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Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

  1. A quick regression QUESTION

    Hi i just have a really simple question regarding multiple regression. i have a independant variable called DPR that is the dividend payout ratio...

    Started by pad1w07@soton.ac.uk‎, 09-15-2008 12:06 PM
    • Replies: 2
    • Views: 1,520
    09-16-2008, 03:10 AM Go to last post
  2. Unhappy Unstandardized regression coefficient in Multiple Regression Interaction

    Hi all, I am trying to interpret a significant cross product interaction in a Multiple Regression and I am getting more and more confused. There...

    Started by suliman‎, 09-05-2008 11:57 PM
    • Replies: 1
    • Views: 7,142
    09-06-2008, 01:01 AM Go to last post
  3. Prediction Limits

    Morning everyone. First thread, so take it easy on me. I am using a holt-winters times series to predict future call and transactional volume. ...

    Started by andrew01‎, 09-03-2008 06:48 AM
    • Replies: 0
    • Views: 1,502
    09-03-2008, 06:48 AM Go to last post
  4. Number of IV's in multiple regressions: How many is 'too many'?

    Hello I need to run a number of individual regressions and am trying to decide how to break them down. I was wondering whether there is a limit...

    Started by gemma7‎, 09-02-2008 07:00 AM
    • Replies: 2
    • Views: 2,520
    09-02-2008, 03:51 PM Go to last post
  5. very basis question

    Hi guys, one very basic question: what is the actual difference between simple linear regression and univariate analysis? examples would be...

    Started by nelson‎, 08-31-2008 11:57 AM
    • Replies: 3
    • Views: 1,405
    09-01-2008, 08:25 AM Go to last post
  6. Centering and transforming

    Hello, I'm performing a multiple regression analysis and have a question about transforming variables. I am using two IVs to see if there are...

    Started by statishtics‎, 08-27-2008 03:45 PM
    • Replies: 1
    • Views: 1,525
    08-28-2008, 05:05 AM Go to last post
  7. how to enter certain data, and should i use t test?

    Hi all,:wave: I'm new here and need life saving help with my MEd dissertation! I'm studying moral development (SRMS SCORE) and play opportunities...

    Started by ladyt‎, 08-16-2008 08:10 AM
    • Replies: 2
    • Views: 2,681
    08-18-2008, 04:38 AM Go to last post
  8. Post Check and develop my answers, multiple regression

    This is the question, i was wondering if anyone could check if i did the correct thing, and help me develop my written answers if needed. a)...

    Started by Mosphaitus‎, 08-17-2008 08:22 AM
    • Replies: 4
    • Views: 4,489
    08-17-2008, 12:49 PM Go to last post
  9. Help with Multiple Regression

    Hi all, im struggling with what to do with this multiple regression question, any help tips or pointers would be greatly appreciated! Am i...

    Started by Mosphaitus‎, 08-15-2008 08:35 AM
    • Replies: 6
    • Views: 2,358
    08-16-2008, 12:43 PM Go to last post
  10. Statistics Help (Invoice Question)

    Please help! The manager of the purchasing department of a large banking organization would like to develop a model to predict the amount of time...

    Started by student00‎, 08-12-2008 02:55 PM
    • Replies: 4
    • Views: 3,739
    08-13-2008, 08:05 PM Go to last post
  11. consulting help needed (will pay)

    In about a month, I will be in need of help on some statistical analyses in the following areas: -categorical data analysis -multiple linear...

    Started by jediclampet‎, 02-19-2008 12:58 PM
    • Replies: 1
    • Views: 1,454
    08-12-2008, 02:41 PM Go to last post
  12. Multiple Regression

    Hi, I am doing regression for dependent variable Y and independent variables X1, X2, X3 and X4. Y is the weekly stock price of a company which...

