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a. The Dimension of the Rubric Table 12.
The Evaluation Result of the Dimension of the Rubric No.
Statements Scores
ƒ
Expected Score N
Percentage P
1. Each dimension covers important parts
of the final student performance. 5
5 100
2. The dimensions are clear.
4 5
80 3.
The dimension distinctly different from each other.
3 5
60 4.
The dimensions represent skills that the student
knows something
about already.
4 5
80
Total score 320
Average score 80
Table 12 shows that the mean value related to the dimension aspect of the rubric was 80. It means that the dimension of this rubric is good.
b . The Descriptions of the Rubric
Table 13. The Evaluation Result of the Descriptions of the Rubric
No. Statements
Scores
ƒ
Expected Score N
Percentage P
1. The descriptions match the dimensions.
5 5
100 2.
The descriptions are clear and different from each other.
3 5
60 3.
The descriptions are equal with the scores.
4 5
80 Total score
240 Average score
80
63
Table 13 shows that the mean value related to the descriptions aspect of the rubric was 80. It means that the descriptions of the rubric is good.
c. The Overall Rubri c
Table 14.
The Evaluation Result of the Overall Rubric No.
Statements Scores
ƒ
Expected Score N
Percentage P
1. The rubric can be understood by
external audiences avoids jargon and technical language
3 5
60
2. The rubric reflect teachable skills.
5 5
100 3.
The content of the rubric is well- presented give the clear definitions of
what should be measured when assessing the students.
4 5
80
4. The rubric inform the student about the
evaluational procedures when their work is scored.
5 5
100
5. The rubric indicates ways to improve
for the students. 4
5 80
Total score 420
Average score 84
Table 14 shows that the average score of the overall rubric was 84. It means that the overall rubric is good.
d . The Fairness of the Rubric
Table 15. The Evaluation Result of The Fairness of the Rubric
No. Statements
Scores
ƒ
Expected Score N
Percentage P
1. This rubric is fair to all students and
free of bias. 4
5 80
2. This rubric is useful to students as
performance feedback. 4
5 80
Continued
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Continued No.
Statements Scores
ƒ
Expected Score N
Percentage P
3. This rubric is applicable to various
speaking tasks. 4
5 80
Total score 240
Average score 80
Table 15 shows that the average scor of the fairness of the rubric was 80. It means that the fairness of the rubric is good.
Considering all the score given by the expert above, the total average score of the rubric can be presented on the table below.
Table 16. The Total Average Score of the Rubric
Aspects Score
Dimension 80
Descriptor 80
Overall Rubric 84
Fairness 80
Total 324
Average 81
It is shown that the the total average score of the rubric was 81 which means that the rubric is good and ready to be applied.
6. The Try-Out
The rubric was tried out to the two instructors of Jogja English who were responsible to a class of 9 students and a class of 10 students. The try-out was
done on January, 20th 2015. Those two instructors were given the instruction to use the rubric in scoring the final test in the prior day. After that, before the
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