| Title: |
Partial-Interval Estimation of Count: Uncorrected and Poisson-Corrected Error Levels |
| Language: |
English |
| Authors: |
Yoder, Paul J.; Ledford, Jennifer R.; Harbison, Amy L. (ORCID 0000-0003-2983-4976); Tapp, Jon T. |
| Source: |
Journal of Early Intervention. Mar 2018 40(1):39-51. |
| Availability: |
SAGE Publications. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail: journals@sagepub.com; Web site: http://sagepub.com |
| Peer Reviewed: |
Y |
| Page Count: |
13 |
| Publication Date: |
2018 |
| Sponsoring Agency: |
National Institutes of Health (DHHS) |
| Contract Number: |
U54HD083211 |
| Document Type: |
Journal Articles; Reports - Research |
| Education Level: |
Early Childhood Education |
| Descriptors: |
Computation; Child Behavior; Early Childhood Education; Early Intervention; Intervals; Time; Error of Measurement; Accuracy; Special Education; Statistical Analysis |
| DOI: |
10.1177/1053815117748407 |
| ISSN: |
1053-8151 |
| Abstract: |
A simulation study that used 3,000 computer-generated event streams with known behavior rates, interval durations, and session durations was conducted to test whether the main and interaction effects of true rate and interval duration affect the error level of uncorrected and Poisson-transformed (i.e., "corrected") count as estimated by partial-interval recording. For both count estimates, shorter intervals and lower true rates resulted in less error than longer intervals and higher rates. For all conditions tested, Poisson-corrected estimates were more accurate than uncorrected estimates. Therefore, using Poisson-corrected estimates and short intervals are recommended when partial-interval recording is used to estimate counts. Generality of results might be restricted to events that are about 1-s long. A URL was provided to aid in the computation of corrected counts. |
| Abstractor: |
As Provided |
| Number of References: |
27 |
| Entry Date: |
2018 |
| Accession Number: |
EJ1168910 |
| Database: |
ERIC |