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Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

  1. 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)....

    Started by Demographer‎, 05-10-2017 06:12 AM
    • Replies: 0
    • Views: 618
    05-10-2017, 06:12 AM Go to last post
  2. Regression projects on Minitab (Fit models using transformations)

    I'm using Minitab to do these projects. I start by making a multiple linear regression model and try to transform it using the calculator. I keep...

    Started by biologist21‎, 05-07-2017 01:57 PM
    • Replies: 1
    • Views: 711
    05-08-2017, 06:37 AM Go to last post
  3. Unhappy 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...

    Started by janne1994s‎, 05-07-2017 01:52 PM
    dependent variable, hierarchical regression, multiple regression, regression
    • Replies: 1
    • Views: 944
    05-07-2017, 07:31 PM Go to last post
  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...

    Started by Jazz3‎, 05-03-2017 09:56 AM
    • Replies: 6
    • Views: 1,339
    05-03-2017, 02:44 PM Go to last post
  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...

    Started by Peter Schmid‎, 05-02-2017 06:01 PM
    endogeneity, r-squared, variance partitioning
    • Replies: 1
    • Views: 974
    05-03-2017, 11:07 AM Go to last post
  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...

    Started by noetsi‎, 05-01-2017 02:34 PM
    • Replies: 8
    • Views: 1,373
    05-02-2017, 12:04 PM Go to last post
  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)....

    Started by shevy‎, 04-29-2017 11:23 AM
    • Replies: 2
    • Views: 1,008
    05-01-2017, 02:37 PM Go to last post
  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...

    Started by Jazz3‎, 04-09-2017 09:08 AM
    • Replies: 8
    • Views: 2,059
    05-01-2017, 07:55 AM Go to last post
  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...

    Started by rka_stat‎, 04-29-2017 06:33 AM
    • Replies: 4
    • Views: 1,227
    04-30-2017, 07:58 AM Go to last post
  10. Linear Regression: Significance levels/Finding equation of fitted regression lines

    I did an exam recently and I am looking for a solution to a question which no matter where I look, I can't find out how to do it. It doesn't help I'm...

    Started by prephil‎, 04-29-2017 05:04 PM
    • Replies: 0
    • Views: 652
    04-29-2017, 05:04 PM Go to last post
  11. Correlating two pitch contour models

    I am determining tonal ability (the ability to express tones in a tone language, a language which requires a change in pitch to differentiate meaning...

    Started by jkao1‎, 04-28-2017 03:21 PM
    • Replies: 0
    • Views: 871
    04-28-2017, 03:21 PM Go to last post
  12. Exclamation 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)...

    Started by maria15‎, 04-27-2017 06:42 AM
    interpretation, moderator, polynomial regression
    • Replies: 0
    • Views: 780
    04-27-2017, 06:42 AM Go to last post
  13. 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...

    Started by Paul_research‎, 04-26-2017 11:04 PM
    • Replies: 0
    • Views: 1,129
    04-26-2017, 11:04 PM Go to last post
  14. 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...

    Started by shane414‎, 04-26-2017 06:25 AM
    regresiion, regression analysis
    • Replies: 0
    • Views: 1,015
    04-26-2017, 06:25 AM Go to last post
  15. 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...

    Started by zakqux93‎, 04-26-2017 06:10 AM
    • Replies: 0
    • Views: 534
    04-26-2017, 06:10 AM Go to last post
  16. Normality

    I did a test of normality in STATA on my dependent variable. The rest was significant thus violations of normality. After taking the log, there is...

    Started by Jazz3‎, 04-21-2017 11:37 AM
    2 Pages
    1 2
    • Replies: 18
    • Views: 1,855
    04-26-2017, 05:39 AM Go to last post
  17. 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...

    Started by Brook99‎, 04-26-2017 03:34 AM
    • Replies: 0
    • Views: 660
    04-26-2017, 03:34 AM Go to last post
  18. 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...

    Started by math4engz‎, 04-23-2017 08:28 AM
    r squared, regression, statistics
    • Replies: 14
    • Views: 1,600
    04-25-2017, 08:15 PM Go to last post
  19. Exclamation 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...

    Started by mackk2‎, 04-25-2017 08:00 AM
    • Replies: 6
    • Views: 1,282
    04-25-2017, 11:41 AM Go to last post
  20. 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...

    Started by shane414‎, 04-23-2017 08:18 PM
    • Replies: 7
    • Views: 1,607
    04-25-2017, 09:27 AM Go to last post
  21. 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....

