Exams with merit

March 12, 2015

Why do medical faculties have such a problem with multiple choice questions? (“Campus Hunger Games”, Opinion, 5 March).

A chicken pecking randomly at four possible answers will score 25 per cent on average, one correct answer for three wrong ones. To reduce that to zero, while keeping 100 per cent unchanged, you award one mark for a correct answer and subtract one third for a wrong answer. One correct = +1, three times one third incorrect = -1. Total equals average equals zero.

It is necessary to make the students answer all the questions and to treat absent answers as wrong. Otherwise, the terror of unexplained negative marking will prevent students from making educated guesses, which will mostly be correct. Clever but nervous students get all their answers correct, but do not answer enough questions to pass.

Such marking procedures are justified because the purpose of an exam is to see how much students have learned or failed to learn.

Multiple choice questions are difficult to compose well. My daughter, a graduate in modern history, demonstrated to me that she could pass science multiple choice questions by choosing the most carefully written and detailed options and ruling out some distractors using her GCSE knowledge. Multiple choice questions are a useful way of giving marks to students who lack sufficient recall or writing ability to answer “What is…?” questions but can distinguish between right and wrong answers in questions such as “Which of the following is…?” It is easy to boost marks by putting in weak, even silly, “wrong” answers.

Few faculties still have a will for the exam scrutiny that Kevin Fong described.

Even more effective at raising marks is to remove negative marking altogether, so that students who know 20 per cent of the answers and guess the rest will average 40 per cent – a pass in most university exams. Multiple choice questions are an excellent way of cutting staff workloads and the marking can be done by non-specialists or scanners. Multiple choice questions also assist in the essential grade inflation which troubled Fong, but they do tax the intellect of academics.

Hugh Fletcher
Retired director of education
Biological sciences
Queen’s University Belfast

Times Higher Education free 30-day trial

You've reached your article limit

Register to continue

Registration is free and only takes a moment. Once registered you can read a total of 6 articles each month, plus:

  • Sign up for the editor's highlights
  • Receive World University Rankings news first
  • Get job alerts, shortlist jobs and save job searches
  • Participate in reader discussions and post comments
Register

Have your say

Log in or register to post comments

Featured Jobs

Most Commented

United Nations peace keeper

Understanding the unwritten rules of graduate study is vital if you want to get the most from your PhD supervision, say Kevin O'Gorman and Robert MacIntosh

David Parkins Christmas illustration (22 December 2016)

A Dickensian tale, set in today’s university

Eleanor Shakespeare illustration (5 January 2017)

Fixing problems in the academic job market by reducing the number of PhDs would homogenise the sector, argues Tom Cutterham

poi, circus

Kate Riegle van West had to battle to bring her circus life and her academic life together

Houses of Parliament, Westminster, government

There really is no need for the Higher Education and Research Bill, says Anne Sheppard