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# Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

1. ### Mediation reporting

I was wondering if someone could please tell me if I am supposed to report either unstandardized coefficients (b) or the standardized coefficient...

• Replies: 0
• Views: 1,172
01-05-2013, 07:01 PM
2. ### Predicted standard deviation with simple linear regression

Hey, I am working on a prediction of wind speed. I'm using two datasets, one with 10 years of data, one with 1 year. I perform a simple linear...

• Replies: 0
• Views: 1,494
01-05-2013, 08:28 AM
3. ### Dummy's, significant and not significant

I have in my model two dummy's, for a categorical variable with 3 categories (native, EU-immigrant and non-EU-immigrant). The reference category is...

• Replies: 1
• Views: 1,116
01-05-2013, 07:07 AM
4. ### Ordered probit model and discret independent variables?

Hello there If I want to estimate an ordered probit mode,l because my depend varible takes the ordered values 1,2,3 and 4, can I do that if I...

• Replies: 2
• Views: 1,897
01-05-2013, 01:32 AM
5. ### simultaneous causality correction?

Hi Based on a data set I have to answer whether the use of tele-diagnosis and tele-evaluation by health professionals in Andalusia has a positive...

• Replies: 2
• Views: 7,793
01-04-2013, 04:44 PM
6. ### MRC, Index as dependent variable

My question has to do with doing an MRC, using an index at the dependent variable. This is a survey, having 62 questions, all rated on the same...

• Replies: 1
• Views: 1,752
01-02-2013, 07:21 PM
7. ### Trouble with GLMs (Using R)!

Greetings! I've been trying to analyse some data for a while now, and I have found what I think the best model for my GLM is. However, I have friends...

• Replies: 4
• Views: 1,504
01-02-2013, 04:52 PM
8. ### mutliple interactions in same equation

Hi Folks, I am reviewing a manuscript that uses four interactions in the same equation, and i am wondering if authors need to include higher order...

• Replies: 0
• Views: 1,048
01-02-2013, 03:53 PM
9. ### linear regression Johnson Transformation

If two predictor variables transformed by the Johnson Transformation (see Minitab or Johnson 1949) are used in separate linear regressions (assuming...

• Replies: 1
• Views: 3,361
01-02-2013, 10:59 AM
10. ### Need help with interpretation of p-value & t-test

Hi, I am not really used to handle statistical problems, so i hope for your help. Ive got this text that i need to understand, it's regarding two...

• Replies: 2
• Views: 2,716
01-02-2013, 08:52 AM
11. ### Logistic regression

Hello I just ran a logistic regression on some data I have. The response is binary (0/1) and the independent variable is categorical with 3...

• Replies: 4
• Views: 2,087
12-30-2012, 07:55 PM
12. ### Regression tree significances

Hello I have some rainwater roof runoff data for 69 rain events, plus 4 possible explanatory variables. Individual regressions (linear, power,...

• Replies: 0
• Views: 1,875
12-29-2012, 11:22 AM
13. ### interpreting parameters in multivariate multiple regression

Hi all, I have a repeated measures multivariate multiple regression. All measures were sampled three times (hence, Time is the within subject...

• Replies: 0
• Views: 1,551
12-28-2012, 12:27 PM
14. ### Multivariate regression with sparse data for a few independent variables

In my analysis I have several independent variables. My dataset has 2000 records but for a few variables the data is sparse, i.e., information is...

• Replies: 0
• Views: 1,301
12-27-2012, 09:26 PM
15. ### Comparing a multiple linear regression model across two groups

Hi everyone, I've a problem with statistic, which is driving me crazy. I hope someone finds the time to give me a hint or something :) I am...

• Replies: 0
• Views: 2,726
12-26-2012, 12:20 PM
16. ### Logs

Hey, I am running a multiple linear regression twice: first without taking logs for all variables second, by taking logs for both dependent and...

• Replies: 0
• Views: 1,240
12-24-2012, 11:23 AM
17. ### multiple regression with power law relationship [help!!!]

I am trying to carry out multiple regression of a dependent variable (DV)with 2 independent variables (IV1 & IV2) that exhibit power law relationship...

• Replies: 0
• Views: 3,089
12-23-2012, 07:43 PM
18. ### How to incorporate control variables in SEM?

Hey guys, I have a very simple model in which 4 institutional dimensions (Reg, Cog, Norm, Cond) are supposed to predict "Rate" and this in turn is...

