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Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

1. Repeated Measures - moderation / two outcomes issue

Hey folks! By what procedure can I test whether the association between two dependent variables D1 and D2 changes as a function of within-subject...

• Replies: 0
• Views: 169
09-13-2017, 12:03 PM
2. Converting a continuous variable into a categorical variable (low, medium, high)

I have a continuous dependent variable (scores on an exam) and a number of predictor variables that I'd like to use in a regression analysis, such as...

• Replies: 4
• Views: 163
10-17-2017, 10:43 AM
3. Spend against views/day. Include days of no spend?

Hi everyone, just looking at doing some simple linear regression and I've got views on an article. Occasionally we choose to spend a bit of money...

• Replies: 0
• Views: 155
09-20-2017, 11:41 PM
4. Fixed effects / clustered standard error in multi-level data

Hi everyone :) I'm analyzing the effect of political corruption on the bid-ask spread of US political entities, namely my data set consists of...

• Replies: 0
• Views: 139
09-25-2017, 08:22 AM
5. Residual Modelling and Generating Scenarios for variables

newbie here with a trivial question. i am trying to create scenarios on a set of macro variables. i started with creating a bayesian VAR model on...

• Replies: 0
• Views: 134
09-20-2017, 09:33 PM
6. two sided multivariate

Hi, I have a question, what will I do with this? In univariate analysis, if the population standard deviation σ is known, the appropriate...

• Replies: 0
• Views: 133
09-19-2017, 03:25 AM
7. Simple Regression

The manager of Colonial Furniture has been reviewing weekly advertising expenditures. During the past 6 months, all advertisements for the store...

• Replies: 0
• Views: 129
10-10-2017, 01:32 PM
8. Linear regression with only these data σx/σy =1.2

I have to demonstrate a linear relation between two variables X and Y using these data: σx/σy = 1.2. :mad: Small size effect required. Test...

• Replies: 0
• Views: 105
10-22-2017, 11:02 AM
9. Hierarchical Linear Modeling (HLM) Explanation

I sought help actually doing an HLM a few weeks ago and found the assistance very helpful. Now, I'm curious about more of the actual meaning of...

• Replies: 1
• Views: 95
10-09-2017, 09:07 AM
10. Forward selection of non significant variables

Hi, In SAS Enterprise Miner, I trained a logistic regression with forward selection and AIC criteria. I grouped rare levels for categorical...

• Replies: 2
• Views: 87
10-21-2017, 09:21 PM
11. Ordinal logistic regression - How to get a single scoring function?

Hi all, I'm running ordinal logistic regressions, with adjacent-category logits. The dependent variable has four ordered levels. So I have 3...

• Replies: 0
• Views: 81
10-17-2017, 04:33 AM
12. Multiple regression multigroup analysis in Amos

I am testing the hypothesised effect in a model using SEM A -> B between two groups. The results of the standardised path coefficients (SPC) are...

• Replies: 0
• Views: 74
10-21-2017, 06:25 PM
13. Include or Exclude a Variable in Regression ?

Dear all, Dr Timothy Z Keith advised that a new variable should not be included unless it is a common cause (associated with both dependent...

• Replies: 2
• Views: 74
Yesterday, 07:29 PM
14. Controlling for time

Hello, Thank-you for taking the time to read this post. I have managed to get myself very confused about what is (hopefully) quite a simple...

• Replies: 0
• Views: 65
10-16-2017, 08:15 AM
15. Moved: How to Interpret the Factor Analysis Findings

Kindly help writing research findings for the Factor Analysis as attached

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• Views: -
07-24-2016, 12:37 PM
16. precision assessment of an experimental method

Hi everyone, I have a very basic knowledge of statistics so apologies if the question is not formulated in appropriate terms. I really hope to get...

• Replies: 0
• Views: 53
10-21-2017, 04:38 PM
17. Moved: single observation multi-year variables

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02-13-2011, 10:10 AM
18. Moved: I urgently need help with this specific regression model

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04-25-2014, 11:38 AM
19. Moved: Long format for OLS?

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05-23-2012, 12:50 PM

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