The embedded design, which is one of mixed methods designs comprising both
quantitative and qualitative methods, was used to conduct the study. In the embedded design,
it is collected quantitative and qualitative data simultaneously or sequentially, but these data
forms have a supportive role for each other (Creswell, 2011).
The quantitative part of the study has the single group pretest-posttest design. In this
design, one group of subjects is given a pretest, then the treatment, and then the posttest (see
Table 1). The pretest and posttest are the same.
A qualitative research approach is employed to thoroughly analyze a situation in the
research. In the qualitative part of the study, it is used a case study. The Case study is an indepth
analysis of a situation (McMillan & Schumacher, 2010). The qualitative part of this
study consists of prospective teachers’ opinions.