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# Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

1. ### Thoughts on logistic regression dataset

Hello! I'm running a logistic regression with 5 or so IVs predicting the outcome. The problem is that only around 300 cases out of about 1300 have...

• Replies: 2
• Views: 2,167
07-25-2012, 06:04 PM
2. ### Next step in logistic model...any thoughts?

Hello! I would really appreciate your input on this if you have a minute! I’m looking at 3 different characteristics of 'prestige', and how these...

• Replies: 0
• Views: 853
09-15-2012, 10:54 AM
3. ### Best way to analyze time 1/time 2 data??

Hi There! I was hoping to get some input on the best way to test some data that I have collected (using SPSS). In short, respondents make an...

• Replies: 1
• Views: 999
06-09-2014, 07:12 PM
4. ### Problem/question regarding Cox Regression

Hello! I am new to statistics and research and am looking for a little help. I am doing a study looking at the the effects of post-operative...

• Replies: 1
• Views: 1,126
08-13-2014, 08:39 PM
5. ### How to assess Goodness-of-fit

I have fitted a set of data points to an exponential decay curve of the equation: y=A+Be^(-t). I wish to assess the quality of fit. Is it OK if...

• Replies: 5
• Views: 1,999
09-30-2012, 11:48 AM
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: 1,756
01-02-2013, 07:21 PM
7. ### NEED HELP on degrees of freedom!!!! URGENT

Hello! I have finished my regression project and am writing my paper for a multiple regression model, but cannot seem to find in notes or online...

• Replies: 3
• Views: 2,430
12-15-2009, 06:17 PM
8. ### Both categorical and continuous predictors?

I'm sure this is very simple but I just want to be sure. I have actually been searching the web for a while now and can't seem to find a clear...

• Replies: 5
• Views: 1,893
03-21-2016, 04:35 PM
9. ### Does anybody know if the Oaxaca Blinder decomposition command is now available SPSS?

Hi, I was wondering if it was now possible to run the Oaxaca Blinder decomposition on SPSS? I know it is possible on Stata but I do not wish to...

• Replies: 0
• Views: 2,570
09-23-2013, 05:42 PM
10. ### Predicting non linear value

Hello, sorry to cross post, but I initially posted this in the wrong forum. Im trying to build a model to project the number of customer reviews...

• Replies: 0
• Views: 887
09-05-2012, 10:53 AM
11. ### House Price Regression - Need opinion and suggestion.

Hi everyone, This is my very first time running regression(am very excited :D) and any opinion and suggestion will be very welcome !! I have...

• Replies: 1
• Views: 2,815
04-30-2011, 01:06 AM
12. ### Multi-Factors model - Linear regression on Market Size

Dear all, I'm working on a multi factors model analysis to come up with a formula to estimate market size of some countries based on several...

• Replies: 4
• Views: 3,402
05-22-2013, 12:46 PM
13. ### Binary Logistic Regression- SPSS Output

Dear TalkStats Forum, I am currently looking into a data-set which measures previous cyber-crime victimization as well as whether the participants...

• Replies: 1
• Views: 1,489
03-03-2015, 03:58 PM
14. ### Multivariate timeseries regression - use of a dummy variable between two time periods

Dear stat people I am doing an analysis on how the relation between Y and three explanatory variables change from one time period to the next. I...

• Replies: 0
• Views: 1,338
12-11-2013, 01:11 PM
15. ### Comparing coefficients across sub-samples/groups with different models

I have a question in regards of comparing coefficients across sub-samples/groups. Group 1 consists of 400 observations, and Group 2 consists of 2500...

• Replies: 1
• Views: 1,109
05-15-2014, 06:11 AM

Hi all, I've never really understood the concept of "link functions". Is anyone able to point me in the right direction of something that could...

• Replies: 1
• Views: 2,969
04-12-2011, 05:51 AM
17. ### HELP NEEDED! Running a negative binomial regression in SPSS

Hey everyone, I'm new here, working on my master's thesis in strategic public relations, and am in over my head with statistics. I need to run a...

• Replies: 1
• Views: 6,121
02-03-2013, 11:49 PM
18. ### Master thesis, statistics check!

