binary logistic regression

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    Is Chi square test and binary logistic regression are not reliable due to small expected number?

    I received a critic from a reviewer stating that the the Chi-square test for some variables is not reliable due to either small expected number in the cells or due to some cell have zero and they should not be entered into binary logistic regression model. And the results obtained from the final...
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    Moderating Effect (Interaction) in Binary Logistic Regression

    Hey, I presume the answer to my question is fairly straightforward but im really having a hard time understanding how to approach this. I am conducting a binary logistic regression with dependent variable Conversion (0 = No, 1 = Yes) and three independent variables; Group (Control vs...
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    Analyzing another phenomenon by collapsing different levels of a response variable with 3 levels

    If a response variable has three levels, could these variants be collapsed differently and obtain pertinent analyses? For example, if a response variable has the following three levels: - deletion of a segment; - addition of a segment; and - application of no rules. Could I develop two...
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    Loglinear vs. Logistic Regression

    Hello! I have a question about SPSS. In my thesis, I have four categorical (2 levels) variables. Three of them are IV and one of them is DV. I know I need to use Loglinear analysis or Binary Logistic regression. But what is the difference between Loglinear analysis and Logistic regression...
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    Comparison of 2 groups on SPSS

    Hi, I have 2 separate patients data sets, one from patients with a severe disease and another from a group of patients with a milder disease. The same variables were measured for both data set. What SPSS analysis method can I use to analyze the impact of one variable on both datasets. I am...
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    Binary logistic regression in SPSS

    Hi, Please can someone help me. I am conducting a binary logistic regression in SPSS. I have the dependent variable (with two possible values, i.e. 1 = participation and 0 = no participation), and a number of independent variables. I have run a simple binary logistic regression. However, I...
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    Logistic Regression Models Without Main Effects?

    Hi there, I am building logistic regression models measuring human behaviour, which consist of categorical variables: demographics, conditions, and interactions between the demographics and the condition variable. The big issue is that as per my theory tested I am not interested at all in the...