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# Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

1. ### Gretl - Pooled Time Series Cross Sectional Data

I've been working on a multiple regression analysis on bank failures using a probit model. I am currently using cross sectional data but I would...

• Replies: 1
• Views: 5,458
07-18-2011, 05:35 PM
2. ### Regression analysis of more than two independent and dependent variables

Hello, I want to find the relationship between independent and dependent variables using regression analysis. There are 5 IV and 4 DV. Please...

• Replies: 8
• Views: 5,449
05-14-2012, 09:50 AM
3. ### Searching for analysis that would compare two trends of data

Hello, glad to be here. I am looking for an appropriate statistical analysis to address a problem similar to the one described below: Lets say I...

• Replies: 4
• Views: 5,446
03-01-2013, 03:15 AM
4. ### Kruskal-Wallis equality-of-populations rank test

Dear Colleagues I am using KW test to check the differences between Four different types of companies and I use four variables, so I check for...

• Replies: 0
• Views: 5,436
11-12-2010, 09:27 AM
5. ### Reporting hierarchical regression

I have a 2-step hierarchical regression. Step 1 Variable A = significant p<.001 Step 2 Variable A = now non significant Variable B =...

• Replies: 2
• Views: 5,434
01-15-2011, 07:01 AM
6. ### Now sure what to do now (4 variables, no interaction, significant correlated)

Hello everybody - I am in need of some statistical help as I'm a bit confused as to what to do next. I'll give you a rundown of my situation: I've...

• Replies: 7
• Views: 5,428
04-22-2010, 11:26 AM
7. ### LME in SPSS and R giving different results

I am trying to do a linear mixed model in both SPSS and R ... well, more precisely, originally I did it in SPSS, but now I want to use resampling to...

• Replies: 6
• Views: 5,423
06-11-2012, 04:31 PM
8. ### Cov in multiple linear regression

For multiple linear regression model Y = Xβ + e, assume X is non-random. Assume Gauss-Markov assumptions hold. Show that variance-covariance matrix...

• Replies: 3
• Views: 5,380
06-19-2009, 09:32 PM
9. ### Blinder-Oaxaca Decomposition for a Multivariate Linear Regression

Hello Everyone, I am working on a thesis that uses a multivariate linear regression to evaluate the racial wealth gap between four groups: whites,...

• Replies: 1
• Views: 5,379
04-28-2012, 11:36 AM
10. ### [newbie dumb question] Why is that the assumption of E(u)=0 essential for interences?

If E(u)=0 is violated, how would it affect the inference of parameters, such as by using t-statistics? My understanding is that if E(u)=0 is...

• Replies: 3
• Views: 5,361
02-10-2011, 12:27 AM
11. ### multinomial logit, marginal effects all insignificant!

Dear users, I am estimating a multinomial logit model. Concerning my coefficients, I find some variables being significant. After estimating the...

• Replies: 1
• Views: 5,350
01-25-2012, 04:49 PM
12. ### Gauss-Markov: Assumption no.5.

"Correlation between independent variables and the error term is 0". How do i check this (in SPSS)? I know this is basically the same as the...

• Replies: 1
• Views: 5,339
06-09-2010, 03:34 PM
13. ### Logistic model interpretation - insignificant main effect, significant interaction

Hi! I am running a logistic regression model where I investigate what characteristics matter when a group of people chooses representatives for...

• Replies: 5
• Views: 5,337
04-10-2013, 05:19 PM
14. ### meaningful value for R squared

Hi, I did a simple linear regression with two variables (X & Y), both scores that were calculated (mean) on the basis of scores for the items of...

• Replies: 3
• Views: 5,332
02-13-2012, 09:20 AM
15. ### Stepwise regression – Model selection based on AIC index

I have a model with 6 explanatory variables (x1,x2,x3,x4,x5,x6) and 100 observations. It is given to me that after applying Stepwise regression based...

• Replies: 0
• Views: 5,325
05-10-2014, 10:53 AM
16. ### Problem interpreting Multiple Regression on Video Game Sales

Hi everyone, I am a new member, I am so glad to have found the forum. I'm tearing my hair out about this problem. These are my results: ...

• Replies: 3
• Views: 5,323
11-11-2009, 04:28 PM
17. ### VAR EViews: Heteroskedasticity and non-normal distribution of reiduals - White Errors

Hi, I am estimating the causality between the oil price and gdp in EViews. I am using quarterly and real data. I estimated the data as log and in...

