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# Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

1. ### Regression Analysis Practice

I'm working through some practice on regression analysis and wanted to confirm. My attempt is below. Thanks (1) The correlation between two...

• Replies: 3
• Views: 1,791
05-10-2017, 12:00 PM
2. ### Translate multinomial logit regression parameters into binomial

Hello, I have those parameters from a multinomial logit regression that explains Education (L/M/H) by language (Dominant/Other Europe/Non-European)....

• Replies: 0
• Views: 622
05-10-2017, 06:12 AM
3. ### Regression with summated scale help

Hi all, I am having struggles with computing a (hierarchical) regression analysis for my data, and i have a feeling this is due to my variables. I...

• Replies: 1
• Views: 946
05-07-2017, 07:31 PM
4. ### Understanding pairwise correlation

Maybe it is the current time, but I have some difficulties understanding what my tutor means (and he is gone on vacation so I can't ask). In my...

• Replies: 6
• Views: 1,342
05-03-2017, 02:44 PM
5. ### Does endogeneity affect the R-squared estimated in variance partitioning?

Hi, I have a likely very simple question but I can’t get my head around the answer. I want to estimate which part of the variance in a firm's...

• Replies: 1
• Views: 977
05-03-2017, 11:07 AM
6. ### follow up analysis for regression

I ran 20 services we supply to our customers. I controlled for what seemed obvious things like gender, public support, and severity of disability (we...

• Replies: 8
• Views: 1,375
05-02-2017, 12:04 PM
7. ### Multiple Regression Help !!

A team of researchers believed that parental expectations (PE), emotionality (E) and fear of negative evaluation (FNE) promoted social anxiety (SA)....

• Replies: 2
• Views: 1,010
05-01-2017, 02:37 PM
8. ### Variable change from significant to not significant

I run a multiple regression with 4 main drivers and some control variables. Then I had to run another regression but with six main drivers (of...

• Replies: 8
• Views: 2,063
05-01-2017, 07:55 AM
9. ### question !!

I am helping my niece in explaining regression analysis by studying by myself and finding problems and trying to solve those. one of the problem has...

• Replies: 4
• Views: 1,231
04-30-2017, 07:58 AM
10. ### Polynomial regression interpretation

I am running a logistic regression to find how font manipulation (x1) and people perceptions over how easy it is to process the information (x2)...

• Replies: 0
• Views: 783
04-27-2017, 06:42 AM
11. ### Nested logit?

I am researching about different modes of transportation and i need to get the utility function of each mode. My dependent variable is the modes of...

• Replies: 0
• Views: 1,134
04-26-2017, 11:04 PM
12. ### AIC computation

(1) Compute the Akaike Information Criterion (AIC) value for the linear regression model Y = b0 + b1*X1 + b2*X2 + b3*X3. The regression model was...

• Replies: 0
• Views: 1,018
04-26-2017, 06:25 AM
13. ### How to do a linear multiple regression with multiple correlating independent vars?

Right I am a total newb at stats but I'll try an explain what I'm trying to do. Im trying to find whether China's Foreign Direct Investment...

• Replies: 0
• Views: 538
04-26-2017, 06:10 AM
14. ### Understanding Mixed Effects Regression Models

Can anyone explain to me the difference between mean effect and change when using a mixed effects regression model? I understand mean effect to be...

• Replies: 0
• Views: 663
04-26-2017, 03:34 AM
15. ### Data scattered around y=x

Hello everyone, I am a researcher in engineering. I do have some background on statistics and mathematics in general, but I am not a professional...

• Replies: 14
• Views: 1,603
04-25-2017, 08:15 PM
16. ### Research Proposal - Statistical Analysis?

I am submitting a research proposal, "Does the relationship of exercise and quality of sleep differ with age?" where age is the moderator. It has...

• Replies: 6
• Views: 1,287
04-25-2017, 11:41 AM
17. ### Regression MC

Can someone confirm the answers to the below? And advise which ones are incorrect. Thanks! 1) True/False: Models selected by automated variable...

