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| How do you stop online students cheating? | How do you stop online students cheating? |
| (about 11 hours later) | |
| By Sean Coughlan BBC News education correspondent | By Sean Coughlan BBC News education correspondent |
| Imagine taking a university exam in your own home, under the watchful eye of a webcam or with software profiling your keystrokes or your syntax to see whether it really is you answering the questions. | Imagine taking a university exam in your own home, under the watchful eye of a webcam or with software profiling your keystrokes or your syntax to see whether it really is you answering the questions. |
| Online university courses have become the Next Big Thing for higher education, particularly in the United States, where millions of students have signed up for courses from some of the most upmarket universities. | |
| With spiralling costs and student loan debts crossing the trillion dollar barrier this year, the online university has been seen as a way of reaching many more people for much less money. | With spiralling costs and student loan debts crossing the trillion dollar barrier this year, the online university has been seen as a way of reaching many more people for much less money. |
| But a major stumbling block has been how such digital courses are assessed. | But a major stumbling block has been how such digital courses are assessed. |
| When students are at home how do you know whether they are cheating? How you do know the identity of the person answering the questions? | When students are at home how do you know whether they are cheating? How you do know the identity of the person answering the questions? |
| For the online courses to gain value, they need a credible way of assessing students and an important part of that is preventing fraud. | For the online courses to gain value, they need a credible way of assessing students and an important part of that is preventing fraud. |
| Home exams | Home exams |
| The Open University in the UK has been a pioneer of distance learning. | The Open University in the UK has been a pioneer of distance learning. |
| "It's a common problem across the sector - how do you know that the individual taking the exam is the right person?" says Peter Taylor, chair of the Open University's academic conduct group. | "It's a common problem across the sector - how do you know that the individual taking the exam is the right person?" says Peter Taylor, chair of the Open University's academic conduct group. |
| An important attraction of online courses is that students can study where and when they want - and he says the university is looking at ways of letting people take exams at home. | An important attraction of online courses is that students can study where and when they want - and he says the university is looking at ways of letting people take exams at home. |
| "We're looking at whether we can do online examinations, so the student doesn't have to come in to a hall, they just need to be sitting in front of their computer at a particular time when the exam is released to their computer," says Prof Taylor. | "We're looking at whether we can do online examinations, so the student doesn't have to come in to a hall, they just need to be sitting in front of their computer at a particular time when the exam is released to their computer," says Prof Taylor. |
| "Their computer would be locked down so that it can't use other materials. If you've got an appropriate webcam - that can provide you with effective invigilation." | "Their computer would be locked down so that it can't use other materials. If you've got an appropriate webcam - that can provide you with effective invigilation." |
| "I've not yet seen systems which I'm confident about at the moment - but I don't think it will be too long before these problems are resolved." | "I've not yet seen systems which I'm confident about at the moment - but I don't think it will be too long before these problems are resolved." |
| Online identity | Online identity |
| This still raises the question about how you know who is sitting the exam. | This still raises the question about how you know who is sitting the exam. |
| "There are various ways you can identify a person," says Prof Taylor. | "There are various ways you can identify a person," says Prof Taylor. |
| "One system we looked at meant that you had to type in a particular phrase - and the rate and the particular way you type is effectively a signature of the individual." | "One system we looked at meant that you had to type in a particular phrase - and the rate and the particular way you type is effectively a signature of the individual." |
| These are not distant-horizon ideas - Prof Taylor says he would expect such technology to be in place within the next five years. | These are not distant-horizon ideas - Prof Taylor says he would expect such technology to be in place within the next five years. |
| He also says that there is no reason to think more people would necessarily cheat online. | He also says that there is no reason to think more people would necessarily cheat online. |
| "Let's face it, in a large examination hall, each individual student isn't going to be closely watched. The idea of people bringing notes up their sleeves remains a problem." | "Let's face it, in a large examination hall, each individual student isn't going to be closely watched. The idea of people bringing notes up their sleeves remains a problem." |