About me: Medical student with minimal statistical knowledge or research experience Question related to: statistical regression/correlation...

• Replies: 12
• Views: 2,756
06-02-2017, 03:24 AM
19. ### How to model my variables into a probit

Hey guys, Got a tricky issue here... I am trying to estimate a probit model. The binary dependent variable is employment status and the...

• Replies: 0
• Views: 1,255
07-20-2014, 02:38 PM
20. ### Moderated Regression Non-Signficant but Subgroup Correlation Significant??

Hi Guys, I'm having a bit of trouble trying to figure out some of my statistics and wonder if any one has some ideas for me? I've run a moderated...

• Replies: 3
• Views: 2,742
03-10-2017, 06:35 AM
21. ### Bayes Rule to summarize time series cumulative Logistic Regression output

Hello, I have been struggling to find a definitive answer to what should be a very simple question. I have a logistic regression model that...

• Replies: 0
• Views: 950
10-23-2012, 10:49 AM
22. ### 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: 1,244
12-05-2012, 12:06 PM
23. ### Regression Analysis for Aggregated Macro Economic Data with Thin Data

Hello, I am new to this forum, so thank you in advance for any help or advice. I am looking to build a model that produces an aggregated, index...

• Replies: 1
• Views: 1,272
07-03-2013, 03:03 PM
24. ### Multiple Regression

I am trying to figure out how to determine how long someone has been part of a study. The information provided is as follows: Supplements ...

• Replies: 1
• Views: 1,072
10-22-2012, 01:59 AM
25. ### Finding complex relationships with multiple independent variables

Howdy. Question - how can I find complex relationships when there are multiple independent variables. Specifically, I am looking at a situation where...

• Replies: 1
• Views: 2,090
07-25-2012, 10:45 AM
26. ### Multinomial 2 dv's?

Hi All. I'm happy to be part of the Talk. Question: Is is possible to do a multinomial logistic regression if you only have 2 categories of...

• Replies: 1
• Views: 2,590
11-26-2010, 08:44 AM
27. ### Table interpretation (odds)

Can someone help me interpret and understand this table? The question is: What effect does the age have on the odds for bodyweight=1 for persons who...

• Replies: 2
• Views: 2,324
12-09-2016, 05:06 PM
28. ### Correlation and regression

Hello, it would be nice if you could provide the appropriate theoretical steps for the following task: There is a shop which also operates a pub....

• Replies: 0
• Views: 1,010
DZ8
01-30-2016, 08:00 AM
29. ### Standard Deviation or Response / Prediction - Linear Regression

Hi, I'm hoping someone out there can help me with what is probably a very simple question. For a stats assignment, I've created a linear...

• Replies: 4
• Views: 11,429
10-20-2008, 04:47 AM
30. ### Logistic regression model returns lower than expected logit

Hi all, I'm using a logistic regression model with 3 variables to separate true positives from errors in a data set. All in all it seems to...

• Replies: 0
• Views: 1,703
05-12-2011, 01:39 PM
31. ### why the first two regressions are not enough and why the other two are

we want to see if there is income convergence when trade liberalization takes place. we use two measures. . The fi rst is the standard deviation of...

• Replies: 0
• Views: 1,025
11-17-2013, 05:19 AM
32. ### 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: 5,011
01-05-2014, 12:36 AM
33. ### analyzing residual plot by hand

Hi! Thanks in advance for looking at my query. I have a very basic question regarding regression. We have to analyze a residual Plot by hand. We...

• Replies: 1
• Views: 7,825
12-06-2010, 07:54 PM
34. ### Calculate the MSE of s-squared

Consider the multiple regression model y=Xb+u where u~N(0,sigma-squared times identity) where b is a Kx1 vector, X is a non-stochastic full rank...

• Replies: 0
• Views: 3,107
05-01-2011, 06:35 AM
35. ### correlation in multi-level model

In a multi-livel model where level 1 is within-person and level 2 is between-person, can level 1 be a simple correlation between two within-person...

• Replies: 2
• Views: 1,045
10-23-2015, 01:40 PM
36. ### Probit regression with sparse data - Should i standardize data or ??

I am trying to create a probit model (later other models like logit, cloglog and weirder stuff will be tried feel free to make suggestions!), the...

