Multiple choice assessments simply cannot assess students’ communication and explanation abilities.This is not the first hint we’ve had that machines may be capable of grading long-answer tests; last year, a study found a high degree of similarity between human and computer-generated scores of over 20,000 middle- and high-school essays on a variety of topics.Then in 1956, the second generation of computers hit.
The ENIAC (Electric Numerical Integrator and Computer) was created by John Mauchly and John Presper Eckert.
The ENIAC contained 17,468 vacuum tubes, 70,000 resistors, 10,000 capacitors, 1,500 relays, 6,000 manual switches and 5 million soldered joints.
Multiple-choice tests are a pretty terrible way of measuring students’ understanding of complex concepts, but overextended teachers rely on fill-in-the-bubble exams because they’re easy to mark.
There may be a better alternative: Scientists have created software that can grade short-answer essays in five seconds—and a new paper in the A group of researchers, led by Elizabeth Beggrow at the Ohio State University, assessed science students’ understanding of key ideas about evolution using four methods: multiple-choice tests, human-scored written explanations, computer-scored written explanations, and clinical oral interviews.
A computer is a general purpose device that has developed a lot over the years.
Could you live without a computer or any technology that uses the internet?
Clinical interviews—which allow professors to ask follow-up questions and engage students in dialogue—are considered ideal, but would be an impractical drain on teachers’ time; in this study, the clinical interviews lasted 14 minutes on average, and some took nearly half an hour.
Machines, on the other hand, could generate a score in less than five seconds, though they took a few minutes to set up.
Skeptics object that machines can be fooled and that robo-graders threaten “the idea that reading and writing are uniquely human.” While it’s obviously impossible for a robot to judge a paper’s creative or literary merit, being able to assign students essays rather than multiple choice tests could revolutionize science teaching.
Posted on March 22, 2013 The word ‘computer’ means someone or something who computes.