| EdX, an online university project set up earlier this year by the Massachusetts Institute of Technology and Harvard, wants to make more use of the exam hall rather than less. | EdX, an online university project set up earlier this year by the Massachusetts Institute of Technology and Harvard, wants to make more use of the exam hall rather than less. |
| Students taking edX online courses will be able to sit their final exams in an international network of test centres, run by Pearson Vue. | Students taking edX online courses will be able to sit their final exams in an international network of test centres, run by Pearson Vue. |
| These will be formally supervised on-screen exams, using the edX website, and those who pass will receive a "proctored certificate", showing it has been achieved in an invigilated setting. | These will be formally supervised on-screen exams, using the edX website, and those who pass will receive a "proctored certificate", showing it has been achieved in an invigilated setting. |
| Bricks and mortar boards | Bricks and mortar boards |
| "This is a very important step," says edX's first president, Anant Agarwal. "Because people have been concerned that learners had no way of showing that they had done the work themselves, if they were applying for a job or for higher education." | "This is a very important step," says edX's first president, Anant Agarwal. "Because people have been concerned that learners had no way of showing that they had done the work themselves, if they were applying for a job or for higher education." |
| With enough randomly generated questions, he says, it would be possible to grade the work of tens of thousands of students at different times around the world. | With enough randomly generated questions, he says, it would be possible to grade the work of tens of thousands of students at different times around the world. |
| Such online testing techniques are going to have an impact on the traditional university course too, he says. | Such online testing techniques are going to have an impact on the traditional university course too, he says. |
| "Online education is like a rising tide, it's going to lift all boats," says Prof Agarwal. | "Online education is like a rising tide, it's going to lift all boats," says Prof Agarwal. |
| Students really like the instant feedback of online testing, he says. And interactive, multimedia online lectures make the old-style lectures look less effective. | Students really like the instant feedback of online testing, he says. And interactive, multimedia online lectures make the old-style lectures look less effective. |
| But this volume of testing depends on automated marking - and will mean a limit on the range of subjects and type of questions that can be examined. | But this volume of testing depends on automated marking - and will mean a limit on the range of subjects and type of questions that can be examined. |
| A computer is going to struggle to mark an essay on irony. | A computer is going to struggle to mark an essay on irony. |
| Industrial scale marking | Industrial scale marking |
| That's the challenge for another of the most significant online course providers, Coursera, set up by Stanford academics and backed by Silicon Valley investors. | That's the challenge for another of the most significant online course providers, Coursera, set up by Stanford academics and backed by Silicon Valley investors. |
| It has attracted students remarkably quickly - 1.6 million have signed up in the first year, taking courses from more than 30 top universities. | It has attracted students remarkably quickly - 1.6 million have signed up in the first year, taking courses from more than 30 top universities. |
| When the University of London's international section joined last month, 9,000 students signed up in the first 24 hours. | When the University of London's international section joined last month, 9,000 students signed up in the first 24 hours. |
| But how can such large numbers of candidates be reliably marked? | But how can such large numbers of candidates be reliably marked? |
| Coursera's co-founder Daphne Koller says trying to find a way to assess so many students is "part of the learning process". | Coursera's co-founder Daphne Koller says trying to find a way to assess so many students is "part of the learning process". |
| She says automatic marking can generate a score or a grade, but students want human feedback. And there isn't any technology that can judge whether an essay has really connected with a question. | She says automatic marking can generate a score or a grade, but students want human feedback. And there isn't any technology that can judge whether an essay has really connected with a question. |
| The Open University's Prof Taylor says their own experiments have shown that any software for assessing free-text answers requires a large amount of human intervention. | The Open University's Prof Taylor says their own experiments have shown that any software for assessing free-text answers requires a large amount of human intervention. |
| "Decisions about the quality of work are made by academics. There has to be a human brain in there somewhere," he says. | "Decisions about the quality of work are made by academics. There has to be a human brain in there somewhere," he says. |
