1. Announcement:
05-10-2017
Views:
1,895
Page 72 of 73 First ... 22 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 Last
Threads 4261 to 4320 of 4339

# Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

1. ### 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...

• Replies: 0
• Views: 4,067
05-29-2008, 08:32 AM
2. ### 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...

• Replies: 3
• Views: 3,369
05-27-2008, 08:36 AM
3. ### 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...

• Replies: 4
• Views: 3,059
05-25-2008, 09:07 AM
4. ### 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...

• Replies: 1
• Views: 2,522
05-25-2008, 08:59 AM
5. ### 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...

• Replies: 2
• Views: 3,050
04-24-2008, 01:13 PM
6. ### 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...

• Replies: 9
• Views: 11,542
04-16-2008, 01:27 PM
7. ### 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...

• Replies: 5
• Views: 3,665
04-16-2008, 03:28 AM
8. ### 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...

• Replies: 4
• Views: 4,257
04-07-2008, 01:50 PM
9. ### 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,...

• Replies: 7
• Views: 2,668
03-30-2008, 03:28 PM
10. ### 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...

• Replies: 8
• Views: 2,903
03-29-2008, 01:29 PM
11. ### 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...

• Replies: 1
• Views: 2,155
03-29-2008, 01:24 PM
12. ### 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...

• Replies: 1
• Views: 4,476
03-26-2008, 10:33 AM
13. ### 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...

• Replies: 3
• Views: 8,615
03-25-2008, 03:58 PM
14. ### 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. ...

• Replies: 3
• Views: 6,295
03-20-2008, 03:09 PM
15. ### 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...

• Replies: 3
• Views: 2,489
03-20-2008, 11:38 AM
16. ### Multiple Regression Question

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

• Replies: 0
• Views: 2,744
03-10-2008, 03:06 PM
17. ### 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...

• Replies: 6
• Views: 4,251
03-07-2008, 04:10 PM
18. ### 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...

• Replies: 5
• Views: 3,752
twg
02-20-2008, 09:00 AM
19. ### 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...

• Replies: 3
• Views: 6,497
02-17-2008, 02:13 PM
20. ### 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....

• Replies: 1
• Views: 2,725
02-16-2008, 05:10 PM
21. ### 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...

• Replies: 0
• Views: 2,190
02-09-2008, 12:25 PM
22. ### 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...

• Replies: 0
• Views: 5,974
02-04-2008, 05:48 PM
23. ### 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...

• Replies: 1
• Views: 2,791
02-04-2008, 03:26 PM
24. ### 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...

• Replies: 1
• Views: 2,350
01-21-2008, 03:12 AM
25. ### 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,...

• Replies: 0
• Views: 2,563
01-11-2008, 10:34 PM
26. ### 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...

• Replies: 0
• Views: 4,152
01-11-2008, 08:14 PM
27. ### 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...

• Replies: 2
• Views: 26,084
01-07-2008, 06:58 AM
28. ### What's a logistic regression?

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

• Replies: 4
• Views: 5,758
12-30-2007, 05:45 PM
29. ### 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...

• Replies: 3
• Views: 7,642
12-28-2007, 11:31 AM
30. ### 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)....

• Replies: 1
• Views: 2,964
12-06-2007, 02:14 PM
31. ### 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...

• Replies: 0
• Views: 2,847
11-29-2007, 11:26 AM
32. ### 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...

• Replies: 1
• Views: 2,996
11-26-2007, 04:10 AM
33. ### 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: 5,202
11-05-2007, 09:44 AM
34. ### 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...

• Replies: 0
• Views: 3,456
10-29-2007, 03:40 PM
35. ### 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...

• Replies: 0
• Views: 2,887
10-19-2007, 11:34 AM
36. ### 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...

• Replies: 9
• Views: 3,908
08-29-2007, 03:17 PM
37. ### 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...

• Replies: 2
• Views: 6,756
08-24-2007, 06:49 PM
38. ### generalized least squares

Hello. How can I modify least square linear regression method in order to fit a straight line to data with non gaussian error (such as Levy, Poisson...

• Replies: 6
• Views: 4,136
08-02-2007, 05:53 AM
39. ### Weightings Problem

I have been given an EXCEL model and my assigned task is (only) to fix it for problems that I might call "unintended consequences" of the underlying...

• Replies: 4
• Views: 2,966
07-19-2007, 02:33 PM
40. ### Interactions in regression analysis

Is their anyone who knows how to identify interactions between independent variables in a regression analysis? How does one use the output...