    Started by a_quantum‎, 08-04-2008 03:00 AM
    • Replies: 4
    • Views: 1,594
    08-06-2008, 03:39 AM Go to last post
  13. Meaning of T-Ratio and parameter standard error in HLM analysis

    Hello. I've recently used an Hierachical Linear Modeling (HLM aka mixed modeling) analysis method to look at some data. I'm only just beginning to...

    Started by jonblazn‎, 07-31-2008 11:38 AM
    • Replies: 2
    • Views: 13,821
    08-02-2008, 10:34 PM Go to last post
  14. Question effect size in hierarchical multiple regression (categorical predictor)

    Hello all So glad to have found this useful forum and have already gotten some clarity on other issues related to the hierarchical regression...

    Started by sybil‎, 07-30-2008 01:23 PM
    • Replies: 0
    • Views: 3,231
    07-30-2008, 01:23 PM Go to last post
  15. Unhappy Very basic questions on some terms.

    I apologize if this is a little too basic for you, but I'm an RN taking statistics ovr the summer and my brain just doesn't work like this. My...

    Started by smarge117‎, 07-12-2008 03:50 PM
    • Replies: 6
    • Views: 1,882
    07-13-2008, 07:25 PM Go to last post
  16. Exclamation Coefficients and standard deviations

    Hi, I have seen in a paper that the author states that the coefficient he gets in a regression implies that an increase of one standard deviation...

    Started by bobesp‎, 07-02-2008 03:52 PM
    • Replies: 2
    • Views: 6,171
    07-05-2008, 04:58 PM Go to last post
  17. Regression questions

    I have answered the questions below can someone please check them to make sure i have them right. I have answered the questions but need to have...

    Started by CREATIONS‎, 06-27-2008 01:29 AM
    • Replies: 2
    • Views: 19,569
    06-27-2008, 09:27 AM Go to last post
  18. F-Statistic Question

    I'm sorry for probably asking a foolish question, but my searches have yielded very limited results (as well as my reading) in regards to the...

    Started by dfrisch‎, 05-28-2008 12:30 PM
    • Replies: 6
    • Views: 21,853
    06-23-2008, 03:28 PM Go to last post
  19. statistics problem

    I am stumped on how to go about making the test statistic for this problem. Any help would be appreciated. Thank you. Suppose that you would like...

    Started by rambo67‎, 06-11-2008 09:17 PM
    • Replies: 7
    • Views: 2,333
    06-12-2008, 05:56 PM Go to last post
  20. multiple regression model

    I think 'C' is the answer.. does it look reasonable?

    Started by wasupbaby2‎, 06-12-2008 04:33 PM
    • Replies: 1
    • Views: 1,377
    06-12-2008, 05:19 PM Go to last post
  21. Repeated measures in EEG.

    Hello, I am currently working on the analysis of an EEG data set. We measured the EEG signal for 170 verbs and 24 subjects in a picture naming...

    Started by SomeLinguist‎, 06-12-2008 07:07 AM
    • Replies: 0
    • Views: 1,901
    06-12-2008, 07:07 AM Go to last post
  22. Multiple Regression Equation.

    Can someone please tell me if this if correct or not. I'm such an idiot. if i have coefficients of : intercept = -17.514 Food =-0.351...

    Started by el1‎, 05-29-2008 07:57 PM
    • Replies: 0
    • Views: 1,231
    05-29-2008, 07:57 PM Go to last post
  23. Increasing variance in linear regression

    Hi, I have a response and a predictor variable, weight and height, to which I've fitted a linear regression. The relationship appears to be...

    Started by Statstastic‎, 05-28-2008 10:26 AM
    • Replies: 6
    • Views: 9,193
    05-29-2008, 09:33 AM Go to last post
  24. Regression analysis - normal distribution and linearity

    I am using a scale for a paper. The scores are based on 7 questions with Likert-type responses. I want to use it as a dependent variable in a...

    Started by Staticia‎, 05-29-2008 08:32 AM
    • Replies: 0
    • Views: 2,192
    05-29-2008, 08:32 AM Go to last post
  25. multiple comparisons with multiple regressions?