• Replies: 7
• Views: 1,611
04-25-2017, 09:27 AM
18. ### Geographically Weighted Ordinal Logistik Regression

Hello, I'm studying about Geographically Weighted Ordinal Logistik Regression. but I have trouble getting a book or reference that is related to it....

• Replies: 0
• Views: 739
04-24-2017, 09:12 PM
19. ### Independence of cases (observations)

Dear all, I am currently analyzing the effects several independent variables have on dependant variable (political party's position on...

• Replies: 0
• Views: 897
04-24-2017, 12:36 PM
20. ### how to interpret regressions with spatial autocorrelation?

Hi guys, I am currently doing a GIS and statistical project on whether there is an association between access to green space and deprivation at...

• Replies: 1
• Views: 937
04-23-2017, 10:16 AM
21. ### Regression Analysis Practice

I'm trying to solve these questions from a self-study for actuarial sci. I would appreciate if someone can verify and help explain the following. I...

• Replies: 2
• Views: 1,320
04-23-2017, 09:15 AM
22. ### Test for multivariate analysis using multiple types of independent variables?

Hey all, I'm new to the forum and relatively new to statistics (I took an intro biostats class, that's it). I'm working on my first "real world"...

• Replies: 1
• Views: 744
04-22-2017, 08:44 PM
23. ### Logistic regression : negative coefficients, categorical variables

Hi I am trying to build attrition model and have these variables :- 10 categorical variables with sub levels which created into dummy variables and...

• Replies: 3
• Views: 929
04-22-2017, 09:55 AM
24. ### Zero inflated negative binomial regression interpreting main and interaction effects

I am running a zero inflated negative binomial model (zinb) and want to interpret the main and interaction effects. I have the following: ...

• Replies: 4
• Views: 1,209
04-22-2017, 02:43 AM
25. ### confidence interval

how do you find confidence interval ?

• Replies: 3
• Views: 873
04-20-2017, 07:49 PM
26. ### How to report and interpret non significant single regression? Its urgent plz help

HI, can anyone please help me interpret this picture? we have not learnt this yet. will be grateful! ...

• Replies: 1
• Views: 765
04-20-2017, 10:10 AM
27. ### margin of error

how do you find 95% margin of error ?

• Replies: 1
• Views: 722
04-20-2017, 08:20 AM
28. ### best point estimate and approximate interval estimate

First Question: I need to calculate best point estimate for population of 4500. My understanding is it is (intercept + (variable*4500). Is that...

• Replies: 0
• Views: 630
04-19-2017, 03:19 PM
29. ### Analysis of multiple dependent variables of different sample sizes

Thanks in advance for your help, I'm not a statistician, so I'm struggling to understand the best way to analyse some biological data, and I...

• Replies: 0
• Views: 501
04-19-2017, 09:32 AM
30. ### Binary LR-Forward Stepwise: Should I report the each step entered in the result?

Dear all, I used binary logistic regression in a forward stepwise method to classify my two groups of participants (depressed vs. healthy) using...

• Replies: 0
• Views: 502
04-19-2017, 07:51 AM
31. ### Log regressions

So between these two log regressions: 1) transform y into log but keep X normal 2) transform both the y and x into log When or what would be a...

• Replies: 9
• Views: 1,076
04-19-2017, 02:15 AM
32. ### Fixed effects model urgent help

So I have a dataset which I am trying to use the fixed effects model on. I am confused if I am doing it correctly. I am using panel data to...

• Replies: 0
• Views: 612
04-18-2017, 11:02 PM
33. ### From time 1 to time 2

Hello, I am having a hard time to understand an issue which has been pointed out to me, though with limited further explanation. I am testing an...

• Replies: 0
• Views: 744
04-18-2017, 04:35 PM
34. ### High concentration at one level of multiple regression

I am running a regression where the dependent variable is income gain. In about sixty percent of the cases the intervention fails and there is no...

• Replies: 0
• Views: 662
04-18-2017, 09:53 AM
35. ### Derivation of an equation of Influential Analysis in OLS

Hi to everyone, I'm new to this forum and I'm very pleased for the existence of this forum, since the fact that forums in these times are in decay....