• Replies: 5
• Views: 5,027
06-09-2007, 09:42 PM
41. ### Need my answers checked.. Am I right? Fingers crossed : )

Hey everyone, tomororw morning I am doing a statisctics exam but I had a few questions before I go in there. I have been reviewing the slides from...

• Replies: 0
• Views: 2,223
05-15-2007, 06:00 PM
42. ### Regression Analysis Non linear estimation using squares

Hi, I have used Gompertz model to estimate an equation. I have followed these two sites they explain it all. ...

• Replies: 1
• Views: 3,305
04-30-2007, 09:01 PM

1.A study has been conducted to determine whether the mean spending for recreational activities during the month of August differs for residents of...

• Replies: 0
• Views: 3,712
04-23-2007, 12:20 AM
44. ### Ancova

Hello, I'm trying to compare regression models of the same form between three groups. Each model has two continuous independent variables. I need...

• Replies: 0
• Views: 2,179
04-17-2007, 09:23 AM
45. ### Mutliple Regression with a known coefficient

I'm performing multiple regression on a linear model with several independent variables to generate equations such as: W = aX + bY + cZ X = dW +...

• Replies: 1
• Views: 3,959
02-05-2007, 05:27 PM
46. ### Interaction variable in regression

I'm analyzing data from an experiment in which there are two groups of subjects (patients and controls), and in each group the independent variable...

• Replies: 0
• Views: 2,900
01-31-2007, 02:28 PM
47. ### How to develop a regression expression using factor scores?

Hi, I have four factors for fourteen variables. I want to develop a regression expression for a dependent variable using the correlated variables....

• Replies: 1
• Views: 4,141
01-23-2007, 10:05 PM
48. ### Doing logistic regression using epi-info

Hi there! I'd really appreciate help with this one. I'm finding the prevalence of anemia and its determinants. There are about 23 factors that...

• Replies: 0
• Views: 6,761
12-10-2006, 05:01 AM
49. ### 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: 4,136
12-06-2006, 07:26 PM
50. ### Help with prediction interval problem

Construct the indicated prediction interval for an individual y. The equation of the regression line for the paired data below is = 3x and the...

• Replies: 0
• Views: 7,437
11-13-2006, 02:50 PM
51. ### Need help selecting statistical test

I am working on my dissertation proposal and have run into a snag in the analyses section. I am trying to analyze data drawn from two time-points. ...

• Replies: 2
• Views: 2,534
09-29-2006, 02:27 PM
52. ### Multiple regression help needed

I am struggling with the concept of a forced entry linear multiple data regression. Could someone please explain what they are, why they are used,...

• Replies: 1
• Views: 6,231
09-05-2006, 08:27 PM
53. ### Multiple Regression - Interpreting t-stat

Hi all, If the model fit is satisfactory (ie. R-squared value is sufficiently high), how should the t-stat be interpreted... my reading indicated...

• Replies: 1
• Views: 105,163
08-29-2006, 01:56 PM
54. ### My regression has me confused!

Can someone help me explain this? I did a stepwise multiple regression using the three factors. In Step 3, it shows the Bs in the order I...

• Replies: 2
• Views: 3,620
08-29-2006, 09:22 AM
55. ### Durbin watson

:confused: :confused: i'm in a big big problem? i'm a demonestrator in medical statistics department this week i have to prepare a seminar about...

• Replies: 0
• Views: 3,885
08-27-2006, 03:34 AM
56. ### Linear Regression Equation

Dear friends, I have a set of data as follows: 1....... 58.82±3.23 10....... 62.5±7.90 50....... 87.23±2.33 100....... 110.29±10.33...

• Replies: 5
• Views: 4,006
08-11-2006, 12:24 AM
57. ### regression, pairs of random variables

with observations of an x variable, and a y variable whose expected values lie on a straight line, and whose residual errors are normally...

• Replies: 0
• Views: 3,336
08-06-2006, 12:25 PM
58. ### Plz Help!!!!!!!!!!!!!!!!!!!:(

HEY GUZ CAN U PLZ HELP ME ON THSES @ PROBLEMS< PLZZZ. 1. Please derive solution of parameter estimation for Multiple Linear Regression Model....

• Replies: 0
• Views: 2,655
kal
06-11-2006, 07:41 PM

Page 72 of 73 First ... 22 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 Last

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.

Note: when sorting by date, 'descending order' will show the newest results first.