    Hi there, I'm hoping that someone can answer my query or point me in the direction of a reliable source to find out more. My question is - Is the...

    Started by meema‎, 05-26-2008 09:23 AM
    • Replies: 3
    • Views: 2,297
    05-27-2008, 08:36 AM Go to last post
  26. Damage Assessment

    I apologize for this question being exceedingly vague, but I'm not sure of the correct terminology. After running a regression analysis, I have...

    Started by DCohen‎, 05-23-2008 03:17 PM
    • Replies: 4
    • Views: 1,513
    05-25-2008, 09:07 AM Go to last post
  27. Regression Analysis

    I am looking for a Introductory Regression Analysis book. The extent of my education is Elementary Stats in college, is there more knowledge, of...

    Started by frailjar7‎, 05-25-2008 07:33 AM
    • Replies: 1
    • Views: 1,596
    05-25-2008, 08:59 AM Go to last post
  28. Doubt regarding Multiple Regression

    Hi, I have some doubt in Multiple regression. I have Y as the dependent variable (mutual fund returns) I have many independent variables...

    Started by akshay_ajmani‎, 04-20-2008 03:40 PM
    • Replies: 2
    • Views: 1,576
    04-24-2008, 01:13 PM Go to last post
  29. Dissertation help with Likert scale

    Hello, I'm having some problems with the stats for my dissertation. My dissertation is about the effect of the physical surroundings of a...

    Started by Bunecarera‎, 04-15-2008 05:28 AM
    • Replies: 9
    • Views: 9,480
    04-16-2008, 01:27 PM Go to last post
  30. Urgent: Linear Regression - Survey Design - Help needed

    Hi everyone, For my master thesis, I am trying to prepare a survey on key success factors for virtual worlds. I want to do a linear regression...

    Started by Lisaly2345‎, 04-10-2008 10:28 AM
    • Replies: 5
    • Views: 2,562
    04-16-2008, 03:28 AM Go to last post
  31. Question Can "infinite" values be used in regression?

    Hello, I am analyzing a series of plots along a recovery gradient, using "time since disturbance" as a continuous variable. I want to see how...

    Started by GiganD‎, 04-03-2008 03:21 PM
    • Replies: 4
    • Views: 2,256
    04-07-2008, 01:50 PM Go to last post
  32. Help with analysis. PLEASE.

    Hi all:wave: , please can any one give an indication of which stats test to use. So far I've looked at doing a bivariate and found significant data,...

    Started by georgemac‎, 03-29-2008 07:55 PM
    • Replies: 7
    • Views: 1,938
    03-30-2008, 03:28 PM Go to last post
  33. Spearmans test...?!

    Im conducting a project and it is based on radiographs, basically i look at a radiograph and decide how difficult it is likely to be i have done this...

    Started by Rara‎, 03-29-2008 08:59 AM
    • Replies: 8
    • Views: 1,857
    03-29-2008, 01:29 PM Go to last post
  34. A question about bimodality.

    First question - if my Y variable has a bimodal distribution, is it at all possible to run a regression on this variable? Second - if my Y...

    Started by aquietplace‎, 03-29-2008 01:22 PM
    • Replies: 1
    • Views: 1,392
    03-29-2008, 01:24 PM Go to last post
  35. Help Stats :( Interactions and Homoscedasticity

    IF anyone could help with this right now would appreciate it so much - have tried looking it up anywhere and finding so many different...

    Started by janeduluth‎, 03-22-2008 02:39 PM
    • Replies: 1
    • Views: 2,792
    03-26-2008, 10:33 AM Go to last post
  36. Partial R squares

    Is there a way to generate partial r-squares (automatically) in multiple regression? Assume a Model Y=X1 X2 X3. GLM produces estimates of R square...

