Practice quizzes/tests:
Quiz 1 (practice)
Key to practice Quiz 1
Quiz 2 (practice)
Key to practice Quiz 2
Quiz 3 (practice)
Key to practice Quiz 3
Quiz 4 (practice)
Key to practice Quiz 4
Final (practice)
Key to practice Final
Random question generator
To get extra practice/experience with common problems, you can work with the random question generator. To use it, you must have R installed on your computer and be connected to the internet. You may then copy/paste:
source("http://myweb.uiowa.edu/pbreheny/misc/generator.R")
into R. You can then run any of the following commands.
Random questions from quiz 2:
prob() ## Probability question corr() ## Correlation/regression question quiz2() ## Randomly draws one of the above two questions
Random questions from quiz 3:
distr() ## Distributions (normal, binomial, central limit theorem) cat1() ## One-sample categorical data (using CLT approximation) cont1() ## One-sample continuous data quiz3() ## Randomly draws one of the above three questions
Random questions from quiz 4:
cat2() ## Two-sample categorical data cont2() ## Two-sample continuous data quiz4() ## Randomly draws one of the above two questions
Random questions from post-quiz 4:
ANOVA() ## ANOVA/multiple comparison question surv() ## Kaplan-Meier/survival question quiz5() ## Randomly draws one of the above two questions final() ## Randomly draws a question from quiz2, quiz3, quiz4, or quiz5
- Disclaimer #1: Not all aspects of the course lend themselves to random question generation. Seeing the “big picture” is also very important, but it is very difficult to ask automatically generated questions about such concepts. I hope that you find the tool helpful, but I would advice against using it as a wholesale replacement for conventional studying, as I will also ask broader, conceptual questions on quizzes/tests.
- Disclaimer #2: Quizzes, lectures, and labs from this course use actual data from real studies. The random question generator does not. So by all means, if the random question generator produces a study that provides convincing evidence that drinking coffee lowers blood pressure (or something), do not read anything into it! These are not real studies!