diagnosis

  1. D

    categorical predictor variable with many categories

    I want to test the ability of a categorical variable, which has many categories, to predict the outcome of a continuous variable. Specifically, I want to see if diagnostic category (10 different diagnoses) predicts a treatment outcome. After wading through many different sites and texts, I'm...
  2. sufeipopo

    How to interpret residual plot of a logistic regression?

    Hi all, I'm working on a default probability model and was modeling the default probability using logistic regression. The pearson residual and deviance residual plots are attached. Can anyone give me some idea about how to interpret these two plots? Do these plots indicate...
  3. sufeipopo

    How to interpret residual plot of a logistic regression?

    Hi all, I'm working on a default probability model and was modeling the default probability using logistic regression. The pearson residual and deviance residual plots are attached. Can anyone give me some idea about how to interpret these two plots? Do these plots indicate...
  4. S

    WANTED: statistical basis for subtest weighting

    Hello everyone, I am planning my Master thesis project in Neuropsychology and I am currently facing a statistical/mathematical challenge. Here is what it is about: Three patient groups will be administered a cognitive screenind instrument with seven subtests. Originally, the scores...
  5. T

    Test of proportions; study design and sample size

    I want to look to see if there is an association between two conditions. Basically, patients come into dermatology and complain of an itch between their shoulder blades and are diagnosed with this thing called "NP". I believe the itch may be due to a muscle/skeletal imbalance hence something...