| Title: |
Basic Concepts of Item Response Theory: A Nonmathematical Introduction. Research Memorandum. ETS RM-20-06 |
| Language: |
English |
| Authors: |
Livingston, Samuel A.; Educational Testing Service (ETS) |
| Source: |
Educational Testing Service. 2020. |
| Availability: |
Educational Testing Service. Rosedale Road Mailstop 19R, Princeton, NJ 08541. Tel: 609-921-9000; Fax: 609-734-5410; Web site: http://www.ets.org |
| Peer Reviewed: |
N |
| Page Count: |
22 |
| Publication Date: |
2020 |
| Document Type: |
Reports - Evaluative |
| Descriptors: |
Item Response Theory; Scoring; Test Items; Scaling; Test Wiseness; Test Construction |
| Abstract: |
This booklet is a conceptual introduction to item response theory (IRT), which many large-scale testing programs use for constructing and scoring their tests. Although IRT is essentially mathematical, the approach here is nonmathematical, in order to serve as an introduction on the topic for people who want to understand why IRT is used and what it does but are uncomfortable with the mathematics. The focus is on the basic types of IRT that are commonly used today. |
| Abstractor: |
As Provided |
| Entry Date: |
2021 |
| Accession Number: |
ED614352 |
| Database: |
ERIC |