2. Evaluation on the Design
The data for the evaluation were divided into two categories. The first category was about the respondents’ opinions that were shown statistically. The
second one was the respondents’ comments and suggestions that were explained in sentences.
a. Descriptive Statistics of Respondents’ Opinion on the Designed Materials
To calculate the data from questionnaires, the writer used three major measures of central tendency proposed by Brown and Rodger, namely: ”mean,
median and mode” Brown and Rodger, 2004:128. The mean, median and mode were usually used to describe the average performance among a group of scores.
The writer counted the mean of the respondents’ answers. The mean or average point
X was obtained by counting the sum of the respondents’ answer ∑x
divided by the number of the respondents N. The formula was:
Note:
point average
the X
x = the sum of respondents’ answer N
= the number of respondents To calculate the data, the assessment of the respondents’ opinion toward the
designed materials used “Likert Scale”, in which the respondents were asked to register their responses on 5 points of agreement, namely:
N x
X
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1 = if the respondents strongly disagree with the statement
2 = if the respondents disagree with the statement
3 = if the respondents neither agree or disagree or the respondents do not know
or doubt 4
= if the respondents agree with the statement 5
= if the respondents strongly agree with the statement
Table 3.1: The Format of Descriptive Statistic of the Respondents’ Opinions blank
Frequency of the Point of Agreement
Central Tendency No
Statement N
Mean Median
Mode
In the preliminary field testing, the data showed whether the designed materials were good and acceptable or not. The assessment of the mean is
classified as follows: 0.0
X 2 = the designed materials were poorly designed 2.01
X 3 = the designed materials were fairly designed 3.01
X 4 = the designed materials were good, but need crucial revisions 4.01
X 5 = the designed materials were well designed and acceptable, but need few revisions
b. Respondents’ Comments and Suggestions
The writer made all lists of their respondents’ comments and suggestions, which included their comments on the strengths, weaknesses, and their
suggestions on the designed materials. The writer made the improvement based on the respondents’ comments and suggestions.
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