• Replies: 2
• Views: 629
04-17-2017, 10:32 PM
36. ### Newbie Question

Hello, Just wondering if someone could help me. I have a degree in Maths and have done second year Uni Maths stats (but quite a while ago) so...

• Replies: 4
• Views: 897
04-16-2017, 11:31 PM
37. ### A question regarding simultaneous relationship and its implications on predictions

Hey guys, I have a question regarding The simultaneous relationships and the Implications it has on regarding whether the said variable will be...

• Replies: 0
• Views: 576
04-14-2017, 08:22 AM
38. ### Mediated regression (parallel): Opposing effects → how to interpret total effect?

Hi everyone! In my student assistant job I had to to test a model of mediated regression, with various variables mediating the effect of A on B....

• Replies: 0
• Views: 1,359
04-13-2017, 07:46 AM
39. ### Can you include X1/X2 in a model when you've already included X1 and X2?

Can you include X1/X2 in a model when you've already included X1 and X2? For example, I am trying to predict housing prices. X1=square feet and...

• Replies: 4
• Views: 772
04-11-2017, 02:59 PM
40. ### Is it best to match data units to get a logical regressional relationship?

Hi, I'm trying to find an economic relationship between inflation(CPI) and leakages to the economy like Taxes, Savings, and Imports. Well, it...

• Replies: 6
• Views: 756
04-11-2017, 02:20 PM
41. ### Interpret regression dummies

Hi there :yup: So I am having troubles understanding something. I had to run a regression, taking category A as base (highest share) The...

• Replies: 3
• Views: 716
04-10-2017, 10:00 AM
42. ### Regression Analysis

I was working through the following set and needed some clarity on them. I attempted these questions (with my answers below) but need help to see...

• Replies: 1
• Views: 1,433
04-10-2017, 09:58 AM
43. ### Panel data regression estimatetion method

Hi, I am facing some problems with a panel dataset, and I hope somebody could help me. I have a pretty large data set (approx. 5000 firms, 15...

• Replies: 0
• Views: 583
04-09-2017, 05:53 AM
44. ### Model validation in regression

I was wondering, for this question and why. I think its in-sample but curious why. 1) Models need to be validated: a. In-sample b....

• Replies: 4
• Views: 1,137
04-08-2017, 06:58 PM
45. ### Regression with Continuous and Dummy Independent Variables

Dear Colleagues, I am running a multivariate linear regression analysis but got stuck with this situation. I have one dependent variable (which...

• Replies: 13
• Views: 1,765
04-05-2017, 04:07 PM
46. ### Variance of a sum of predictions

Hi, I predict the spatial distribution of a species on a regular grid using a regression model. Species numbers vary with environmental...

• Replies: 8
• Views: 1,762
04-03-2017, 01:44 AM
47. ### Hypothesis interpretation

Dear I'm wondering how I should interpret my hypotheses. The first one is "the relationship between X1 and Y increases as X3 increases" and the...

• Replies: 4
• Views: 1,093
04-01-2017, 03:09 AM
48. ### Elasticity from linear and log-log regression model

I am having problem understanding the calculation of elasticity. if I am using the log-log model eg: log(Y)=constant+β1 log(X1)+β2 log(X2) . So i...

• Replies: 3
• Views: 1,735
04-01-2017, 01:22 AM
49. ### Unique vs. Shared Variance Multiple Regression

Hi all, I am having trouble with interpreting the explained variance of my multiple regression model. I ran a hierarchical model with nine...

• Replies: 1
• Views: 1,657
03-31-2017, 06:41 PM
50. ### different linear regression formulas from same population

hello to all, my question needs some explanation first; i want to test the efficiency of formulas for weight prediction but since medical...

• Replies: 2
• Views: 732
03-30-2017, 01:46 PM
51. ### Multiple linear regression, I seek kind help for a result interpretation :)

So, I've been struggling with a statistics problem for some time now and was wondering if you could shed some light? The regression's Dependent...

• Replies: 2
• Views: 761
03-30-2017, 10:36 AM
52. ### Reverse Engineering a calculator

Hi A colleague in a different department posed an interesting question that I've been giving more thought to lately. Basically, a scientist here...

• Replies: 1
• Views: 923
03-30-2017, 09:41 AM

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