1. 10-14-2010
Views:
36,442
Page 7 of 70 First 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 57 ... Last
Threads 361 to 420 of 4183

# Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

1. ### Model fit statistic for population-average specification

Hello everybody! For the purpose of my study I am using an exponential Poisson model with population-averaged (PA) effects, as implemented in...

• Replies: 0
• Views: 249
05-09-2016, 09:44 AM
2. ### Using Bonferonni in Multiple Regression

Hi all, I'm currently working on a data-set involving several continuous independent variables and i'm wondering how the Bonferonni correction can...

• Replies: 1
• Views: 271
05-09-2016, 05:37 AM
3. ### Multiple regression analysis - Linearity/homoscedasticity

Hello, I am currently having trouble determining if my predictors show enough linearity to be used in a standard multiple regression analysis, and...

• Replies: 2
• Views: 387
05-08-2016, 08:21 PM
4. ### Help for simple regression

My research question is: "Can we say that the number of hours of Internet use increases with Internet purchase?" with the variables: - Use of...

• Replies: 3
• Views: 494
05-08-2016, 06:34 PM
5. ### Imputing Missing Values using Regression

I have a table of 4 variables where some of the data is missing and I need to impute the missing values, my table is as follows: X1 X2 X3...

• Replies: 3
• Views: 389
05-06-2016, 05:21 PM
6. ### Significant two-way interaction, but simple slopes are n.s.

Hi everyone, I've seen similar questions like mine posted here before, but none of the replies were ever clear enough, so here's my Q. Thanks in...

• Replies: 1
• Views: 348
05-06-2016, 12:10 PM
7. ### How to select the Independent Variables for modelling given 100 variable??

Let's say i have selected my DV and i have 100 variables from which i have to choose my IDVs for the regression model(say multiple regression). ...

• Replies: 0
• Views: 311
05-06-2016, 04:19 AM
8. ### Multiparameter fittting - confidence intervals criterion

I made a multiparameter fittting (7 adjustment parameters, 45 experimental points). I obtained enormous confidence intervals for 95%. There is a...

• Replies: 0
• Views: 345
05-05-2016, 11:12 PM
9. ### Please anyone help due monday

Hey guys, Im doing a mathematics degree and have this stats subject and honestly have no clue whatsoever on how to do anything in this class. I have...

• Replies: 2
• Views: 329
05-05-2016, 02:23 PM
10. ### normality assumption: data itself, or residuals ?

I have a question about the normality assumption, in regression, ANOVA, and T-test: The normalization assumption is for the original data and...

• Replies: 3
• Views: 1,615
05-04-2016, 11:21 PM
11. ### Stepwise Regression Limitations Explanation

I've recently been working on building a model and have come across a number of different approaches. I'm particularly interested in the limitations...

• Replies: 12
• Views: 700
05-04-2016, 06:39 PM
12. ### Do I have a non-linear regression?

Hello everyone, I want to start by saying that I don't have too much experience working with continuous dependent variables. I have worked more...

• Replies: 5
• Views: 773
05-04-2016, 02:19 AM
13. ### Quick Mediation Analysis Question

Hi Everyone, I have a quick question about interpreting a mediation analysis from Hayes' PROCESS macro. After running a mediation analysis, I...

• Replies: 2
• Views: 760
05-04-2016, 02:01 AM
14. ### Index & Dummies - Italian Mafia

Hey. i am working on a paper about the mafia in italy. my equation: Y=beta0 + beta1*MPI + beta2*Controls Y = Response Rate in a given city...

• Replies: 0
• Views: 275
05-03-2016, 01:11 PM
15. ### Interpreting Odds Ratio after Weight of evidence transformation

I am doing a logistic modeling with several continuous variables and binary outcome variable. 1- event 0-non event. I did the initial modeling with...

• Replies: 2
• Views: 310
05-03-2016, 10:16 AM
16. ### Combining Two Samples (one w/ intervention and one w/ out intervention)

I have a local dataset with a continuous predictor and binary outcome. I will use logistic regression to predict the binary outcome with the...

• Replies: 7
• Views: 511
05-02-2016, 10:01 PM
17. ### testing seemingly unrelated regressions assumptions in R

Hi there! I have a fitted SUR model and want to test if the assumptions for SUR (not the ordinary linear assumptions, since i've already checke...

• Replies: 1
• Views: 364
05-02-2016, 02:54 PM
18. ### Cox Regression - time dependent

Dear all, I have a question regarding the cox regression. I have conducted a dataset with Top50 Boxoffice Data for the U.S market. It contains...

• Replies: 3
• Views: 400
05-02-2016, 09:45 AM
19. ### Types of regression: Article

Well a page, but I was not sure what to call this :p By no means complete or even close but interesting. There are hundreds of types of...

• Replies: 0
• Views: 271
05-02-2016, 08:49 AM
20. ### Fill in multiple missing values given correlation matrix

I have a correlation matrix: mat <- round(cor(mtcars), 2) mpg cyl disp hp drat wt qsec vs am gear carb mpg 1.00...

