comments, and suggestions on the designed materials from the respondents. The explanation of the data analysis technique for the practice of the iconic model
would be presented as follows:
a. The Experts’ Opinions on the Iconic Model
In analyzing the data, the researcher used Likert scale. The data obtained in this step was about the experts‟ feedbacks, opinions, comments, and
suggestions on the designed materials that were obtained by using questionnaire. The questionnaire was divided into two categories, the first one use Likert scale
and the second one using open-ended questions. The explanation would be presented as follows:
1 The Descriptive Statistics of the Experts’ Opinion
In Likert scale, the researcher used five point scales which were Strongly Agree SA, Agree A, Doubt D, Disagree DA, and Strongly Disagree SD.
Choosing Strongly Agree SA had point of agreement which was 5. Choosing Agree A had 4 as the point of agreement. Choosing Doubt D had 3 as the point
of agreement. Choosing Disagree DA had 2 as the point of agreement. Choosing Strongly Disagree SD had 1 as the point of agreement. The second part of the
questionnaire was presented in the forms of narrative description. From the evaluation, it would be used to improve and revise the designed materials.
Table 3.6: Score and criteria of the Likert Scale
No. Criteria
Score
1. Strongly Agree
5 2.
Agree 4
3. Doubt
3 4.
Disagree 2
5. Strongly Disagree
1 PLAGIAT MERUPAKAN TINDAKAN TIDAK TERPUJI
In calculating the score to describe the result, finding the mean was needed. The formula to get mean can be presented as follows:
M = ∑x
N Note:
M = mean indicators of central tendency of the set of sources N = number of cases the number of respondents
Mean of each item was categorized into certain criteria. In order to categorize the mean criteria, the ideal mean Mi and ideal standard deviation
SDi should be obtained. Widyoko 2014: p. 238 provides the interpretation of point of agreement which is presented on a following table:
Table 3.7: Mean Criteria Formula Widyoko, 2014: p. 238 No.
Interval Score Criteria
1. x xi + 1,8 SBi
Very good 2.
xi + 0,6 SBi x ≤ xi + 1,8 SBi Good
3. xi - 0,6 SBi x
≤ xi + 0,6 SBi Enough 4.
xi – 1,8 SBi x ≤ xi - 0,6 SBi Poor
5. x
≤ xi - 1,8 SBi Very poor
Note: xi =
maximum score + minimum score SBi =
maximum score - minimum score x = average score
5 = maximum score 1 = minimum score
The following table provides the conversion score of the formula provided above. PLAGIAT MERUPAKAN TINDAKAN TIDAK TERPUJI
Table 3.8: Interpretation of the Degree of Agreement Widyoko, 2014: p. 238 No. Interval Score
Interpretation
1. x 4,2
No revision 2.
3,4 x ≤ 4,2 Conduct more exploration on the existing part of the
design based on the statement 3.
2,6 x ≤ 3,4 Add more part or modify part of the design based on the
lack on the statement 4.
1,8 x ≤ 2,6 Replace the rejected part of the design
5. x
≤ 1,8 Replace almost the whole part
In this step, the data also showed whether the designed materials were good and appropriate for the students or not. In aiming to judge whether the
designed materials were appropriate or not, the researcher gave description to categorize the result. The designed materials were considered very good and
appropriate for the students if the total points were 4,2 or more. The designed materials were considered good but needed crucial revisions if the total of central
tendency was 3,4 – 4,19. The materials designed were considered enough but
need to modify part of the designed if the total number of central tendency was 2,6
– 3,39. The designed materials were considered poor and need to replace the rejected part of the designed if the total number of central tendency was 1,8
– 2,59. The materials designed were considered very poor and did not appropriate
for the students if the total number of central tendency was 1,79 or less.
2 The Experts’ Comments and Suggestions
The next step was processing the result of the open-ended questionnaire. The researcher presented the results of the open-ended questionnaire would be
presented in the form of writing paragraph. The comments and suggestions from the experts can help to improve the designed materials.
b. The Respondents’ Opinion on the Iconic Model