| Coursera has been experimenting with peer assessment, where students grade each others' work, following guidelines set by the teacher. | Coursera has been experimenting with peer assessment, where students grade each others' work, following guidelines set by the teacher. |
| This allows for the marking capacity to grow with the class size - but it also depends on the reliability of fellow students. | This allows for the marking capacity to grow with the class size - but it also depends on the reliability of fellow students. |
| These online courses are also being discussed online - and blogs from students refer to disagreements over marking. | These online courses are also being discussed online - and blogs from students refer to disagreements over marking. |
| For instance, there are disputes among this global student body over British or American spellings. | For instance, there are disputes among this global student body over British or American spellings. |
| Honour code | Honour code |
| This brings the debate back to an old fashioned and low-tech form of preventing cheating. | This brings the debate back to an old fashioned and low-tech form of preventing cheating. |
| The "honour code" - or should that be "honor code" - is an ethical approach, based on a promise to maintain academic honesty. | The "honour code" - or should that be "honor code" - is an ethical approach, based on a promise to maintain academic honesty. |
| And there is research suggesting it really works and institutions with such a code have a lower level of cheating. | And there is research suggesting it really works and institutions with such a code have a lower level of cheating. |
| The need to establish a reliable system to stop online cheating is fast becoming a mainstream concern. | The need to establish a reliable system to stop online cheating is fast becoming a mainstream concern. |
| The latest recruit to edX, the University of Texas, says it wants to charge tuition fees for online courses that will count towards degrees - which will mean the same level of rigour in testing as traditional courses. | The latest recruit to edX, the University of Texas, says it wants to charge tuition fees for online courses that will count towards degrees - which will mean the same level of rigour in testing as traditional courses. |
| Martin Bean, vice chancellor of the Open University, said: "There is no doubt that this is the 'web moment' for higher education and a battle is shaping up for growing student numbers on global courses online, with some able to grow large numbers of students very quickly. | Martin Bean, vice chancellor of the Open University, said: "There is no doubt that this is the 'web moment' for higher education and a battle is shaping up for growing student numbers on global courses online, with some able to grow large numbers of students very quickly. |
| "However this is a battle which will be about brands and the market ability of the providers but also, crucially, about quality of teaching and credibility." | "However this is a battle which will be about brands and the market ability of the providers but also, crucially, about quality of teaching and credibility." |
| Will online universities become an important way to study? Will online courses have the same value as traditional degrees? | Will online universities become an important way to study? Will online courses have the same value as traditional degrees? |
| Comments: The distinction between Arts, Humanities, and Social Sciences on the one hand and Science, Technology, Engineering and Maths on the other will become starker because of online assessment. Although the distinction isn't absolute, it's broadly true that in the former subjects there are few questions to which the answers can easily be categorized as right or wrong (and allocated to these categories by a computer) and in the latter there are many such questions. For this reason, the two domains of intellectual work will pull away from one another regarding teaching and learning just as they already have done in other areas, such as research and the dissemination of knowledge. Arts, Humanities, and Social Sciences still rely primarily on the printed monograph for dissemination of research outcomes, while Science, Technology, Engineering and Maths use the journal article (commonly circulated digitally). In the former subjects, the academics care about ideas from long ago, while in the latter the academics care little for anything written more than a few years ago. This has considerable impact on institutions such as libraries, which in the Arts, Humanities, and Social Sciences are places where research is undertaken, while in Science, Technology, Engineering and Maths libraries are places where learning takes place. This all amounts to a fundamental rift in the idea of what a university is for, and it's part of an even wider rift in our culture's capacity to record the results of human thinking. The latest technologies are exceptionally good at enabling instant communication of the latest thinking--such as what someone on the ground in Aleppo thinks of the war there--and exceptionally poor at enabling long-term preservation of old thinking. (As the British Museum curators are apt to point out, it's much easier to preserve an Egyptian papyrus from 3,000 years ago than to preserve a floppy disk from 30 years ago.) | |
| Prof Gabriel Egan, De Montfort University | |
