39 based  on  objects  behavior  during  interviews,  setting  and  environment
around the object. 2. Recorder
The  writer  uses  recorder  as  a  tool  to  get  data  in  the  process  of  observing and collecting data. The recorder that is used is the voice recorder.
3. Note taking The  writer  also  takes  some  notes  during  observation  and  collecting
information to complete the data.
3.4 Technique of Data Collection
3.4.1 Observation Method
Observation  is  a  method  of  data  collection  in  which  the  interesting situation, action, natural phenomena and the work process are recorded
as an object of research. Sutrisno Hadi 1980 said that the observation is  a  complex  process,  a  process  which  is  composed  of  a  variety  of
biological  and  psychological  processes.  Based  on  the  implementation process  of  data  collection,  observation  can  be  divided  into:  participant
observation and non-participant observation. In participant observation, the researcher is involved in the daily activities of the observed object.
In  non-participant  observation,  the  researcher  is  just  as  independent observers. In this study, the writer tends to choose observation of non-
participant  in  the  process  data  collection.  The  writer  just  sits  in  the classroom and records all utterances of the teacher in order to know the
www.eprints.undip.ac.id © Master Program in Linguistics, Diponegoro University
40 language that the teacher often switches when she teaches her students.
The step of observation method is an effort of researchers to  give data that  are  directly  related  to  the  investigated  problem.  The  steps  of
observtion are: 1. Observing the
object. The writer makes observation to the teacher’s behavior  in  the  classroom  when  the  teacher  teaches  and  interacts
with the student. 2. Recording all the speech and behavior of the teacher when teaching
in the classroom. 3. Formulating a temporary result.
4. Identifying and classifying the data based on various code switching and the theory.
3.4.2 Interview Method
The  interview  is  a  way  of  collecting  data  that  is  used  to  get  the information  directly  from  the  source  and  even  more  profound  in  the
least  amount  of  respondents.  Based  on  the  nature  question,  there  are two  types  of  interview,  namely  structured  interview  and  unstructured
interview.  Structured  interview  is  a  technique  of  collecting  data  with questionnaires  that  have  been  arranged.  Unstructured  interview  is  an
interview that is a free interview. The researchers do not use systematic and  complete  an  interview  guide  to  collect  the  data.  The  guidelines  of
interview form are the outlines of the problem. In this study, the writer
www.eprints.undip.ac.id © Master Program in Linguistics, Diponegoro University
41 tends to undertake the unstructured interview as one of the instruments
in this research. The writer used the steps of interview as follows: 1.  Preparing  a  research  instrument,  such  as  written  questions  and
recording. 2. Writing the result of interviews into the notes.
3. Confirming the results of interviews with informant teacher.
3.5 Data Analysis