field.  In  planning  the  actions,  the  researcher  worked  together  with  the  English teacher of grade VII A SMP N 1 Moyudan. The aim of the actions is  increasing
the  students’  speaking  ability.  The  action  plan  is  using  Jigsaw  to  improve students’ speaking ability.
3. Acting and Observing the action
In this process, the researcher carries out the actions which have been planned in the class. The actions will be implemented in some cycles depends on the need
of the research. 4.
Evaluation In this process, the researcher takes note on how the students react to the
actions and some obstacles of implementing the action. 5.
Reflection
In this last stage, the researcher makes some reviews on what happened in the implementation of action process. Moreover, this reflection is done to find out
whether the action is successful or not. If the action was successful, the researcher will  continue  to  implement  it.  However,  if  the  action  is  not  successful,  the
researcher  will  try  to  modify  the  action  or  find  the  suitable  action  so  that  the condition will be better.
G. Research Validity and Reliability
To get  the validity of the data, Anderson et  al.  1994 in  Burns 1999 state that  there  five  criteria  of  validity:  democratic  validity,  result  outcome  validity,
process  validity,  catalytic  validity,  and  dialogic  validity.  The  researcher  used  all the criteria of validity
.
1. Democratic validity
It is concerned to the extend in which the research is trully collaborative. The researcher  use  the  democratic  validity  by  asking  the  seventh-grade  English
teacher,  the  principal,  and  the  class  VII  A  students  to  work  collaborativelly  to improve the speaking ability of the students in the teaching learning process.
2. Outcome validity
It  is  related  to  the  outcome  achieved  by  the  researcher.  The  achievement  of the outcome involves not only problem solving but also appearing new questions
in  the  related  research.  To  get  the  outcome  validity,  here  the  researcher  use  the result of the study at the first grade students of SMP N 1 Moyudan in a scheme to
make new questions. 3.
Process validity Process  validity  means  the  actions  that  are  done  in  the  research  are
believable. To get the process validity, the researcher collected the data by doing classroom  observations  and  took  some notes during the research.  The  researcher
notedrecorded  anything  which  happened  in  the  teaching  learning  process  of  the seventh grade students at SMP N 1 Moyudan.
4. Dialogic validity
Dialogic validity means that the researcher always having dialogues with the collaborator and the teacher in reviewing what had done in the classroom. In this
research the researcher had dialogues  with  the  collaborator to  review the  actions so that she could plan better lessons for the next meetings. She also had a dialogue