    Started by evm‎, 03-25-2008 12:06 PM
    • Replies: 3
    • Views: 6,230
    03-25-2008, 03:58 PM Go to last post
  37. Dummy Variables and Multiple Regression

    Hi, if someone could make this clear for me, would be much appreciated.. Is it possible to create a dummy variable for more than one outcome. ...

    Started by janeduluth‎, 03-20-2008 11:50 AM
    • Replies: 3
    • Views: 4,364
    03-20-2008, 03:09 PM Go to last post
  38. Another question re: correlation and regression

    I seem to be getting confused between correlation and regression a bit... I'm trying to identify the relationship between a series of X variables...

    Started by arikel‎, 03-19-2008 01:25 PM
    • Replies: 3
    • Views: 1,585
    03-20-2008, 11:38 AM Go to last post
  39. Multiple Regression Question

    Hello, I am examining the association bertween two independent variables and a dependent variable using multiple regression. My dependent variable...

    Started by psychologygirl‎, 03-10-2008 03:06 PM
    • Replies: 0
    • Views: 1,655
    03-10-2008, 03:06 PM Go to last post
  40. Regression approach to ANOVA

    I am trying to fit regression for some categorical variables. I have two treatment A(3 levels) and B (2 levels) and their interaction. The output...

    Started by lovedieer‎, 03-03-2008 10:17 PM
    • Replies: 6
    • Views: 2,782
    03-07-2008, 03:10 PM Go to last post
  41. Multiple logistic regression models

    Hi Am I correct in saying that if my results from multiple logistic regression show that the full model does not differ significantly from the...

    Started by WTwine‎, 01-23-2008 06:58 AM
    • Replies: 5
    • Views: 2,595
    02-20-2008, 08:00 AM Go to last post
  42. Do I need to treat all variables in the same way when I transform values?

    Hi, I want to carry out a Pearsons correlation to look relationships between methane flux from soil under different plantation treatments (i.e...

    Started by froglett‎, 02-16-2008 07:24 AM
    • Replies: 3
    • Views: 4,781
    02-17-2008, 01:13 PM Go to last post
  43. Chi vs R for goodness of fit

    As an undergraduate, I had a physics professor who strongly preferred chi^2 as a measure of a good curve-fit as opposed to correlation coefficient r....

    Started by MALDATA‎, 02-12-2008 12:00 PM
    • Replies: 1
    • Views: 1,591
    02-16-2008, 04:10 PM Go to last post
  44. means versus total scores

    Hi I have a question about using means versus total scores. Is it better to use one or the other when conducting analyses like multiple regression...

    Started by psychologygirl‎, 02-09-2008 11:25 AM
    • Replies: 0
    • Views: 1,250
    02-09-2008, 11:25 AM Go to last post
  45. Multiple Regression Analysis of a time series

    Hello everyone! I'm trying to use multiple regression analysis of a time series, but I've run into a problem interpreting the data. First, I've...

    Started by minchazo‎, 02-04-2008 04:48 PM
    • Replies: 0
    • Views: 3,612
    02-04-2008, 04:48 PM Go to last post
  46. Multiple regression analysis

    Hi I was wondering if anyone can help me regarding multiple regression analysis. I have used the Stats program Minitab to analyse a large amount of...

    Started by Deanne‎, 02-02-2008 11:13 PM
    • Replies: 1
    • Views: 1,546
    02-04-2008, 02:26 PM Go to last post
  47. learning logistic regression

    If you're really good at multiple linear/non-linear regression analysis, would it be hard to learn how to do a logistic regression? Is that a lot...

    Started by Analytics‎, 01-20-2008 09:50 PM
    • Replies: 1
    • Views: 1,400
    01-21-2008, 02:12 AM Go to last post
  48. what I dont get about statistical techniques!

    I bought and read a book about multiple regression analysis (least squares) and it contains tests for each assumptions and not just linear models,...

