June 27, 2011:
Online Testing with Real-Time Stats
Burnsville, Minn. – TesTrac.com, Ltd, a leader in online testing, announces a new service offering in-depth statistical reporting that reflects data collected up to the last second. The new feature offers statistical reporting on Difficulty Index, P-value, Distracter Analysis, Point-Biserial Correlation, and Differential Item Functioning. Don't know what any of that means? Not a problem. You can use the tool to run reports and let a professional interpret the data.
“This really came at the request of our clients,” says Doug Odell, president of TesTrac.com. “This kind of analysis isn't something that we've ever done, but many of our clients hire psychometricians to perform statistical analysis on the data that their test-takers generate. But our smaller clients often can't afford to convert the raw test data to Unix-based legacy systems on their own.” So TesTrac.com stepped in to fill the void, with new tools that make such analysis possible for any client. “Our tool hits the testing database live,” says Odell, “so the data analysis includes test attempts up to the last second.”
Psychometrics is the study of the theory and technique of psychological measurement; that is, measuring knowledge, attitudes, and personality traits, among other things. Psychometricians often focus on creating and testing the tools used to measure these characteristics, such as questionnaires, tests, and personality assessments.
“As far as I know, TesTrac.com is the only online testing company offering a web-based psychometric tool, ” notes Odell. The psychometric feature went live June 12, and it's already been in heavy use by several of the company's clients. “We expect it to get more popular as customers figure out the kind of information they can get from it,” adds Odell.
Since 1998, Minnesota-based
TesTrac.com has used its proprietary, flexible, customizable online
delivery system to facilitate testing for any subject, in almost any
language, to web browsers across the globe. TesTrac Online offers a wide
array of administrative, security, and data mining tools, ensuring each
test is clear, accessible, and tightly controlled.
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