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Thread: Binary logistic regression independent variables, help please asap

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    Binary logistic regression independent variables, help please asap




    Hi,
    I am writing a short paper on voter turnout. I would like to use bianary logistic regression for this purpouse. I have one problem, my household income variable is coded in 16 categories (5000 each). Because of a relatively small sample, I can't afford to use it as a categorical variable, because it would mean 15 predictors more in the model and I think that there is some rule of thumb that I need at least 10 cases in each category of the dependent variable for each predictor to prevent overfiting the model)
    Because of this reasin, I would like to use this categorised variable as a continuous one (so that I don't have to use dummy variables), is that legit?
    Can I treat this variable as a cardinal one, if there are so many categories?

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    Re: Binary logistic regression independent variables, help please asap

    Quote Originally Posted by estatistics.eu View Post
    i am a Statistician / psychologist who can help you with your statistics and statistical design in spss, amos, statistica, Econometrics, minitab, stata, r, gpower (in psychometrics, psychology, sociology, marketing, statistics, or psychometrics) as well with the whole project (master, bachelor, dissertation). Regression, ttests, factorial analysis, correlation, time series, cluster analysis, cross tabulation, Discriminant Function Analysis, Hierarchical Linear Modeling, Significance Testing, path analysis, anova, ancova, glm, non-parametric (e.g. bootstrap), reliability, standardization, validity, mediation and moderation analyses can be done. Normality check as well plagiarism check is offered. We can also evaluate questionnaires. Private lessons are offered also using skype. Payment by paypal. email:info@estatistics.eu, facebook: elias estatistics.
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    Re: Binary logistic regression independent variables, help please asap


    Quote Originally Posted by estatistics.eu View Post
    i am a Statistician / psychologist who can help you with your statistics and statistical design in spss, amos, statistica, Econometrics, minitab, stata, r, gpower (in psychometrics, psychology, sociology, marketing, statistics, or psychometrics) as well with the whole project (master, bachelor, dissertation). Regression, ttests, factorial analysis, correlation, time series, cluster analysis, cross tabulation, Discriminant Function Analysis, Hierarchical Linear Modeling, Significance Testing, path analysis, anova, ancova, glm, non-parametric (e.g. bootstrap), reliability, standardization, validity, mediation and moderation analyses can be done. Normality check as well plagiarism check is offered. We can also evaluate questionnaires. Private lessons are offered also using skype. Payment by paypal. email:info@estatistics.eu, facebook: elias estatistics.
    I don't know about others, but I can't see how this answers Dans question.

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