Automated essay scoring applications to educational technology pdf
Matching readers and texts by Latent Semantic Analysis. A summary of the performance of LSA's scoring compared to the grader-to-grader performance across a diverse set of essays on 12 topics is shown in Figure 1.
Using Latent Semantic Analysis to assess knowledge: A solution to Plato's problem: Students were permitted to use the system independently to write their essay and were encouraged to revise their essays and resubmit them to the computer as many times as they wanted until they were satisfied with their grades. Death of a salesman american dream essay free many diverse topics, the IEA scores agreed with human experts as accurately as expert scores agreed with each other.
By the last revision, the average grade was Acknowledgements The web site http: We currently flag ones that are highly creative, off topic, or violate standard formats or structures for essays. Based on evaluations of the IEA over a wide range of essay topics and levels, the IEA proves as reliable at evaluating essay quality as human graders.
An additional trial is underway with a similar system in a Boulder Colorado middle school in which students summarize texts on sources of energy. These vectors can then be compared with vectors for essays or for texts of known content quality. In addition, essay-based testing is thought to encourage a better conceptual understanding of the material on the part of students and to reflect a essay impact, more useful level of knowledge and application by students.
The IEA permits students to receive writing practice without requiring all essays to be evaluated by the teachers.
The topics have included essays from classes in introductory psychology, biology, history, as well as essays from standardized tests, such as analyses of arguments, and analyses of issues from the ETS Graduate Management Achievement Test GMAT. Based on a statistical approach to analyzing the essays and content information from the domain, the technique can provide scores that prove to be an accurate measure of the quality of essays.
Then the content of each of the past dbq essays essays is compared against the content of a set of pre-graded essays on the topic.