1. Announcement:
05-10-2017
Views:
1,878
Page 36 of 73 First ... 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 ... Last
Threads 2101 to 2160 of 4336

# Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

1. ### t statistic or p value

When reporting results of a regression for a paper, should the t statistics or p value be in parenthesis below the coefficients. I've seen some...

• Replies: 3
• Views: 2,432
07-18-2013, 08:10 PM
2. ### question about path analysis

Hi I want to run a path analysis (not SEM ) I want to see whether two variables (A & B) predict another one (C). I also want to check whether C...

• Replies: 2
• Views: 1,294
07-18-2013, 03:53 PM
3. ### Standardized regression coefficients - why?

Hello everybody :wave: When doing a multiple linear regression analysis, you would often like to know which predictor variable has the most...

• Replies: 5
• Views: 2,133
07-18-2013, 08:57 AM
4. ### simple instructions for beta regression needed

Hi there I need to do a beta regression because my DV is a proportion. While I have read some papers online about it, I really do need an idiots'...

• Replies: 0
• Views: 1,450
07-17-2013, 08:53 AM
5. ### pooled OLS time invariant variables

Are the coefficients of time invariant variables consistent and unbiased when I run a pooled OLS regression with panel data? Thanks

• Replies: 0
• Views: 1,620
07-16-2013, 08:08 PM
6. ### testing for a statistically significant difference between transformed coefficients.

Hi All, I know it is straightforward enough to test for a statistically significant difference between two coefficients... but I have kind of a...

• Replies: 0
• Views: 1,165
07-16-2013, 07:03 PM
7. ### Collinearity = interaction ?

Hello everybody I recently learned about interaction in linear regression and I´m having a hard time grasping the concept. As i understand it...

• Replies: 0
• Views: 1,663
07-16-2013, 02:53 AM
8. ### Linear regression with non-normal data?

It is my understanding that for linear regression both data sets must be normally distributed. One of my two sets of data (x) is normally...

• Replies: 43
• Views: 78,807
07-15-2013, 10:15 PM
9. ### Parameters Meaning

What does parameters a and b represent in the equation y = A + B ln(x) ?

• Replies: 6
• Views: 2,526
07-15-2013, 05:43 PM
10. ### Analysis of promotional data by department

Hi all, I have recently started an internship with a major UK retailer. My project is to come up with a model (and analysis) for promotions that...

• Replies: 6
• Views: 1,198
07-15-2013, 08:38 AM
11. ### Regression Model is Significant but...none of the independent variables are?

I have a regression Model that is significant but none of the independent variables are? What does this mean? How can i discuss the results? ...

• Replies: 9
• Views: 1,911
07-14-2013, 06:18 PM
12. ### Slope over time

Hello, I wanting to compare customer counts by different stores and thought that slope would be the best way to do this. So, I used linear...

• Replies: 0
• Views: 1,078
07-13-2013, 01:38 PM
13. ### From B's to adjusted risk ratios - What am I missing?

Hello everyone! Usually confounder adjusted risk ratios are reported in non-experimetnal studies, but I don't know how to calculate them. The...

• Replies: 2
• Views: 1,212
07-11-2013, 03:54 AM
14. ### Estimating Covariate Effects on Likert-Scale Response Data

I am working on a problem where we elicit medical residents perceptions regarding the importance of specific core medical competencies...

• Replies: 1
• Views: 1,922
07-10-2013, 10:05 AM
15. ### Significant difference between regression models based on the sum of squared errors

I'm trying to fit a simple linear regression to test the correlation between 2 variables: X and Y. The X variable is dependent on another...

• Replies: 3
• Views: 1,679
07-09-2013, 09:31 AM
16. ### simplified version of earlier post about contrasting output in binary reg &outliers

I have conducted binary regression analysis for a single variable dummy coded into 15 dummy variables. My sample size was 512. My dissertation...

• Replies: 0
• Views: 960
07-08-2013, 01:35 AM
17. ### Which kind of Regression should i use for this case?

Hello everyone, I'm new here and i have just begann with statistical research. I'd be very thankful if anyone could help me with my situation. I...

• Replies: 12
• Views: 2,239
07-07-2013, 04:35 PM
18. ### need help on contrasting outputs for blr enter vs stepwise and outliers

Hi Again! I am fairly new to stats and have come a long way. I have asked a few questions and this forum has been great for input, thanks! I have...