    Started by Analytics‎, 01-11-2008 09:34 PM
    • Replies: 0
    • Views: 1,466
    01-11-2008, 09:34 PM Go to last post
  49. statistical analysis of global warming/fossil fuels

    Hello, I have to write a paper for a class (environmental management). I've been thinking quite a bit about global warming/weather trends and how...

    Started by Analytics‎, 01-11-2008 07:14 PM
    • Replies: 0
    • Views: 2,102
    01-11-2008, 07:14 PM Go to last post
  50. Mallow's Cp Statistic as criterion for regression

    I am building a multiple regression model using stepwise procedures and using the minimum Mallow's CP statistic as criterion for adding variables to...

    Started by johng16‎, 09-20-2006 08:14 PM
    • Replies: 2
    • Views: 20,411
    01-07-2008, 05:58 AM Go to last post
  51. What's a logistic regression?

    Hello, in college we learned multiple regression techniques (different models: linear, log-lin, lin-log, exponential, ...) - including all the...

    Started by Analytics‎, 12-24-2007 04:34 PM
    • Replies: 4
    • Views: 3,518
    12-30-2007, 04:45 PM Go to last post
  52. Red face Combining Regressions

    Hi, I have several different regressions for various sites within an area estimating Y from X. I would like to combine all these sites in to...

    Started by danboyk‎, 12-19-2007 09:01 AM
    • Replies: 3
    • Views: 5,119
    12-28-2007, 10:31 AM Go to last post
  53. Need your help with AIC and model selection

    Hello. If someone could help me with this problem, I would really appreciate it!! I am working on multiple Mantel tests (like multiple regression)....

    Started by fsms‎, 12-05-2007 02:56 AM
    • Replies: 1
    • Views: 1,923
    12-06-2007, 01:14 PM Go to last post
  54. Cluster Analysis

    Hi all, I have a small sample of 75 participants. I'm conducting an exploratory study looking at psychological distress and gender role...

    Started by cmuhooligan‎, 11-29-2007 10:26 AM
    • Replies: 0
    • Views: 1,550
    11-29-2007, 10:26 AM Go to last post
  55. Exclamation Regression & Predictions

    I have a problem to work out involving forecasting/predicting: Given multiple data sets (variables), I need to evaluate which set is the best...

    Started by corrinebean‎, 11-25-2007 06:15 PM
    • Replies: 1
    • Views: 1,558
    11-26-2007, 03:10 AM Go to last post
  56. Question 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...

    Started by Laurence‎, 11-05-2007 08:44 AM
    • Replies: 0
    • Views: 3,163
    11-05-2007, 08:44 AM Go to last post
  57. Regression and metric space

    Hi, I have two independent variables X and Y and one dependent variable Z. X alone explains 45 percent of the variation in Z (Rsquare) and Y...

    Started by senbet‎, 10-29-2007 03:40 PM
    • Replies: 0
    • Views: 1,424
    10-29-2007, 03:40 PM Go to last post
  58. More than 1 squared term in a regression equation?

    If I have a multiple regression model in which there are more than 1 or 2 terms that are non-linear with the dependent variable Y, then what can I do...

    Started by enman‎, 10-19-2007 11:34 AM
    • Replies: 0
    • Views: 1,840
    10-19-2007, 11:34 AM Go to last post
  59. Significance Issue in Regression

    Hi everyone! I have a statistical question that I hope someone can answer. I am doing a research about relationship between satisfaction and...

    Started by Mikica‎, 08-26-2007 07:14 AM
    • Replies: 9
    • Views: 2,482
    08-29-2007, 03:17 PM Go to last post
  60. Multicollinearity

    Hello at everyone, I'm new at the site, and I'd appreciate your suggestions. I have a multiple -through the origin- regression model. Working with...

    Started by hernan‎, 08-24-2007 06:13 PM
    • Replies: 2
    • Views: 4,592
    08-24-2007, 06:49 PM Go to last post

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