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ERIC Number: EJ1071095
Record Type: Journal
Publication Date: 2015
Pages: 33
Abstractor: As Provided
Reference Count: 62
ISBN: N/A
ISSN: ISSN-0022-0973
Estimation of a Nonlinear Intervention Phase Trajectory for Multiple-Baseline Design Data
Hembry, Ian; Bunuan, Rommel; Beretvas, S. Natasha; Ferron, John M.; Van den Noortgate, Wim
Journal of Experimental Education, v83 n4 p514-546 2015
A multilevel logistic model for estimating a nonlinear trajectory in a multiple-baseline design is introduced. The model is applied to data from a real multiple-baseline design study to demonstrate interpretation of relevant parameters. A simple change-in-levels (?"Levels") model and a model involving a quadratic function ("Quadratic") for the nonlinear intervention phase data were also estimated. In addition, a simulation study was conducted to assess Markov chain Monte Carlo estimation of the logistic model and compare its trajectory recovery with use of the ?"Levels" and "Quadratic" models. While most of the logistic model's parameter values were recovered well, trajectory recovery was very reasonable using the simpler "Quadratic" model. Results are discussed along with recommendations for practitioners and directions for future research.
Routledge. Available from: Taylor & Francis, Ltd. 325 Chestnut Street Suite 800, Philadelphia, PA 19106. Tel: 800-354-1420; Fax: 215-625-2940; Web site: http://www.tandf.co.uk/journals
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: Institute of Education Sciences (ED)
Authoring Institution: N/A
IES Funded: Yes
Grant or Contract Numbers: R305D110024