Exam Scanning Results and Reports

Table of Contents

Accessing Test Scores and Reports
Reporting Features

This document explains how to access the results of exams processed by the [ http://help.unc.edu/?id=5825 ] Exam Scanning Service and the reporting features available.

 Accessing Test Scores and Reports

Web access to student scores is available through the [ https://onyen.unc.edu/cgi-bin/unc_id/reportcard.pl ] Onyen site.

Check the Results

  • Carefully check the results of the exams. Although errors are uncommon, they can occur. Check for questions that everyone missed -- perhaps you marked the wrong answer on the answer key.

  • If a student's score is inconsistent with their usual performance, check their answer sheet against their answers in the generated report.

  • Our system interprets light marks as unanswered questions and stray marks or incomplete erasures as multiple responses to a questions, which is considered an incorrect answer.

 Reporting Features

While the most important part of the output you receive from [ http://help.unc.edu/?id=5825 ] Exam Scanning is your students' scores, it also gives you several pieces of information that can be used to fine-tune your exam questions. These are, in effect, statistics or scores for the test as a whole, and scores for each question on the test. Among these statistics are: the Kuder-Richardson reliability coefficient, the difficulty index, the discrimination index, and the point-biserial correlation.

The Kuder-Richardson coefficient. (also know as the SKR-20 coefficient) This reflects the degree to which a test measures consistency or the degree to which a test and its scores reflect true or non-error variance. A score of +0.70 or above is generally considered acceptable.

The Difficulty Index. This is simply the proportion of students attempting the question who answered it correctly.

The Point-Biserial Correlation. This is a measure of how well the question discriminates between the upper and lower portions of the class. It is the correlation between the total score on the question and the total correct by the upper quartile of students.

The reports you get have the following parts:

  • individual students reports (how each one answered each question)

  • any questions ALL students missed

  • any questions ALL students answered correctly

  • general statistics on the class scores (raw average, percent average, etc.)

  • specific statistics on the set of questions (how they were answered)

  • a numeric breakdown of scores, then a histogram of these scores

  • a summary of scores for the students (with names and PID#s)

  • a summary of scores (with Social Security #s only)

Copyright 2002-2007 The University of North Carolina at Chapel Hill.

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