univariate testing

  1. D

    What is is the meaning of this p-value ?

    i am trying to perform cox regression on survival data of tumor patients with the covariate "resection status". Patients had either biopsy (=0), partial resection(=1) or total resection of the tumor (=2). I have trouble understanding the following: "total resection" (=2) is the reference value...
  2. E

    How to perform several univariate analysis (binary logistic regression)

    I have a simple question about SPSS. I have a dataset in which I want to identify variables (among 154) which may be associated with my dependent variable (binary). To present the results, peer-review want univariate analysis for all 154 of them. Do I have to do a bivariate binary logistic...
  3. P

    Selecting Variables for Multiple Regression (Univariate Significance Levels)

    Hi All! I really hope someone can answer my question. I am building multiple linear regressions and I am testing salient variables one by one at the univariate level to determine whether I should include them. However, what is the current acceptable limits of p values to include/exclude...