After I defined the population, a sample was selected because the population was too large to be observed. Sample is a subset of individuals from a
given population Nunan, 1993: 25. According to Mursid Saleh 2001: 33, sample is a group of people, goods, or about place of data is taken. Sample is a
part that is assumed to represent a population. A good sample is one that representatives the condition of population which is selected.
However, if the population is too big to investigate, reaching the purpose by investigating the sample is sufficient. He also says that there are many
techniques in taking the sample. They are simple random sampling, systematic random sampling, stratified random sampling and cluster random sampling.
Cluster random sampling will be used in this study because it saves time to analyze the data obtained from the whole population. After gaining the
population, the sample in this research is two classes in SMP Negeri 2 Kendal, one as the control group and the other one as the experimental class
3.6 Research Variables
Most research is conducted in order to explore the strength relationship between variables. Nunan 1993: 25 states that a variable is anything doesn’t remain
constant. In this research, the variables of British Council Animation learning model towards students’ mastery in writing narrative. Hence, the variables here
are dependent and independent variable. 26
3.6.1 Dependent Variable
Dependent variable which is the independent variable is acting Nunan, 1993: 25. Based on the definition, dependent variable in this research is the students’
achievement score in the writing test.
3.6.2 Independent variable
Nunan 1993: 25 states that “independent variable is variable that experimenter expects to influence the other. Based on the definition above, the independent
variable of this research is the use of British Council Animation techniques in teaching writing narrative”.
3.7 Instrument for Collecting Data
In this study, the writer presented some procedures to carry out the research as follows. The data is collected by doing some test.
A test is group of questions or exercises or other instruments used to measure skill, knowledge, inelegancy, talent belonged to individual or group
Arikunto, 2006: 150. According to Aqib 2008: 96-97, test requirements belong to good quality that is the questions should valid and reliable. Valid means every
instrument only measure a dimension or aspect. It must measure what it is supposed to measure. Reliable means every instrument could give exact and
accurate result of measurement. In order to produce a valid and reliable material exam, the questions maker should formulate the latticework and write the question
based on its principal of writing questions 27