| There is no way to be absolutely certain without seeing the person face to face. Many international students work hard to find ways to beat the system - we see it all the time. The more enterprising then sell their skills. No wonder the sign up was so high for London. Just because someone is sitting in front of a computer with iris recognition technology doesn't stop them reading from a piece of paper stuck on the wall or another person dictating from afar. Both institutions and students are heading for a fall because theses courses will soon become discredited, (some distance qualifications are not accepted in the Gulf for example) and students will end up with a worthless certificate..... | |
| Jill Cook, Swansea | |
| : I teach commencing humanities students at one of Australia's new universities. There is a good story to tell here. The majority of these students apply to study with comparatively low tertiary admission scores and commence their degree courses quite unprepared for higher level learning. Many of these students are immigrants or the children of immigrants and come from homes where languages other than English are spoken most of the time. Around 22 per cent of these students come from the bottom SES quartile (compared to 16 per cent across all Australian universities). This is the changing face of higher education in Australia. Federal government policy is supporting a rapid increase in participation by students from low-SES backgrounds who are typically the 'first in the family' to attempt higher education. While attrition rates are quite high at the first year level (around 25 per cent of this humanities cohort don't continue on to the second year although many return later to try again) the majority do persist and go on to complete their degree studies. Most report high levels of satisfaction with their course and with their academic performance. The commencing humanities students are supported with foundation subjects to build academic literacy and other pedagogical strategies designed to build confidence and 'learner identity'. While some use is made of 'e-learning' or 'blended learning' approaches - welcomed by digitally literate younger students in particular - the most crucial and intensive learning in those early weeks and months on campus occurs in small face-to-face tutorials rather than in large lecture rooms or virtual forums. Students report that challenging classroom conversations - about difficult scholarly texts and controversial social issues - extend their thinking and their confidence. While Coursera and other online offerings might be playing an increasingly useful role in fueling students' passion to learn, and providing authoritative course content, I doubt that such offerin gs will easily replace the intensity and effectiveness of those Socratic situations where students and their teachers have difficult embodied conversations. | |
| Dr Andrew Funston, Melbourne, Australia | |
| I am currently studying the online course on edX. My take on the subject is simple, I am doing this course to increase my knowledge and go up the professional ladder. If i was to cheat around the tests, my knowledge would be incomplete and I will be found wanting during the interviews and hence cant get the job I want. This could be the sucess of hounour-code. These courses will enable people to learn new skills and bring them into the workplace. | |
| Sukh Bhullar, London | |
| As a mother of a toddler with a full-time job, it is almost impossible for me to study any other way than online. I am halfway through a three-year online MSc, and the academic standards are as rigorous as those for on-site learners, but with the added complexity of limited interaction with other students and lecturers. I'm sure there are students who will cheat online, just as there are in-person learners who plagarise. Generally though, most of us studying online are more committed because we'd made the choice of this learning method because we have to. | |
| Carolyn Bowick, Edinburgh | |
| I am currently studying on two Harvard/MIT edX computer science/programming courses and they are very good. I have completed a number of traditional degree courses during my life and I find this course delivery system to be less stressful and more productive than typical lecture hall/seminar/tutorial teaching. It is a style of learning which is particularly well adapted to older people as it can be done at home in one's own time and at zero cost. It is, however, a solitary experience and, as such, may not be right for younger people who are looking for a more fun/social experience at university. I have signed up to the 'honor code' and if you are only interested in learning, this works fine. I can see, however, that if your sole purpose is to obtain a diploma, then it would be very easy to cheat. On a technical degree course, I can't really see how just having the diploma would help you, as you would soon be found out in the work place if you didn't know your stuff ... This is the future of education in my opinion and I think it's wonderful. | |
| Michael O'Sullivan, Maidstone | |
| Before worrying about online students, first schools and universities round the world need to stop offline students buying their assignments and handing them in as their own work. "TurnItIn" software may stop plagiarism but it doesn't stop uniquely written essays and assignments being bought and submitted. Schools and universities currently have no mechanism to stop it, meaning most qualifications are not believable. | |
| Anon, |