About 75% of overall grade. Exams are given at the university testing center. There is no time limit. Typically it takes about 1-2 hours. Exams are mostly multiple choice mixed with short answer about their reason. Exams are closed book/notes exams. Students are allowed to bring in a calculator and prepare a formula sheet on which students are allowed to put anything they think will help them. Exam allows to testing students more comprehensive questions. These questions test not only a single concept, but more importantly test their understanding of statistical reasoning and problem solving. In general, I am comfortable that these exams reflect students' understanding of the knowledge. Center has its rules to minimize cheating. Formula sheet must be turned with the exam booklet and scrap papers.
Tables required for the exams are provided.

Students are required to bring a calculator and allowed to preparing a page of formula sheet on which students are allowed to put anything they think will help them, including worked out examples.


Students are required to bring a calculator. They can use it in anyway.

Both calculators and computer are used on homework and in class.

The exam questions usually start with a real world problem. Questions are designed to cover a sequence of concepts. The solution of a question is designed by trying to prevent the use of the solutions from previous questions, but use the concepts from previous questions within the same real world problem. True/False questions are also common in the exam. They usually test a specific concept and the relation between concepts. Usually three points for each question. An exam usually consists of 35 questions before final. Final usually consists of 52 questions. Over 905 of the questions are conceptual knowledge/interpretation and reasoning questions.
I decide the important concepts to be tested first. Then, I look for some real world data sets that may be appropriate for the concepts covered and some concepts questions such as true/false questions that I gave previously. I also consider some real world scenarios and create questions based on the scenarios without having the actual data values.

I run some analyses myself before developing questions. Using the results, I began to think about questions that will test the important concepts I intend to test. Some questions will be multiple choice questions, some questions will be reasoning questions and some will be true/false questions.

I do not ask another instructor reviewing questions. However, on many occasions, we share each other the type of questions we use.

This is really from the experience. We have a testing center to monitor our tests. In the summary report, the amount of time spent by each student was also recorded. This gives me data to decide if the exam is reasonable timewise.

We have a testing center to monitor our tests. The summary report sent to instructor also includes the percent of students who answered each choice of multiple choice questions. This summary gives me good ideas on how students chose their answers and knowing how I chose the choices gives me good ideas as to why they made mistakes. The formative summary of this assessment report tells me the degree of difficulty for each question and where the mistakes were. I usually look for a balance of some difficult and some easier questions. An average and median between 70% to 80% would be considered a good exam. In addition, I look for the level of difficulty and where/why they made mistakes as feedback for revising my instructional approach in the future semesters.

Use analytical scoring along with holistic scoring for their interpretation or reasoning.

Students start at 100% and lose points for mistakes.

In general, they do not get partial credit for multiple choice questions. However, they may lose additional point for incorrect interpretation or their reasoning.

There is no expected average score. However, I have a good idea about the average score for each test from exams of previous years. In general, scores are not curved during the semester. However, the final class grade may be adjusted for borderline scores.

The straight total at the end of semester is used for final grade. No grade is given to each exam.

The course grades are, in general, not curved, except for borderline cases.


Virtually no class time is spent to review for an exam. Occassionally I offer out of class review sessions, but this is not a norm. There is no review sheet. However, I develop a web site for online exercises. There are a collection of problems with detailed solutions on this online assessment site. Every student can logon and do their practice as many times as they want. The site also collect the duration time each student are on the site. A summary of the frequency of chosen answers are reported. This allows a quick check on how students understand each concept.

The online assessment site is available at anytime. Students are encouraged to do these online problems, but not required.


About 20 to 30 minutes to go over the questions where over 1/3 of students made mistakes.

Only questions with more than 1/3 of students making mistakes are discussed.

Students received a report card from the testing center. The report card include a total score for the exam, the questions missed and student's own answer. Students are encouraged to come to office hours to discuss each question they missed.

Scores are usually summarized using stem-leave plot along with mean, median, highest, lowest, standard deviation.

They are not given access to an answer key. However, each student is encouraged to come to discuss their work during office hours.

The exam is scored right after finishing the exam. They immediately know there scores and questions they missed. The comments made in class are usually about the performance of the whole class, and discussion of questions missing by more than 1/3 of students. Students usually use office hours to talk about individual performance.

The system I use perhaps more close to losing points for mistakes.