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Forum: Regression Analysis

Linear regression, linear models, nonlinear regression

  1. linear regression - coefficients too high (data in % as an alternative?)

    Hi everyone, I am new to statistics and I have to run 3 separate simple linear regressions (I averaged the data from 2003-2015 in order to run a...

    Started by Francesca-M‎, 09-05-2017 03:13 AM
    • Replies: 0
    • Views: 169
    09-05-2017, 03:13 AM Go to last post
  2. 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...

    Started by Martin Marko‎, 09-13-2017 12:03 PM
    • Replies: 0
    • Views: 169
    09-13-2017, 12:03 PM Go to last post
  3. 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...

    Started by tess2‎, 10-17-2017 12:08 AM
    categorical, percentiles, regression
    • Replies: 4
    • Views: 163
    10-17-2017, 10:43 AM Go to last post
  4. 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...

    Started by Edorian‎, 09-20-2017 11:41 PM
    • Replies: 0
    • Views: 155
    09-20-2017, 11:41 PM Go to last post
  5. How to report Multiple Regression Results

    Dear Forum, for my thesis I want to investigate the relationship between certain health behaviors (e.g. eating behavior) and participants...

    Started by lisannceline‎, 08-07-2017 09:22 AM
    • Replies: 0
    • Views: 145
    08-07-2017, 09:22 AM Go to last post
  6. 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...

    Started by Physiokrat‎, 09-25-2017 08:22 AM
    • Replies: 0
    • Views: 139
    09-25-2017, 08:22 AM Go to last post
  7. 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...

    Started by eemrun‎, 09-20-2017 09:33 PM
    forecast, forecast error, var
    • Replies: 0
    • Views: 134
    09-20-2017, 09:33 PM Go to last post
  8. Post 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...

    Started by Sonyver‎, 09-19-2017 03:25 AM
    • Replies: 0
    • Views: 133
    09-19-2017, 03:25 AM Go to last post
  9. Simple Regression

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

    Started by vernonicamexie‎, 10-10-2017 01:32 PM
    • Replies: 0
    • Views: 129
    10-10-2017, 01:32 PM Go to last post
  10. Question 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...

    Started by angbee‎, 10-22-2017 11:02 AM
    • Replies: 0
    • Views: 105
    10-22-2017, 11:02 AM Go to last post
  11. 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...

    Started by Weibull‎, 10-09-2017 07:32 AM
    • Replies: 1
    • Views: 95
    10-09-2017, 09:07 AM Go to last post
  12. 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...

    Started by MarcoVA‎, 10-21-2017 04:37 PM
    forward, information criterion, logisitic regression, statistic test, variable selection
    • Replies: 2
    • Views: 87
    10-21-2017, 09:21 PM Go to last post
  13. 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...

    Started by atrolle‎, 10-17-2017 04:33 AM
    adjacent-category logits, aggregation, linear predictors, ordinal logistic reg, single scoring function
    • Replies: 0
    • Views: 81
    10-17-2017, 04:33 AM Go to last post
  14. 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...

    Started by Hansi‎, 10-21-2017 06:25 PM
    analysis, group size, multigroup, sem
    • Replies: 0
    • Views: 74
    10-21-2017, 06:25 PM Go to last post
  15. 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...

    Started by martinl‎, Yesterday 07:42 AM
    • Replies: 2
    • Views: 74
    Yesterday, 07:29 PM Go to last post
  16. Question 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...

    Started by CathyK‎, 10-16-2017 08:15 AM
    control variable, logistic regression
    • Replies: 0
    • Views: 65
    10-16-2017, 08:15 AM Go to last post
  17. Moved: How to Interpret the Factor Analysis Findings

    Kindly help writing research findings for the Factor Analysis as attached

    Started by Zainab‎, 07-24-2016 06:17 PM
    • Replies: -
    • Views: -
    07-24-2016, 12:37 PM Go to last post
  18. 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...

    Started by HannaMa‎, 10-21-2017 04:38 PM
    anova, assessment, coefficient of variation, precision
    • Replies: 0
    • Views: 53
    10-21-2017, 04:38 PM Go to last post
  19. Moved: single observation multi-year variables

    Started by tomatowill03‎, 02-13-2011 10:10 AM
    • Replies: -
    • Views: -
    02-13-2011, 10:10 AM Go to last post
  20. Moved: I urgently need help with this specific regression model

    Started by A_Mans02‎, 04-25-2014 10:33 AM
    • Replies: -
    • Views: -
    04-25-2014, 11:38 AM Go to last post
  21. Moved: Long format for OLS?

    Started by hellonew‎, 05-23-2012 12:43 PM
    • Replies: -
    • Views: -
    05-23-2012, 12:50 PM Go to last post

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