• Replies: 0
• Views: 1,358
07-07-2013, 03:17 PM

Hi. I need help. I'm writing a proposal and am not a statistician and am having trouble translating the notes from my professor into an equation. ...

• Replies: 0
• Views: 1,302
07-07-2013, 07:14 AM
20. ### Plotting results of regression with interaction terms

This is tangentially R-related, but mostly about presenting results of a regression including interaction terms. My ultimate objective is to produce...

• Replies: 0
• Views: 1,623
kjo
07-06-2013, 04:17 PM
21. ### How do you handle this type of predictor variable?

I run into data (in articles and at work) which has variables that mesure some phenomenon on say a 10 to 50 point scale. That is they have between 10...

• Replies: 2
• Views: 1,761
07-05-2013, 12:27 PM
22. ### Mediation analysis with the DV following a gamma distribution.

Hi there, I am in the early stages of data analysis and could really use some advise. Basically, I am testing whether music tempo influences...

• Replies: 5
• Views: 1,235
07-05-2013, 12:01 AM
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: 1,281
07-03-2013, 03:03 PM
24. ### Diagnostics for logistic regression

Anyone have any suggestions, or better links, on diagnostics for logistic regression. I know many of the assumptions (and thus tests such as...

• Replies: 2
• Views: 1,674
07-03-2013, 01:03 PM
25. ### Non-linear modelling with several variables including a categorical variable

Hello everyone, I am trying to model some data regarding a predator prey interaction experiment (n=26) in R. Predation rate is my response...

• Replies: 0
• Views: 1,542
07-03-2013, 03:11 AM
26. ### regression analysis with Kendall tau coefficients

Hi! I wish to run regression analysis in SPSS. My data is not completely linear and not normally distributed so I've used Kendall tau coefficient. I...

• Replies: 0
• Views: 1,264
07-03-2013, 02:17 AM
27. ### Mispecification

In theory, or as I understand theory,:p if you leave out a covariate that has a signficant effect on the DV and one IV still in the model you will...

• Replies: 6
• Views: 1,567
07-02-2013, 01:55 PM
28. ### normality assumption in regression: THE FINAL ANSWER!!!

ok, maybe it's not *the* final answer, but here's a theory of where this may be coming from. ever since noetsi started asking this question about...

• Replies: 11
• Views: 3,300
07-02-2013, 09:48 AM
29. ### [SOLVED] Robust regression

I am new to this method. SAS uses one of two alternates to generate the weights that are central to addressing outliers in robust regression. One is...

• Replies: 5
• Views: 1,929
07-01-2013, 05:17 PM
30. ### binary logistic regression using forward lr method in SPSS 21

Hello! I am brand new to all of this, including this forum - and statistics don't come naturally to me. I have just finished chapter 4 of a...

• Replies: 0
• Views: 3,750
06-29-2013, 10:20 PM
31. ### Controling variable in regression analysis for the moderators

Hi I am doing hierarchical regression to test the moderators effect between IV (violation perception) and DV1 (emotion) and DV2(behaviour). ...

• Replies: 0
• Views: 1,461
06-28-2013, 01:11 PM
32. ### Interaction, moderaton and regression

I am facing a problem with my analysis. I have two dichotomous moderators between two continuous IV (violation perception) and DV (anger) variables....

• Replies: 4
• Views: 1,474
06-28-2013, 12:34 PM
33. ### df fot BETA t-test in ANCOVA

Hi All, Perhaps this would be a silly question but, in ANCOV, what is the DF for t-test value for a covariate BETA coefficient calculated...

• Replies: 0
• Views: 1,613
06-28-2013, 04:36 AM
34. ### log binomial regression

The author of an article I am reading suggests that in using this method the OR would reflect relative risk (which normally they don't although they...

• Replies: 2
• Views: 2,826
06-27-2013, 02:11 PM
35. ### Several transformation in multiple linear regression to achieve normality

I am an undergraduate student doing a dissertation on forecasting using multiple linear regression. I am creating a multiple regression equation in...

• Replies: 9
• Views: 1,514
06-27-2013, 11:42 AM
36. ### Correcting for omitted variable bias without including problem variables?

Hi All, I asked something similar earlier but I don't think I was very clear (so I will try again). I want to run a regression, let's say it is...

