ERIC Number: ED415696
Record Type: RIE
Publication Date: 1997
Designing a Language Study.
Brown, James Dean
Some issues in the design of classroom research on second language teaching are discussed, with the intention of helping the researcher avoid conceptual pitfalls that may cripple the study later in the process. This begins with an examination of concerns in sampling, including definition of a population to be studied, alternative sampling strategies (random sampling, stratified random sampling), sample size, and the generalizability of the results based on the sample selected. Different types of variables (dependent, independent, moderator, control, intervening) and their roles in the research are then explained. A subsequent examination of research designs first defines treatment, control and experimental groups, and observations, and then distinguishes different designs, including true experimental, posttest-only, pretest-posttest (with and without control group), time series, and nonequivalent group designs. Characteristics, advantages, and problems with each design are noted. Validity is defined as the degree to which results can be accurately interpreted and effectively generalized, and these concepts are discussed further, including examination of threats to both internal and external validity. Finally, ethical issues are considered, basic guidelines are offered, and sources for further guidance are suggested. (Contains 26 references.) (MSE)
Publication Type: Guides - Non-Classroom
Education Level: N/A
Audience: Practitioners; Teachers
Authoring Institution: N/A
Note: In: Classroom Teachers and Classroom Research; see FL 024 999.