Techniques of Data Analysis Validity and Reliability

d Camera Recorder Besides the three main instruments above , the researcher also used a camera, an audiorecorder, and a video recorder to get more complete data. The camera was used to capture the classroom conditions during the implementation of the actions while the recorder was used to record students‟ performances while taking part in the speaking activities and students‟ responses toward the actions that had been implemented . To record students‟ performances during pre-test and post-test, the researcher chose audio-recorder instead of video-recorder since it is less noticeable to the students so that they may act or speak as they would normally do. Table 3: Types of Data, Data Collection Techniques, and Instruments of the Research.

E. Techniques of Data Analysis

a. Qualitative Data analysis Data obtained from observations and interviews were analyzed qualitatively following the analysis model proposed by Anne Burns 2010. It consists of three steps. They are data reduction, data presentation, and inference making. First, data Data Collection Techniques Instruments Pre-test score Post-test score Test pre-test and post- test Speaking Rubric Field notes Checklists Observation Observation sheets and checklists Interview transcript Interview Interview guidelines Photographs Audios Videos Documentation Camera Recorder reduction is process of transforming masses of data into a small number of summarized reports. In this step, the researcher chooses, determines the focus, simplifies, summarizes and changes the form of the data. Second, data presentation means organizing information that permits conclusion drawing by classifying all the data that has been passed the data reduction process. Finally, inference making is deciding what things mean. b. Quantitative Data analysis The researcher analyzed data from pre-test and post-test quantitatively by using descriptive analysis in the form of mean score . In this way, the students‟ scores in pre-test and post-test were compared to see the improvements of the students‟ speaking skills.

F. Validity and Reliability

Invalidity is demonized: it is both insidious and pernicious as it can enter at every stage of a research. Cohen, Manion, and Morrison, 2000: 115. That is why minimizing invalidity and maximizing validity is very important to reduce contamination of data collection and analysis. Anderson 1994 in Burns 1999: 161-162 lists five types of validity.They are democratic, outcome, process, catalytic, and dialogic validity. This research used all the types which are presented as follows. a. Democratic validity Dialogic validity was done by accommodating the participants‟ voices. Here, the researcher involved them in decision making. She listened to others and considered their opinions about everything related to the research. It was impossible to satisfy everyone in decision making so the best thing she could do was minimizing the disappointment. She also tried to represent multiple perspectives of all of the individuals in the study accurately. b. Outcome validity Outcome validity was achieved by the improvement of students‟ speaking skills. Here, the action of using comic strips led to the successful resolution of the problem. The achievement of the outcome involved not only problem solving but also appearing new questions related to the research. c. Process validity To get the process validity, the researcher observed and noted every single thing happened when the implementation of the research to see how the process was going then reflected on the collected data. In addition, she ensured the suitability of the data collection technique and strategies by looking the data from different perspectives. d. Catalytic validity The validity is related to how the research brings changes to every party that is involved. For the English teacher, she got knowledge how to teach speaking with various activities. For the students, they found that learning English was fun. e. Dialogic validity Dialogic validity was done by having dialog with the English teacher, peer collaborators, and the students to review what the researcher had done. By looking for the success and weakness in the research, the next action could be improved. Meanwhile, the trustworthiness was obtained from the triangulation technique. Hence, the researcher looked at the situation being studied from more than one perspective. She employed three forms of triangulation which are described as follows. a. Time Triangulation The data were collected over period of time. It was done to get a sense of what factors were involved in thechange process. The process was not seen in a discrete activity but as a comprehensive activity which would be different from each other in particular time. b. Data Triangulation To fulfill data triangulation, the researcher used several data sources as evidences like interviews, observations, and visual data recorded. In this case, the same data were collected with different techniques. She did that to back up her claims in the discussion and conclusion in this action research. c. Investigator Triangulation In this form of triangulation, the researcher involved more than one observer. She invited the English teacher and peer collaborators to the class. It was done to avoid bias or subjective observations.

G. Research Procedures