• Replies: 0
• Views: 2,836
12-23-2012, 04:53 AM
19. ### Linear Regression modeling on Graphics Cards: Am I missing something?

:wave: I am trying to understand how to choose a graphics card based on a price to performance value for each card. I have a number of...

• Replies: 2
• Views: 1,781
12-22-2012, 03:31 PM
20. ### Significance level with entire population?

Hi everyone, I have a short question, and would really appreciate if someone could help me out. I have done multivariate regression analysis...

• Replies: 3
• Views: 1,937
12-20-2012, 10:24 AM
21. ### Using the same control variable twice... problem? Drawing covariances?

Hey, I'm trying to test a simple model consisting of three layers IV (Institutional environment) --> MV (Entrepreneurial Activity) --> DV...

• Replies: 0
• Views: 1,102
12-20-2012, 05:54 AM
22. ### Binary logistic regression. missing values

Hi. I have a question about missing values. My dependent value is whether the respondend voted in the last election or not - N=2600 cases. I want...

• Replies: 0
• Views: 1,139
12-19-2012, 04:55 AM
23. ### Entering variables: Part or partial correlation

Hi, The software packages I have seen display and use partial correlation - but not part correlation - to select the iv that will enter the...

• Replies: 0
• Views: 893
12-18-2012, 11:35 PM
24. ### Control variables, what to do in practise

I understand the theoretical use of control variables in regression analysis but when it comes to actually using them in practise i am stumped. Do...

• Replies: 1
• Views: 1,386
12-17-2012, 05:31 PM
25. ### Ordered probit model (panel) with random effects - stata - regoprob command

Hi, I am currently working on my masters thesis and am having some trouble. I have tried a variety of specifications and cannot seem to get...

• Replies: 0
• Views: 3,018
12-17-2012, 04:26 PM
26. ### Easy but need help

Hi all! I am doing an experiment involving the age children started wearing glasses and comparing this to the age a parent started wearing glasses....

• Replies: 1
• Views: 1,372
12-15-2012, 09:31 PM
27. ### Extremely large Odds Ratios?!

Hi, I've conducted a binary logistic regression with 1 independent variable (Type of property: flat/maisnette, terraced, semi-detached, detached and...

• Replies: 4
• Views: 12,033
12-13-2012, 10:19 AM
28. ### By which dimension to cluster standard errors in linear regression?

Hello, This is my first post to this forum. All direct help, as well as references to other sources discussing the subject, are greatly...

• Replies: 0
• Views: 2,015
12-13-2012, 07:18 AM
29. ### Simultaneous Equations Model - Endogenous/Exogenous Variables

I'm having doubts about the first question, I think Qt should be exogenous as although other endogenous variables depend on it, Qt doesn't depend on...

• Replies: 0
• Views: 1,891
12-13-2012, 12:34 AM
30. ### Questions on Testing for Residuals

Hi, I'm new on here and I'm sorry if I posted in the wrong section. So I just went over testing of residuals for regression analysis and have a...

• Replies: 2
• Views: 1,373
12-12-2012, 11:19 AM
31. ### Still a count variable?

First off, I hope this is the right forum. I'm not sure which other one would be more appropriate for the question. I have a dependent variable...

• Replies: 6
• Views: 2,036
12-11-2012, 07:22 AM
32. ### White test for heteroskedasticity

HI, I build a three factor model to explain excess return of a stock. I found low levels of heteroskedasticity through a white test. but I don't...

• Replies: 1
• Views: 2,049
12-11-2012, 03:44 AM
33. ### how do i do this final project =(

1) Sale prices of apartments. The data is saved in the SALES file. A Minneapolis, Minnesota, real estate appraiser used regression analysis to...

• Replies: 4
• Views: 2,769
12-10-2012, 04:47 PM
34. ### Structural Equation Modeling with panel-data - Where to look for the overall effect?

Hey, I build a simple longitudinal model as can be seen in the following picture between my independent variable "Ease" and my dependent variable...

• Replies: 0
• Views: 1,465
12-10-2012, 04:15 AM
35. ### test homogeniety of variances with residuals or observations?

When doing a multiple regression and testing for homoscedasticity some people look at raw observations and others the residuals. Which is correct? ...

• Replies: 1
• Views: 1,191
12-08-2012, 01:15 PM
36. ### What are the criteria for variable selection for Canonical Correlation ?

If we have respondent level data for Multi domains (eg., Demographic + Loyalty + Behavior + Attitude + Usage), while performing Canonical Correlation...

