in unit 3 in which 1 task belongs to warm-up activity, 18 tasks belong to main lesson and 1 task belongs to homework.
5. Expert Judgement
The next step after developing the materials is asking an expert to evaluate the first draft of the materials. This step is usually called as expert judgement where
the expert gives his evaluation and validates the materials whether they are already appropriate enough or not. The expert judgment was conducted by distributing
questionnaires adapted from Standard of Course Book Assessment for Vocational High Schools by BSNP. The questionnaires consist of four aspects related to
materials evaluation:
content appropriateness,
language appropriateness,
presentation appropriateness and layout appropriateness. The four aspects are evaluated through Likert-scales with the range of four options: Strongly Agree,
Agree, Disagree, Strongly Disagree. The questionnaire then distributed to an expert who is credible and capable
in evaluating materials. The expert is a Doctor and is a permanent lecturer of English Education Department of Yogyakarta State University. Considering the
experience of the expert, the result of the materials evaluation is considered reliable and valid.
The result of materials evaluation is presented in descriptive statistics, in which the answers from the expert are characterized into numerically coded
questions Brown, 2001. The following explanations describe the result of expert judgement and the description of revision.
1. The Result of Expert Judgement Unit 1 a.
The Content Appropriateness
The first aspect is evaluated was the appropriateness of content. Table 4.22 shows the analysis of the content appropriateness of Unit 1.
Table 4.19 The Content Appropriateness of Unit 1
No Items
Score
1 The developed materials are in accordance with Standard of
Competence and Basic Competencies of Vocational High School Grade X 1.3. Describing things, people, characteristics,
time, days, months, and year 4
2 The developed materials are relevant to students’ daily life
3 3
Materials text, figures, and tables are relevant to the topics being discussed.
4 4
The developed materials are in accordance with the needs analysis for students computer and networking program grade
X 4
5 The developed materials provide recent technology issue
4 6
The developed materials are in accordance with students’ target competence
3 7
The developed materials contain knowledge about life skill 3
8 The developed materials contain appropriate types of texts for
students’ needs 3
9 The developed materials lead the students to understand the
social function of the discussed text 4
10 The developed materials lead the students to understand the
generic structure of the discussed text 4
11 The developed materials lead the students to understand the
linguistic features of the discussed text 4
Mean 3.64
It can be seen that the mean of the appropriateness of content is in the range of 3.50
≤x≤4 which can be categorized as Very Good. The chosen topic which is around computer products and peripherals is considered relevant to the standard
competence and students’ daily lives.
b. The Appropriateness of the Presentation
The second aspect to evaluate is the appropriateness of the presentation of the materials. The following table shows the results of the presentation
appropriateness of Unit 1.
Table 4.20 The Appropriateness of the Presentation of Unit 1
No Items
Score
12 The developed tasks are well organized, systematically graded, grading from the easiest task up to the most difficult task.
3 13 There is good balance among the tasks in a unit with the tasks in the
next unit 3
14 The developed tasks encourage students to perform written communication effectively
4 15 The developed tasks encourage the students to be creative
4 16 The developed tasks encourage students to learn independently
3 17 The developed tasks contain guided activities and free guided
activities 4
18 The developed materials provide evaluation form for the students to check their understanding
3 19 There are warm up activities, main activities, and closing in the
developed materials 3
20 The developed materials contain opening activities, main activities, and closing activities
4 21
The materials contain vocabulary that is related to the topic of the unit
4
Mean 3.5
The presentation appropriateness has a mean 3.5 which in the range of 3.50
≤x≤4. The aspects of presentation such as tasks organization and task grading are considered good by the expert.