Summer Institute courses are offered in many formats. Participants can tailor course elections to individual time constraints and interests. Multi- week courses provide more in-depth coverage of a topic, include readings, homework, and examinations, and often providing participants with an opportunity to practice survey techniques.  One-week courses give an overview of a methodology topic, including readings and homework.  One-day workshops are offered for those who need to learn a specific technique or method in a short period of time.