Checking of Data Validity

The causes of error according H. Douglas Brown is more suitable in this study that are interlingual transfer, intralingual transfer, context of learning and communicative strategies. Based on the error occurences, the writer divided the errors that occured from the highest into the lowest frequency: a. Misfomation of the Passive Verb The highest frequency of error is Misformation of Passive Veb meaning that the students did grammatical error in morpheme and structure. Almost all of the students did it with the total error is 217 or 86.8. The highest frequency and percentage show that the students were confused in forming the active into passive sentence. Misformation category is too broad area in the classification of error types, therefore the writer would like to divide the Misformation of Passive into seven classifications based on students’ answer sheet. The recapitulation result is presented in the following table: Table 4.2 The Recapitulation of Misformation of Passive No. Classification of Misformation of Passive Frequency Percentage 1. Verb 3 71 2. Pronoun 53 3. Subject – Object 50 4. Be 16 5. Ommision 12 6. By Phrase 11 7. Addition 4 Based on the table 4.2 above, it can be concluded that the highest until the lowest frequency and the percentage of errors in Misformation Error made by students derives from Verb 3 71 errors or 32.8, Object Pronoun 53 errors or 24.5, Subject – Object 50 errors or 22.7, Be 16 errors or 7.4, Ommision 12 errors or 5.6, By Phrase 11 errors or 5.1 and Adittion 4 errors or 1,9. The following table shows some sentences which are classified from misformation of Passive Voice, further sentences see the Appendix 2: Table 4.3 Misformation Error Sentence Explanation and correction 1. Verb 3 Active sentence: She showed them the new baby Passive sentence: They were shown the new baby by her It should change the active into passive sentence. The verb 3 of the sentence is incorrect. It should be revised: They were showed the new baby by her 2. Pronoun Active sentence: They take her to the hospital Passive Voice: Her was taken by them to hospital It should change the active into passive sentence. The object of the active sentence become subject in the passive sentences and if the object of the active sentence is the object pronoun, so the subject in the passive sentence should become personal pronoun. The sentence is incorrect because the object of the sentence does not become personal pronoun in passive sentence.