• Replies: 16
• Views: 1,003
05-01-2016, 09:39 PM
21. ### Linear Regression Interpretation

Hi there, I am running a Multiple Linear Regression analysis. I have 2 predictor variables (self-worth and self-acceptance) and 1 criterion...

• Replies: 4
• Views: 446
05-01-2016, 08:38 PM
22. ### Multinomial logit / time-series fixed effects / multivariate regression: Which one?

As part of a larger study, we have collected a wealth of data on the interactions customers engage in when buying and using a service. ...

• Replies: 0
• Views: 296
05-01-2016, 05:50 AM
23. ### Logistic reg w/ ratio as predictor

Is there anything I need to know when using a ratio as an independent variable in the model. Is it better to use log(ratio) ? Not an easy web...

• Replies: 1
• Views: 358
04-30-2016, 02:22 PM
24. ### [Logistic Analysis] How does SPSS calculate the 0.5 Cut-Point?

I am interested in determining the classification accuracy of an outcome (binary DV - whether a participant has capacity or not to make a legal...

• Replies: 0
• Views: 331
04-29-2016, 05:25 PM
25. ### Multivariate analysis, canonical correlation

Hello, I conducted an experiment with 18 subjects who participated in a simulator experiment. Each participant had to perform a task with 6...

• Replies: 0
• Views: 417
04-28-2016, 09:08 AM
26. ### Interpretation of coefficients, dependent variable in (%), independent variable in ln

Hi, I have a very simple question. I have the following equation. My dependent variable is CRES which is the share of renewables in a country's...

• Replies: 0
• Views: 314
Rex
04-28-2016, 07:07 AM
27. ### Problem with replicating a paper

I'm having some trouble at replicating this paper (text here: http://www.michiganjb.org/issues/52/text52c.pdf) The paper wants to assess the economic...

• Replies: 0
• Views: 247
04-28-2016, 04:29 AM
28. ### Writing down firth logistic regression equation

Hi, This is a really simple question that I'm sort of embarrassed I can't answer - how would you write down a firth logistic regression? Now to...

• Replies: 6
• Views: 439
04-27-2016, 12:59 PM
29. ### GLS (Generalized least Squares) STATA

generalized least squares (GLS) is a technique for estimating the unknown parameters in a linear regression model. GLS (Generalized least Squares)...

• Replies: 0
• Views: 292
04-27-2016, 05:16 AM
30. ### Regression with stratified data: What to do?

Hi, I want to model a bird population in a country via regression analysis (Poisson regression due to count data). In order to optimize the...

• Replies: 0
• Views: 268
04-27-2016, 03:39 AM
31. ### Minimum number of cases for the reference level

Before I ask this I have the true population so I am not sure this issue even applies :p Is there a minimum number of cases the reference level...

• Replies: 7
• Views: 523
04-26-2016, 03:59 PM
32. ### Regression to compare mean differences?

Hi everyone, I am doing a project with two different groups (clinical and control). I want to compare their scores on a couple of variables (ex:...

• Replies: 1
• Views: 394
04-26-2016, 06:23 AM
33. ### Multiple, hierarchal regression - division of p-value?

Hey everybody! I am pretty new to this forum and also to statistics. In these days I try to analyze the data for my Bachelor thesis. I study...

• Replies: 0
• Views: 279
04-26-2016, 01:34 AM
34. ### zero value of the regression parameter

Hello. I would like to ask if anyone knows a website with the theme: regression testing parameter. I need only theory on the topic (to school). Just...

• Replies: 5
• Views: 401
04-25-2016, 09:33 PM
35. ### Cochrane Orcutt Eviews 9

Cochrane Orcutt estimation is a procedure in econometrics, which adjusts a linear model for serial correlation in the error term. It is named after...

• Replies: 0
• Views: 502
04-24-2016, 09:57 PM
36. ### Multiple Regression with Ratio as Independent Variable

I am doing a multiple regression and want to use a ratio (number of support staff to number of students) as an independent variable. Does dividing...

• Replies: 0
• Views: 270
04-24-2016, 09:48 PM
37. ### Positive Pearson Correlation but negative coefficient

Dear All I am trying to create a regression model for estimating electricity demand. The independent variables considered are population and GDP....

• Replies: 0
• Views: 354
04-24-2016, 07:39 PM
38. ### Newbie in trouble (is regression the right way to go here?)

Hi there! (background, skip if wanted) New member here. Finance student with an exciting area to write a paper about but I have not taken any...

• Replies: 0
• Views: 453
04-21-2016, 04:36 AM
39. ### Likert Scale as dependent variable

Hi all, I have a question regarding the analysis of my survey data. I have created one variable of seven likert scale variables after conducting...

• Replies: 9
• Views: 899
04-20-2016, 04:11 PM
40. ### Linear regression with all categorical variables SPSS

Hello, I am running a multivariate regression analysis on the presence of an organism in an infection (dependent variable), and certain risk factors...

