Nrts and crts l.jpg
This presentation is the property of its rightful owner.
Sponsored Links
1 / 10

NRTs and CRTs PowerPoint PPT Presentation


  • 385 Views
  • Uploaded on
  • Presentation posted in: General

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)

Download Presentation

NRTs and CRTs

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


Nrts and crts l.jpg

NRTs and CRTs


Two families of tests l.jpg

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 l.jpg

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


Nrt humor l.jpg

NRT Humor


What do crt scores look like l.jpg

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 l.jpg

NRTs are good for:

  • Assessing general ability

  • Ranking and ordering students

  • Discriminating among students

  • “Gatekeeping”


Problems with nrts l.jpg

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 l.jpg

CRTs are good for:

  • Measuring instructional gain

  • Determining how well students have mastered specific content

  • Studying instructional / institutional effectiveness


Comparison of nrt and crt l.jpg

Comparison of NRT and CRT


Types of tests l.jpg

Types of tests

  • Proficiency

  • Placement

  • Achievement

  • Diagnostic

  • Aptitude

  • Minimum competency


  • Login