• Replies: 3
• Views: 4,178
06-26-2013, 02:55 PM
37. ### Interpretation of a regression with only one independent variable: a 2x2 interaction.

Hello all, This is my first post. I am a newly-begun career-researcher and while I have come here now for help, I intend to continue to use this...

• Replies: 3
• Views: 1,989
06-24-2013, 10:10 AM
38. ### near singular matrix error (dummy variable trap)

Hi, Im running a regression in eviews and have 11 dummy variables for 12 different industries. As i already dropped one i do not understand why i...

• Replies: 3
• Views: 24,869
06-23-2013, 01:54 AM
39. ### Use of count data in regressions

Does anyone know if count data can be used as x variables in regression without any issues? Assuming, I am trying to find the effect of aid on growth...

• Replies: 1
• Views: 2,062
06-22-2013, 06:44 PM
40. ### VAR EViews: Heteroskedasticity and non-normal distribution of reiduals - White Errors

Hi, I am estimating the causality between the oil price and gdp in EViews. I am using quarterly and real data. I estimated the data as log and in...

• Replies: 1
• Views: 5,291
06-21-2013, 07:22 AM
41. ### Linear Mixed Models - required or optional?

Hi everyone! We want to replicate a study where they use Linear Mixed Models (LMM) in the analysis and I'm not sure if they do so only because their...

• Replies: 0
• Views: 1,846
06-21-2013, 07:15 AM
42. ### Mediation analysis - Preacher & Hayes - could someone check what I've done please?

I'm new to mediation analysis and have had a go with a simple model. I'd be thrilled if someone could have a look at this and let me know any issues...

• Replies: 0
• Views: 3,101
06-21-2013, 03:06 AM
43. ### TIME series

Can you calculate a Durbin Watson statistic (that is meaningful) for logistic regression?

• Replies: 0
• Views: 1,204
06-20-2013, 10:20 AM
44. ### Breaking up a variable

Hi, I have a question about a regression I am running (actually an event history/survival analysis model, but my question should apply to all types...

• Replies: 0
• Views: 1,284
06-20-2013, 09:46 AM
45. ### How can I handle an independent variable with many zeros?

Hey everyone! I'm currently working on my Master's thesis and am slightly stuck in the analytical part. For my research, I am trying to figure out...

• Replies: 3
• Views: 4,167
06-19-2013, 08:25 AM
46. ### Cross validation in SPSS

Hi, I need to conduct cross validation of my data to check for predictive validity. This is what I did so far. I divided the sample into two...

• Replies: 6
• Views: 13,600
06-19-2013, 03:34 AM
47. ### Ordinal scaled dependent variable (a ranking ~ with 500 categories): How to analyze?

Hello, I'm currently facing the following challange: I want to perform a regression analysis, but I am not sure, which model is appropriate. My...

• Replies: 1
• Views: 2,133
06-18-2013, 03:27 PM
48. ### ask: no aid dummy in panel data using stata

Dear all, I would like to ask the utilization of dummy variable in stata. Well, here is my model y=beta1 lnx1(1,x1)+beta2 nox1+beta3 lnx2...

• Replies: 0
• Views: 1,201
06-17-2013, 11:39 PM
49. ### using partial regression to fix omitted variable bias?

Hi Everybody, I am trying to find the effect of introducing a new variable. That is, I want to run two regressions: y = b0 + b1x1 and y...

• Replies: 0
• Views: 1,365
06-17-2013, 03:35 PM
50. ### Generalised least squares: from regression coefficients to correlation coefficients?

Hi All, I asked this on Stack Exchange, but it seems no-one there knows the answer. I wonder if anyone on talkstats can shed some light on it. For...

• Replies: 0
• Views: 865
06-17-2013, 12:40 PM
51. ### Regression help needed

Hi All, Assuming Congo gets foreign aid from Denmark, Sweden, UK, US and Germany. How do I go about getting the effect of Denmark's aid on Congo....

• Replies: 1
• Views: 1,371
06-17-2013, 12:07 PM
52. ### Linear Discriminant Analysis - Sample size requirements

As general question, Are 70 observations sufficient to design a reliable decision rule for discriminating between two groups, with a Fisher linear...

• Replies: 3
• Views: 3,769
06-16-2013, 12:49 PM

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.