A Practical use for the KR-21 Reliability Coefficient
Bibliographic Data
| ID | 13672467 |
|---|---|
| Authors | Richard A Charter (A V Long Beach Healthcare System, California, corresponding author) |
| Year | 2007 |
| Volume | 101 |
| Issue | 2 |
| Pages | 673-674 |
| Publication date | 2007-10-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Psychological Reports (JOURNAL) |
| Journal identifiers | ISSN: 0033-2941 • E-ISSN: 1558-691X |
| Publisher | SAGE Publishing (PUBLISHER • US) |
| DOI | 10.2466/pr0.101.2.673-674 |
| PMID | 18175512 |
| OpenAlex | W2044957046 |
| Language | EN |
| References cited | 1 |
KR–21 provides a lower limit for the computed value of KR–20. KR–20 is equivalent to coefficient alpha when a test is composed of dichotomous items scored 0 or 1. Therefore, KR–21 coefficients, computed from simple summary statistics, can be used in cases in which journal authors do not provide the test score reliability. Use of KR–21 in these cases will provide the reader with a lower limit for the value of KR–20
Physics · Reliability (semiconductor · Reliability engineering · Statistics · Engineering · Mathematics · Nuclear Engineering Thermal-Hydraulics · Probabilistic and Robust Engineering Design · Psychology · Risk and Safety Analysis
| Citation velocity | historical |
|---|---|
| Highly cited | No |