Experimental and quasi-experimental designs


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This chapter provides an overview of experimental and quasi-experimental research designs in the context of applied linguistics research. We begin by discussing key concepts, such as validity and reliability. Following this, descriptions of frequently used design types are provided, including pretest–posttest, time-series, Latin-square, repeated measures, and factorial designs. Examples are used to illustrate each design option. We also discuss the advantages and limitations of each approach, with particular emphasis on how careful research design may help control for threats to the internal and external validity of the findings. We end the chapter by summarizing factors that researchers should take into account when designing applied linguistics experiments. Copyright © 2020 selection and editorial matter, Jim McKinley and Heath Rose; individual chapters, the contributors.
Original languageEnglish
Title of host publicationThe Routledge handbook of research methods in applied linguistics
EditorsJim MCKINLEY, Heath ROSE
Place of PublicationOxon, New York
ISBN (Electronic)9780367824471
ISBN (Print)9781138501140
Publication statusPublished - Jan 2020


Rogers, J., & Révész, A. (2020). Experimental and quasi-experimental designs. In J. McKinley & H. Rose (Eds.), The Routledge handbook of research methods in applied linguistics (pp. 133-143). Oxon, New York: Routledge.


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