Tiwaporn Kongsom(2009) has adopted CSs proposed by Tarone (1977), Faerch and Kasper (1983)
Bialystok (1990), Dornyei (1995) and Dornyei and Scott (1997) as well as by using
data on CSs drawn from the speaking task pilot study in November 2006 as a
foundation for the taxonomy of CSs identified in the study. The reason for adopting
the strategies based on such taxonomies is that these researchers’ classification of CSs
is well organised and clearly defined. In addition, the results of previous research
(Wongsawang, 2001; Wannaruk, 2002; Weerarak, 2003; Pornpibul, 2005) and the
results from speaking tasks in the pilot study revealed that CSs which were commonly
used by Thai learners were similar to the proposed taxonomy in her study.