• Replies: 1
• Views: 5,322
06-21-2013, 07:22 AM
18. ### Regarding negative correlation and negative variance estimation result

In ANOVA, we sometimes talk about that variance estimation can get negative result when there is negative correlation. I do not understand what...

• Replies: 8
• Views: 5,320
09-12-2011, 11:32 PM
19. ### interaction in logistic regression

Hi, I have run a moltinomial logistic regression and wanted to test for moderation effects of some variables so I tested the model with main effects...

• Replies: 10
• Views: 5,319
07-01-2011, 08:03 PM
20. ### Need help urgently

I need to run a test to run if a relationship is significant. Hyphothesis H1: Entertainment of the advertisement on web is positively associated...

• Replies: 14
• Views: 5,290
09-03-2010, 01:35 PM
21. ### Analytical linear regression?

My lecturer stated that no method exists to determine the line of best fit for a set of data analytically. He went on to state that computers through...

• Replies: 6
• Views: 5,288
08-05-2011, 06:01 PM
22. ### Least square estimates

(y1, x1)...(yn, xn) and (w1,x1),.....(wn,xn) are independent oberservations where x1...xn are fixed constants. Suppose we fit the first model yi = a1...

• Replies: 3
• Views: 5,279
BGM
08-22-2011, 11:49 PM
23. ### Multiple Regression - Adjusted Rsquare & SEE vs. coefficient sig.

I'm doing an assignment where we are just learning about regression. We were given a set of data and ran it through SPSS. Now, I am trying to...

• Replies: 1
• Views: 5,278
02-04-2011, 01:51 PM
24. ### Slope comparison in two-phase regression analysis

Hi I am using a two-phase regression analysis to analyze some physiological data. The analysis is based on using two, simple linear regressions...

• Replies: 0
• Views: 5,271
03-01-2011, 05:27 PM
25. ### Calculating Cook's Critical Value

Hey can someone show me how to get F (4,15) (0.5) = 0.8783.

• Replies: 7
• Views: 5,266
05-12-2012, 01:37 PM
26. ### Negative fitted values

Hi, I am trying to imput the prices of houses in a database using information on the carachteristics of the houses and a database in which i have...

• Replies: 2
• Views: 5,261
08-26-2010, 08:20 PM
27. ### Regression for CAPM.. Finance

I am testing CAPM (a financial model) using regression. Would It be correct to say that 'c' (the constant) is equal to the alpha? Thanks

• Replies: 2
• Views: 5,253
12-26-2010, 07:24 PM
28. ### Meaning of Logarithmic Trend Line

Hello Everyone I was just curious as to the meaning of the slop in an Excel logarithmic trendline. For example, y = -0.039ln(x) + 1.6792, where x...

• Replies: 0
• Views: 5,250
10-13-2010, 10:45 AM
29. ### Regression Analysis Assignment

:confused: hi all! I'm new here but I sort of need some help. I have this regression analysis assignment to do using SPSS and stats knowledge...

• Replies: 0
• Views: 5,224
11-05-2007, 09:44 AM
30. ### negative binomial regression coefficients and exp(b)

Thank you so much anyone... I have the results of a negative binomial where the DV is the log count of meals obtained. I have continuous predictors...

• Replies: 4
• Views: 5,222
08-27-2013, 09:28 AM
31. ### 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...

• Replies: 6
• Views: 5,220
11-01-2016, 03:52 PM
32. ### Logistic Regression of NFL Data

Week 5 picks from a logistic regression model for the NFL: http://trevorbischoff.com/nfl-2015-week-5-predictions/

• Replies: 8
• Views: 5,214
12-30-2015, 01:19 PM
33. ### positive and negative beta

G'day. I was wondering, in my multiple regression model, I added only all positive or all negatively correlated independent variables thinking...

• Replies: 1
• Views: 5,208
07-29-2010, 05:44 PM
34. ### Interpreting Multiple Regression vs Correlation

Hi, I'm analysing the results to a satisfaction survey. I want to work out the key drivers of satisfaction so I'm using a question relating to...

• Replies: 4
• Views: 5,200
05-28-2012, 05:58 AM
35. ### Sum of Squares Model Proof

I'm attempting the proof of the sum of squares model. I'm not exactly sure where to start but this is what I have to prove. sumYhati^2 = nYbar^2...