• Replies: 4
• Views: 413
04-20-2016, 12:49 PM
41. ### Regression Misconceptions

Dear all, Just wanted to clear some misconceptions I have about regression analysis. Your help would be highly appreciated :) 1) One of the...

• Replies: 1
• Views: 316
04-19-2016, 03:17 PM
42. ### Factor scores as independent variables in multiple regression

I'm checking that I have understood this right. Factor scores must be achieved via oblique rotation, because factor scores must be allowed to...

• Replies: 0
• Views: 271
zxc
04-19-2016, 11:25 AM
43. ### Can covariates be random variables? (logit)

Hi Everyone. I have been discussing a project at work. My colleague said that he is going to estimate a logit model and include as a covariates...

• Replies: 5
• Views: 582
04-18-2016, 05:32 PM
44. ### Confounder confounds at only one level of polytomous variable

Hello! I have looked for a post on this but have been unsuccessful. It would be great if you could help. I am using logistic regression in SAS. ...

• Replies: 0
• Views: 288
rkw
04-16-2016, 06:35 PM
45. ### Question about dummy variables

Hi Guys, So I am doing a project for a class, and had a question on how to interpret something on my SPSS. I am designing a multivariate regression...

• Replies: 0
• Views: 369
04-16-2016, 10:47 AM
46. ### Using weights in regression

I don't really understand this argument. I thought you had to use weights in regression always when you were not randomly sampling. But this argues...

• Replies: 2
• Views: 451
04-15-2016, 02:12 PM
47. ### Is correction for attenuation in my regression analysis necessary?

Hi everyone, I'd like to know if I should consider a correction for attenuation in a multiple regression I'd like to run on my data. Here's...

• Replies: 7
• Views: 758
04-15-2016, 04:39 AM
48. ### Relative impact of predictors in linear regression

I want to rank variables from most to least important, in terms of impact on the DV. My predictors are either interval or dummy. My DV is interval. I...

• Replies: 8
• Views: 807
04-14-2016, 09:02 AM
49. ### Generating random estimates

I have 5 years worth of actual monthly data. I want to "predict" (examine really) possible values 12 months into the future. I don't want to be...

• Replies: 0
• Views: 318
04-13-2016, 03:55 PM
50. ### Seemingly unrelated regression in R with many variables

Hey! I'm sitting here with a data frame with over 100 variables and I'm supposed to model my 8 dependent variables with seemingly unrelated...

• Replies: 0
• Views: 356
04-13-2016, 07:08 AM
51. ### A purely conceptual question

Assume a logisitc regression model includes a continuous variable like age and a categorical variable like gender and an interaction term for these. ...

• Replies: 0
• Views: 389
04-12-2016, 05:30 PM
52. ### Comparison of regression coefficients between (nested) geographic regions

Hi All, I would like to compare the effect of an explanatory variable (say X1) on a response variable (Say Y) between two geographic regions in...

• Replies: 0
• Views: 394
04-11-2016, 08:54 PM
53. ### Is this a sensible approach for a 3x3 factorial experiment?

Hi all I'm hoping that someone can let me know whether this is a suitable approach for analysing a dataset. I have a 3x3 factorial design, so 2...

• Replies: 0
• Views: 648
04-08-2016, 04:07 AM
54. ### Effect Size in Poisson Reg with a Binary Predictor

Well, I don't regularly come across count variables as dependent variables. What is the best effect size to report for a Poisson reg model with a...

• Replies: 2
• Views: 501
04-07-2016, 01:26 PM
55. ### Help with a simple linear regression with a huge backlog of data

Hi there. I am trying to run a regression that will help me predict Y from X. While this is pretty simple and I have done it already, I have many...

• Replies: 1
• Views: 425
04-07-2016, 07:16 AM
56. ### Compare coefficients of two regression models

Hi, I have a little problem I hope someone can help me with. I run 2 multiple regression models with the same independent variables but...

• Replies: 1
• Views: 263
04-07-2016, 07:10 AM
57. ### low frequency independent variable in logistic regression

I'm running a logistic regression and I think there's a variable that I'm not treating properly. I'm modeling traffic accidents (1) vs. no...

• Replies: 6
• Views: 562
04-06-2016, 07:06 AM
58. ### Confused about my Logistic Regression output (SPSS)

Hi Guys, I've conducted a binary logistic regression using 2 categorical predictors (Static-moving and moving-static) and an outcome variable...

• Replies: 4
• Views: 417
04-06-2016, 04:44 AM
59. ### Information Criterion to compare different linear models

Dear Community, In order to perform a price forecast, I built four linear models:1-3 have one independent variable, 4 has two independent...

• Replies: 1
• Views: 370
04-05-2016, 07:25 AM

Page 7 of 70 First 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 57 ... Last

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.

Note: when sorting by date, 'descending order' will show the newest results first.