nrts and crts
Download
Skip this Video
Download Presentation
NRTs and CRTs

Loading in 2 Seconds...

play fullscreen
1 / 10

NRTs and CRTs - PowerPoint PPT Presentation


  • 505 Views
  • Uploaded on

NRTs and CRTs. Two families of tests. Norm-referenced tests (NRT) The relative standing of a student is important (ex. TOEFL, GRE) Students are measured against other students Criterion-referenced (CRT)

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'NRTs and CRTs' - tod


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
two families of tests
Two families of tests
  • Norm-referenced tests (NRT)
    • The relative standing of a student is important (ex. TOEFL, GRE)
    • Students are measured against other students
  • Criterion-referenced (CRT)
    • How well a student meets a set of pre-specified criteria is important (ex. Exams in content classes)
    • Students are measured against a set of criterion
what do nrt scores look like
What do NRT scores look like?

Imagine that 24 students take a 25-item proficiency test:

We expect most students to be “average” with some higher and some lower

what do crt scores look like
What do CRT scores look like?

Imagine that 24 students take a 25-item test on the first day of the semester and then again on the last day of the semester:

We expect most students to “bomb” the test the first time (because they don’t know the material yet, and “ace” the test the second time (because they’ve learned the material over the course of the semester.

nrts are good for
NRTs are good for:
  • Assessing general ability
  • Ranking and ordering students
  • Discriminating among students
  • “Gatekeeping”
problems with nrts
Problems with NRTs
  • Teaching/testing mismatches
  • Lack of instructional sensitivity
  • Lack of curricular relevance
  • Restriction to normal distribution
  • Restriction to items that discriminate
crts are good for
CRTs are good for:
  • Measuring instructional gain
  • Determining how well students have mastered specific content
  • Studying instructional / institutional effectiveness
types of tests
Types of tests
  • Proficiency
  • Placement
  • Achievement
  • Diagnostic
  • Aptitude
  • Minimum competency