for teaching writing of descriptive text
membantu saya dalam mengatasi kesulitan dalam
menulis Descriptive Text.
9
Pembelajaran menggunakan teknik Give One, Take One
lebih menyenangkan dari pada pembelajaran biasanya.
5. Relevancy of Give One, Take
One Technique to be applied in teaching writing
6 Teknik Give One, Take One
sangat cocok digunakan dalam pembelajaran menulis
desciptive text.
10 Pembelajaran menggunakan
teknik Give One, Take One perlu digunakan dalam
kelas-kelas selanjutnya.
3.4.4 Try out of the test
In order to find out whether the instrument of collecting data is proper to be used as a means to collect data, the writer does try out test. Try out test was conducted
in the same population but outside of the control and the experimental groups. The criteria of good instruments are valid and reliable.
3.4.4.1 Validity
Grondlund in Brown 2004: 22 explains that “validity of a test is the extent to
which inferences made from assessment results are appropriate, meaningful, and useful in terms of the purpose of the assessment”. Validity can be defined as the
degree to which a test measures what it supposes to measure.
In content validity, a test is said to have high content validity if each item, which is used to gather the data, has relevance to established criteria or objectives
and covers representative materials, that is about writing descriptive text. So, I use content validity and match the instrument to curiculum which is used in SMA N 1
Purwodadi that is ”kurikulum 2013”. 3.4.4.2
Reliability According to Brown 2004: 20 A reliable test is consistent and dependable. If you
give the same test to the same student or matched students on two different occasions, the test should yield simillar results. In this research, to find the
reliability of the test, the writer uses interrater reliability, the formula as follows: r =
Before calculating r-value, the value of standard deviation and the correlation between two raters have to be found out first. The test is reliable if r-
value r-table. The formulas can be stated as follows:
√
And the formula to calculate the correlation between the two raters is: r
xy
=
In which: Sx
: standard deviation of rater 1 My : mean score of rater 2 Sy
: standard deviation of rater 2 r
xy :
correlation between 2 raters X
: student‟s score of rater 1 r : intrarater reliability
Mx : mean score of rater 1
n : number of raters
Y : student‟s score of rater 2 N : number of students
Brown, 2005: 187
3.5 Method of Collecting Data
