G. Checking of Data Validity
The researcher verified data by using triangulation of the data based on theories of the research. Here, the researcher compared the research findings with
the theories that used in this research. The theories in this research focused on types of error and sources of error in error analysis theory. Based on Dullay’s
theory, they are Misformation of Passive Verb; Active Order But Passive Form; Absent or Wrong Preposition Before; Passive Order But Active Form and Making
Intransitive Verbs Passive. Based on the research findings of the research, the data is valid because
there is mutual meaning between data interpretation and theories. It can be proved that the respondents make errors in Misformation of Passive Verb; Active Order
But Passive Form; Absent or Wrong Preposition Before; Passive Order But Active Form and Making Intransitive Verbs Passive.
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CHAPTER IV RESEARCH FINDINGS
This chapter discusses and presents about research findings that includes the data description, analysis and interpretation.
A. Description of the Data
The writer gave a 20-item test to students which focused on Passive Voice in Past Tense. The writer analyzed each students’ error in student’s answer
based on Ellis’ steps, they are Collecting of the sample of learner language,
Identifying the errors, Describing of errors, then Explaining the errors. The data of identifying the error is obtained in Appendix 1.
By analyzing the students’ answer sheets, the writer obtained their common error in the following table:
Table 4.1 Recapitulation of Type of Error No.
Type of Error Frequency
Percerntage
1. Misformation
217 86.8
2. Absent or Wrong Preposition Before
19 7.6
3. Passive Order but Active Form
6 2.4
4. Making Intransitive Verbs Passive
8 3.2
Based on the table 4.1 above, it can be concluded that the highest until the lowest frequency and the percentage of errors made by students derives from
Misformation of Passive Verb with 217 errors or 86.8, Absent Or Wrong Preposition Before with 19 errors or 7.6, Making Intransitive Verbs Passive
with 8 errors or 3.2 and Passive Order but Active Form with 6 errors or 2.4.
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