• Replies: 1
• Views: 1,442
12-06-2012, 04:59 PM
37. ### Embarrasingly easy question re. Regression analysis/Forecasting/Time Series

Hi, I have sales data for 2 years, over various product types, like this: Date Product Quantity Sold Total sales invoice Price per unit a a...

• Replies: 3
• Views: 1,822
12-05-2012, 02:38 PM
38. ### Logistic regression - Hosmer and Lemeshow test with 0 df in Block 1

Hi everyone! :wave: Context: I want to see how coping strategies (3 categories) affect the anxiety level (binary outcome) of the participants after...

• Replies: 0
• Views: 2,603
12-05-2012, 02:05 PM
39. ### Modeling Future Logistic Regression Covariates

Hello, I have a logistic regression model which implicitly estimates the probability that a business will default in each of 8 future quarters...

• Replies: 0
• Views: 1,242
12-05-2012, 12:06 PM
40. ### Missing terms in Logistic Regression

I'm running a model that contains three treatments (control, proceduralcontrol, and treatment) and three feeding levels (nofeeding, chum, satiation)....

• Replies: 0
• Views: 1,091
12-04-2012, 09:01 PM
41. ### Regression- Standard Errors

I have a general question regarding standard errors with regards to regression analysis, "filling in the blanks" so to speak. What formula would be...

• Replies: 0
• Views: 1,381
12-04-2012, 11:50 AM
42. ### paper replication

Hi all I am trying to replicate this paper using STATA: HETEROGENEITY BIASES, DISTRIBUTIONALE FFECTS, AND AGGREGATE CONSUMPTION AN EMPIRICAL...

• Replies: 2
• Views: 1,503
12-04-2012, 06:16 AM
43. ### Fit Gompertz with vector of dependent variables.

Hi community, Do any of you know where or how I could fit a to a Gompertz? Usually, we just fit some variable vs time to a Gompertz like number...

• Replies: 0
• Views: 1,677
12-03-2012, 03:22 PM
44. ### Logistic regression logit or cloglog?

Hi folks,:wave: currently I'm performing a logistic regression and I'm not sure which link function I should use. I have a binary response...

• Replies: 3
• Views: 18,032
12-03-2012, 01:37 PM
45. ### Choosing the best dependent variable (Y)

Hello, I'm working on a multiple regression model. The dependent variable (Y) is an ordered multinomial qualitative variable. To do regression...

• Replies: 5
• Views: 3,046
12-03-2012, 05:03 AM
46. ### Adding up the coefficients of a contemporaneous and a once-lagged variable

Hello, I'm stuck on what's probably a trivial problem, but I can't figure out how to go about it as I am a semi-beginner, so I would really...

• Replies: 0
• Views: 1,658
12-01-2012, 07:46 PM
47. ### general linear model - missing coefficient in R?

Hi I am trying to run a nested general linear model. I run the following model: egg volume = Perturbation + Location%in%Perturbation. I have 3...

• Replies: 1
• Views: 2,872
12-01-2012, 07:13 PM
48. ### Normalized/Standardized values? Confirmatory Factor Analysis

Hey, I would like to do a regression analysis in SPSS and collected data for all my variables. However, I have four "latent" independent...

• Replies: 0
• Views: 1,486
11-30-2012, 01:17 PM
49. ### statement regarding estimators for econometrics

statement: when an estimator is unbiased and efficient, does it mean parameters can be estimated accurately? my opinion: no there is need of more...

• Replies: 2
• Views: 1,592
11-30-2012, 12:51 PM
50. ### Urgent Help Required.....

Dear all, i am doing a research these days. but i am facing a difficulty in statistics analysis. Actually i have measured a quantity "A" in the...

• Replies: 10
• Views: 1,964
11-30-2012, 09:37 AM
51. ### multiple regression categorical variable and different slopes

Hi All, I’m trying to run multiple regression with 2 independent variables and one categorical variable (two levels: male vs. female). The...

• Replies: 4
• Views: 2,011
11-30-2012, 05:13 AM
52. ### testing interaction between two independent variables

To test for interaction between two independent variables in a linear multiple regression model (e.g. 'A' and 'B' as independent variables; 'C' as...

• Replies: 0
• Views: 3,861
11-29-2012, 04:40 PM
53. ### Dummy Coding of Variable and interpretation

Discussion One of my IV in my regression analysis is religion 1=Catholic 2=Jewish 3=Protestant 4=muslim 5=other 6=none I recoded religion as...

• Replies: 8
• Views: 2,735
11-29-2012, 01:43 AM

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