Biostat 200C Midterm Preparations

Biostat 200C

Published

May 6, 2025

  1. What is the deviance for

    • the full/saturate model
    • the fitted model

  2. Calculate the log-likelihood and deviance values of this fitted model using information from R output.

  3. State the hypotheses being tested in a goodness of fit test by the analysis of deviance approach.

  4. How to make conclusion from a goodness of fit test based on an R output?

  5. Calculate the odds and 95% confidence interval for the calculated odds given a set of covariates.

  6. Explain whether the log-likelihood function is a concave function given the link

  7. ROC, sensitivity, specificity

  8. Log-linear models

  9. Total number of parameters in different GLMs, e.g., multinomial/ordinal model

  10. Link functions/corresponding latent variable distributions

  11. Exponential family distributions

    • What is the canonical parameters?
    • Mean and variance.
    • Canonical link function