
  52. Exclamation Multivariate models - standard error help

    I have 2 multivariate models created in R concerning nutrition Model 1 = -11.5±1.68 + 0.56±0.562 Intake + 16.6±0.165 Potassium concentration ...

    Started by Ireeland‎, 09-16-2016 06:14 AM
    model, multivariate, standard error
    • Replies: 0
    • Views: 611
    09-16-2016, 06:14 AM Go to last post
  53. Logistic Regression of Weekly NFL Data

    This guy uses a type of regression to predict NFL games: http://trevorbischoff.com/amos-2016-nfl-predictor/

    Started by LeeBalto‎, 09-14-2016 06:46 AM
    regression
    • Replies: 1
    • Views: 811
    09-14-2016, 09:38 AM Go to last post
  54. Regression analysis and reflective vs. formative scales

    Hey there, I am using multiple regression analysis to analyse the data of an empirical study in the behavioural science. One of the scales I'm...

    Started by timsad‎, 09-11-2016 08:19 AM
    • Replies: 0
    • Views: 546
    09-11-2016, 08:19 AM Go to last post
  55. Same variable on both sides - how to resolve this?

    I have a regression which is supposed to capture the effect of R&&D expenditures on stock returns, given some controllers X1, X2 and volatility, i.e....

    Started by Cupcaker‎, 09-10-2016 07:01 AM
    • Replies: 1
    • Views: 969
    09-11-2016, 07:42 AM Go to last post
  56. What Kind of Regression Do I Need for This?

    I have a data like this. I need to find 7 predictors' coefficients for the best model to predict dependent. It can only be 1 and 0. A B ...

    Started by permaximum‎, 09-09-2016 10:26 AM
    • Replies: 6
    • Views: 691
    09-09-2016, 03:09 PM Go to last post
  57. Forecasting with Google Trends

    Hi Guys, I try to investigate wether Google Search data can improve a forecasting model for the German housing market regarding prices and...

    Started by Masimo‎, 09-09-2016 05:52 AM
    • Replies: 0
    • Views: 575
    09-09-2016, 05:52 AM Go to last post
  58. Research Help_Regression Analysis_Log Transformation for Better Fits

    Dear All, I'm doing a research on the estimation of "Tunnel Cost" for which I carried out some regression analysis based on data of 30 tunnel...

    Started by chro‎, 09-07-2016 12:40 PM
    • Replies: 2
    • Views: 787
    09-07-2016, 02:26 PM Go to last post
  59. Categorical multiple linear regression analysis - what would you do?

    Noob here. I'm doing a project to determine how different factors (race, insurance status) are related to distance from pediatric urologists. I'm...

    Started by gliomanerd‎, 09-01-2016 10:35 AM
    categorial analysis, multiple regression
    • Replies: 4
    • Views: 735
    09-05-2016, 07:16 PM Go to last post
  60. VIF issues

    Good afternoon, I ran a hierarchical regression model, (main effects in step 1, two-way in step 2 and three-way in step 3). My VIF in step 1 are...

    Started by Julie26‎, 09-03-2016 06:24 PM
    • Replies: 5
    • Views: 1,263
    09-05-2016, 09:16 AM Go to last post

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