foobar

Grading Student Responses

A class is learning to sort cards. Each student was given five cards and asked to sort them properly.

The id for each student and the final order they sorted the cards are in the student_responses.csv file.

Your task is to score the card sorting done by each of the students.

Use the foobar.py module to write a new child class that:

1. Reads the csv data

2. Scores the card sorting

3. Writes the results for each student to a new CSV file

4. Prints the average and standard deviation of the student raw scores

Clone the GitHub repository and create a local branch using your first name. Make the necessary code modifications. Then, push the branch between 15:55 and 16:00 IST. Any pushes prior to 15:55 will result in automatic disqualification. Any pushes after 16:00 IST will also result in disqualification.

You are allowed one test push prior to 10:00 IST. The test push should contain the cloned copy of the master branch plus a single file named test_push.py. The file should have a single line in it that reads "Test push to foobar." Any pushes after 10:00 IST will result in automatic disqualification.

If you are unable to push to the repository, email a zipped copy of your branch to the test proctor between 15:55 and 16:00. The zip file should be titled your_first_name.zip

NOTE: You will not be able to push to the repository if you do not send your GitHub username to the test proctor.

Code Details

Details for the class interfaces are found in the code. The correct sorting order is A1, A2, A3, A4, A5

The student responses are arranged in the csv file like this:

card labels, student id

So, for the following sample entry:

A1,A2,A5,A4,A3,lionel.messi@barcelona.com

The student, Lionel Messi, sorted the five cards in the following order:

1. A1

2. A2

3. A5

4. A4

5. A3

His raw score is (3 correct cards * 4 points per correct card) - 2 points for incorrect cards = 10 because two moves (moving A5 to the end and moving A3 to the third position) would be required to change the submitted order to the correct order.

There are several test entries (the student id is test@test.com) in the csv file as well. They should be skipped.

In addition, any repeated entries (after the first) should be skipped. For example, if the same student id occurs in the csv file three times, the line with the first occurrence should be scored and the other two should be skipped.

The results should be written like this:

student id, raw_score, percentage correct to two decimal places

For example:

lionel.messsi@barcelona.com, 3, 0.20

The results file should be arranged from highest score to lowest score

Finally, write a unit test for the new class.