    Started by Pamona D‎, 04-24-2017 09:12 PM
    ordinal logistic reg, regression analysis
    • Replies: 0
    • Views: 737
    04-24-2017, 09:12 PM Go to last post
  22. Question Independence of cases (observations)

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

    Started by tomas.bek‎, 04-24-2017 12:36 PM
    durbin watson, independence, observations, ols, regression
    • Replies: 0
    • Views: 894
    04-24-2017, 12:36 PM Go to last post
  23. 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...

    Started by mariabenedict97‎, 04-23-2017 08:11 AM
    • Replies: 1
    • Views: 934
    04-23-2017, 10:16 AM Go to last post
  24. 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...

    Started by shane414‎, 04-23-2017 03:22 AM
    • Replies: 2
    • Views: 1,315
    04-23-2017, 09:15 AM Go to last post
  25. 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"...

    Started by immaxf‎, 04-22-2017 06:21 PM
    • Replies: 1
    • Views: 741
    04-22-2017, 08:44 PM Go to last post
  26. 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...

    Started by Boo‎, 04-22-2017 06:05 AM
    coefficient, logistic regression
    • Replies: 3
    • Views: 927
    04-22-2017, 09:55 AM Go to last post
  27. 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: ...

    Started by random_android‎, 04-21-2017 03:51 PM
    interaction effects, main effect, negative binomial model, stata 14, zero inflated
    • Replies: 4
    • Views: 1,205
    04-22-2017, 02:43 AM Go to last post
  28. confidence interval

    how do you find confidence interval ?

    Started by rka_stat‎, 04-19-2017 03:55 PM
    • Replies: 3
    • Views: 870
    04-20-2017, 07:49 PM Go to last post
  29. 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! ...

    Started by Amna_22‎, 04-20-2017 08:35 AM
    • Replies: 1
    • Views: 762
    04-20-2017, 10:10 AM Go to last post
  30. margin of error

    how do you find 95% margin of error ?

    Started by rka_stat‎, 04-19-2017 03:56 PM
    • Replies: 1
    • Views: 718
    04-20-2017, 08:20 AM Go to last post
  31. 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...

    Started by rka_stat‎, 04-19-2017 03:19 PM
    • Replies: 0
    • Views: 628
    04-19-2017, 03:19 PM Go to last post
  32. Question 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...

    Started by StatLess‎, 04-19-2017 09:32 AM
    • Replies: 0
    • Views: 499
    04-19-2017, 09:32 AM Go to last post
  33. 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...

    Started by Ping Koo‎, 04-19-2017 07:51 AM
    • Replies: 0
    • Views: 499
    04-19-2017, 07:51 AM Go to last post
  34. 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...

    Started by Jazz3‎, 03-31-2017 04:05 AM
    • Replies: 9
    • Views: 1,072
    04-19-2017, 02:15 AM Go to last post
  35. 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...

    Started by jdev10‎, 04-18-2017 11:02 PM
    • Replies: 0
    • Views: 609
    04-18-2017, 11:02 PM Go to last post
  36. 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...

    Started by Ted Brasil‎, 04-18-2017 04:35 PM
    • Replies: 0
    • Views: 740
    04-18-2017, 04:35 PM Go to last post
  37. 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...

    Started by noetsi‎, 04-18-2017 09:53 AM
    • Replies: 0
    • Views: 660
    04-18-2017, 09:53 AM Go to last post
  38. 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....

    Started by alexjmackh_94‎, 04-16-2017 07:05 PM
    econometrics, influential outliers, ols
    • Replies: 2
    • Views: 626
    04-17-2017, 10:32 PM Go to last post
  39. 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...

    Started by PinkyP2‎, 04-13-2017 11:44 PM
    • Replies: 4
    • Views: 895
    04-16-2017, 11:31 PM Go to last post
  40. interpreting p-value in a table

    Hello. I am reading an article of how herbal tea affects INR values (the hypthesis is - that those who drink herbal tea have INR values outside the...

    Started by laradf‎, 04-15-2017 04:56 PM
    • Replies: 1
    • Views: 839
    04-15-2017, 10:27 PM Go to last post
  41. 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...

    Started by orenz10‎, 04-14-2017 08:22 AM
    • Replies: 0
    • Views: 573
    04-14-2017, 08:22 AM Go to last post
  42. Question 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....

