Analyzing randomized controlled interventions: Three notes for applied linguists
Analyzing randomized controlled interventions: Three notes for applied linguists
Author(s): Jan VanhoveSubject(s): Foreign languages learning
Published by: Wojskowe Biuro Historyczne im. gen. broni Kazimierza Sosnkowskiego
Keywords: randomized experiments; cluster randomization; pretest-posttest design; covariates; mixed-effects modeling
Summary/Abstract: The author discusses three common practices that obfuscate or invalidate the statistical analysis of randomized controlled interventions in applied linguistics. These are (a) checking whether randomization produced groups that are balanced on a number of possibly relevant covariates, (b) using repeated measures ANOVA to analyze pretest-posttest designs, and (c) using traditional significance tests to analyze interventions in which whole groups were assigned to the conditions (cluster randomization).
Journal: Studies in Second Language Learning and Teaching
- Issue Year: V/2015
- Issue No: 1
- Page Range: 135-152
- Page Count: 17
- Language: English