• Replies: 0
• Views: 1,309
12-11-2013, 10:37 AM
37. ### 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: 1,662
12-01-2012, 07:46 PM
38. ### Which test to use (f or t) to test the validity of Okun's Law

Hello, I'm doing a simple linear regression on Okun's law and I need to do a statistical test on the validity of my model. I have two variables;...

• Replies: 0
• Views: 923
03-29-2015, 11:59 PM
39. ### Multiple Linear Regression With Dummy

Hi Friends, i m writing my M.Sc Thesis. During regression i got some problem, my problem is in dummy variable, some variables are in...

• Replies: 1
• Views: 2,143
05-25-2011, 12:09 PM
40. ### proof:variance

Hi, I want to find the variance of coeffiicient b(beta) in a regression without constant term(no intercept).I am not ]with variance algebra. I...

• Replies: 2
• Views: 4,835
04-15-2011, 09:27 AM
41. ### Interpreting mean centered polynomial regression

Hi, I'm running a simple OLS regression and want to examine non-linear effects. Therefore I have included a square term of the independent...

• Replies: 0
• Views: 2,967
02-21-2012, 02:56 PM
42. ### Heckman model

Hi, I'm running a heckman model however some issues have arisen: 1. The log likelihood function is not concave and does not converge after a...

• Replies: 0
• Views: 2,464
03-28-2012, 04:11 PM
43. ### Does the standard error of the regression not need to be corrected by n?

The standard error of an estimator is defined as the square root of the the estimator variance (or mean squared error (MSE) for unbiased estimators)....

• Replies: 2
• Views: 1,111
10-07-2013, 01:49 PM
44. ### My nemesis: multinomial logistic regression

Dear all, For the final article of my PhD-thesis, I need to analyze various categorical results. My goal is to find whether a certain genotype...

• Replies: 1
• Views: 1,518
09-30-2013, 08:30 AM
45. ### 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...

• Replies: 4
• Views: 1,320
10-23-2016, 10:24 PM
46. ### 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...

• Replies: 0
• Views: 140
09-20-2017, 11:41 PM
47. ### Controlling for group differences of no interest - regression, ANCOVA, neiter?

Have been hunting around for a while and thought I ask here: Using SPSS, I have a continuous interval DV (test performace) and one four-level...

• Replies: 1
• Views: 1,772
02-11-2013, 04:09 PM
48. ### 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...

• Replies: 0
• Views: 123
09-20-2017, 09:33 PM
49. ### How to explain the cause of interaction variable?

Hello, I am currently doing statistical analysis for a project, and I am stuck with the following problem. If any of you could help me with this I...

• Replies: 0
• Views: 1,162
10-27-2012, 04:07 PM
50. ### first set of timeseries data to predict second set

I posted this on another site about a month ago but got no responses, so I thought I'd post in this forum. I have timeseries data with n=100 and...

• Replies: 1
• Views: 827
01-30-2013, 08:06 PM
51. ### Multinomial Logit vs Dummies vs Ordinal Logit

Hello everybody, I need help with the following: I would like to conduct a survey, where my dependent variable would be a discrete, nominal...

• Replies: 0
• Views: 4,238
11-18-2010, 03:22 PM
52. ### dummy coding help for cat variables

I have a questionnaire with 28 items - 20 items are Likert attitude questions. In fact there are 5 main variables (constructs?) being measured by 4...

• Replies: 0
• Views: 4,089
12-06-2006, 07:26 PM
53. ### Comparison of linear and power law regression models

I'm quite a newb at statistics, with only one college-level statistics course behind me. I apologize in advance if my terminology and/or...

• Replies: 0
• Views: 3,242
eis
07-20-2011, 01:43 PM
54. ### Logistic Regression - Interpretation issue - Odds Ratios near 1

Hello, I have some several doubts about the logistic regression. I am working with stata in the logisitc regression and my binary input variables...

• Replies: 0
• Views: 919
07-19-2014, 10:55 AM
55. ### Help with First Differencing in STATA

Hello I am a student working with STATA for the first time. I am using panel data for the English Premier League football from 2010 to 2015 and am...

• Replies: 1
• Views: 1,597
09-22-2015, 02:43 AM

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