• Replies: 1
• Views: 5,195
10-16-2011, 06:35 PM
36. ### backward stepwise regression: all variables eliminated

Hello everyone, Initially I perfomed a standard logistic regression (forced enter method in spss) on my data (small sample): n= 85 and 8...

• Replies: 2
• Views: 5,158
08-21-2013, 08:38 AM
37. ### Joint hypothesis testing

Hi, I am working on a 'quick' study on whether ex-ante probabilities predict the actual realized outcomes of sporting events. My model is ...

• Replies: 4
• Views: 5,148
10-31-2011, 06:30 AM
38. ### Excel's t stat question.

Hi guys, I'm a little confused over this right now. I performed a regression in excel and as an example, this is what i got for my first...

• Replies: 3
• Views: 5,138
11-23-2010, 06:49 PM
39. ### Is the difference significant.

I'm using stata since only a few weeks for my thesis. I can use some help regarding the following: I wanted to know what the mean grade is for...

• Replies: 0
• Views: 5,123
10-28-2010, 10:04 AM
40. ### R-squared and Explained Sum of Squares?

I'm not quite sure how to get started on this one, any suggestions? Thanks!! "If you have the following: R-squared for Y on X1,2,3 is 0.25,...

• Replies: 2
• Views: 5,123
02-28-2011, 12:09 PM
41. ### change in significance level (univariate vs multivariate)

I have 3 independent variables, X, Y and Z when I do univariate regression on each of them, the t-statistics are -4.7, 1.8 and 2.2, respectively....

• Replies: 4
• Views: 5,113
10-25-2011, 10:09 AM
42. ### Help needed with ANOVA analysis

ANOVA df SS MS F Significance F Regression 6 5510.4 918.4 11.67 0.0081 Residual 5 393.2 78.65 Total ...

• Replies: 1
• Views: 5,110
11-18-2008, 03:32 PM
43. ### Passing-Bablok regression

Hi all, Does anyone knows how to perform Passing-Bablok regression in SAS? I have never done it do the SAS code (with or withoutan example)...

• Replies: 0
• Views: 5,110
szm
03-18-2013, 01:56 PM
44. ### Significant Correlations - No Sig Beta Weight

Hi guys, I'm hoping that someone can clear up my confused state of mind...:( I have conducted a standard MRA and my problem is that even though...

• Replies: 2
• Views: 5,103
10-11-2010, 05:20 PM
45. ### What to do when the continuous dependent variable is zero more than 50% of the time

That's basically the question - What to do when the continuous dependent variable is zero more than 50% of the time? Are there alternatives to...

• Replies: 3
• Views: 5,099
08-03-2010, 04:06 PM
46. ### what t value is usually the threshold for significance?

i have an exercise asking me to estimate the t values of the coefficients of my regression and then state if they significant or not. but he does not...

• Replies: 4
• Views: 5,094
01-05-2014, 12:36 AM
47. ### Linear regression on bio-data.

Hi all, I'm completely new to this forum so forgive me (and tell me) if I break protocol in any way. My setup is: I have n animals. I believe...

• Replies: 6
• Views: 5,093
02-23-2011, 07:37 PM
48. ### Classification Rate of Multivariate Logistic Regression

Hello, I'm running a binary (2 groups), multivariate (multiple predictors) logistic regression analysis, and would like to test the classification...

• Replies: 1
• Views: 5,087
09-29-2009, 03:01 PM
49. ### Help-The F or chi2 model statistic has been reported as missing

Hello All, I use Robust regression for event study- cross sectional. I have 25 industries dummies (0,1) in my regression and always "Adj...

• Replies: 0
• Views: 5,079
12-13-2011, 08:30 AM
50. ### simple logistic regression question

I'm doing a willingness to pay survey to see if people are willing to spend \$1 for clean water. I randomly sampled 100 people and one of the...

• Replies: 5
• Views: 5,067
02-28-2011, 12:36 AM
51. ### Probit Model: Liklihood Ratio Significant, Very Low Pseudo R-Square

I'm running a probit model in Stata, and I'm a bit confused by the results. The LR test is highly significant, .0000, but the Pseudo R-Square is very...

• Replies: 0
• Views: 5,057
02-25-2011, 02:34 AM
52. ### P value results

Dear Colleagues I did a bivariate regression using 10 independent variables on each dependent variable. all the results are significant at 95%...

• Replies: 7
• Views: 5,051
01-06-2011, 07:08 PM

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