    Started by Jona‎, 04-13-2017 07:46 AM
    mediated regression, mediation, process tool, spss
    • Replies: 0
    • Views: 1,357
    04-13-2017, 07:46 AM Go to last post
  43. 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...

    Started by smw10c‎, 04-08-2017 12:40 PM
    • Replies: 4
    • Views: 769
    04-11-2017, 02:59 PM Go to last post
  44. 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...

    Started by Zenny‎, 04-10-2017 09:22 PM
    inflation
    • Replies: 6
    • Views: 754
    04-11-2017, 02:20 PM Go to last post
  45. 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...

    Started by Jazz3‎, 04-09-2017 08:49 AM
    • Replies: 3
    • Views: 710
    04-10-2017, 10:00 AM Go to last post
  46. 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...

    Started by msoe414‎, 04-08-2017 03:22 AM
    regression analysis, statistics
    • Replies: 1
    • Views: 1,429
    04-10-2017, 09:58 AM Go to last post
  47. Quadratic formula doesn't add up (SPSS)

    Hello, SPSS will draw a quadratic fit line on a scatterplot if requested and provide the formula (see attached). I have typed out the quadratic...

    Started by HanEyeAm‎, 04-07-2017 09:28 PM
    • Replies: 9
    • Views: 1,305
    04-09-2017, 07:46 PM Go to last post
  48. 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...

    Started by RickL‎, 04-09-2017 05:53 AM
    fixed effects, panel data, panel regression, pooled ols, random effets
    • Replies: 0
    • Views: 580
    04-09-2017, 05:53 AM Go to last post
  49. 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....

    Started by msoe414‎, 04-07-2017 03:49 PM
    • Replies: 4
    • Views: 1,134
    04-08-2017, 06:58 PM Go to last post
  50. backtranformation of log transformed data

    Hi forum, I've a simple question that has probably a difficult answer. In a lineair regression of the form: log(y) ~ x resulting in an...

    Started by koen‎, 07-25-2006 09:39 AM
    • Replies: 2
    • Views: 4,904
    04-08-2017, 02:58 PM Go to last post
  51. 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...

    Started by tomas.bek‎, 04-03-2017 08:56 AM
    continuous variables, dummy variables, multivariate regression, ols, regression
    • Replies: 13
    • Views: 1,763
    04-05-2017, 04:07 PM Go to last post
  52. 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...

    Started by mmercker‎, 03-31-2017 08:03 AM
    population size, prediction interval, spatial analysis
    • Replies: 8
    • Views: 1,759
    04-03-2017, 01:44 AM Go to last post
  53. 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...

    Started by Hypnoz‎, 03-31-2017 02:03 PM
    • Replies: 4
    • Views: 1,090
    04-01-2017, 03:09 AM Go to last post
  54. 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...

    Started by korzuen‎, 03-31-2017 01:11 PM
    elasticity, log, regression
    • Replies: 3
    • Views: 1,729
    04-01-2017, 01:22 AM Go to last post
  55. 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...

    Started by Aegislash‎, 03-31-2017 04:43 AM
    • Replies: 1
    • Views: 1,650
    03-31-2017, 06:41 PM Go to last post
  56. How to handle a skewed dependent variable?

    Hello, i had another thread, where the scatterplot of the dependent variable and independent variable looked like the pic ('scatterplot2'). Now...

    Started by Franziska13‎, 03-30-2017 06:13 AM
    • Replies: 3
    • Views: 1,200
    03-31-2017, 07:42 AM Go to last post
  57. 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...

    Started by srht ky‎, 03-29-2017 06:32 AM
    • Replies: 2
    • Views: 730
    03-30-2017, 01:46 PM Go to last post
  58. 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...

    Started by you_are_awsome‎, 03-30-2017 10:27 AM
    • Replies: 2
    • Views: 758
    03-30-2017, 10:36 AM Go to last post
  59. 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...

    Started by jamesmartinn‎, 03-30-2017 07:59 AM
    • Replies: 1
    • Views: 920
    03-30-2017, 09:41 AM Go to last post
  60. External validation of a log reg model using Nagelkerkes R2 w/ fixed parameters

    I have a dataset containing a point score (an integer between 0-41) and mortality (0/1) for a sample. I have performed a logistic regression...

    Started by ag90‎, 03-30-2017 08:05 AM
    external validation, logistic regression, nagelkerke, rsquared
    • Replies: 0
    • Views: 426
    03-30-2017, 08:05 AM Go to last post

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