@article{UNY24891,
       publisher = {Program Pascasarjana Universitas Negeri Yogyakarta},
            year = {2014},
         journal = {Seminar Nasional dan Temu Alumni Peran Pendidikan dalam Pembangunan Karakter Bangsa},
           title = {THE COMPARISON OF ITEMS? AND TESTEES?ABILITY PARAMETER
ESTIMATION
IN DICHOTOMOUS AND POLITOMUS SCORING
(STUDIES IN THE READING ABILITY OF TEST OF ENGLISH PROFICIENCY)},
          author = {Retnawati Heri},
        keywords = {dichotomous scoring model, politomous scoring model, Reading, Test of
English Proficiency (TOEP)},
        abstract = {This study aimed to compare the testees? ability estimation in the politomus and
dichotomous scoring model. The data used in this study are the responses of testees to the
Test of English Proficiency (TOEP) set 1 in reading subtest, which are usually scoring in
dichotomous model then they are scoring in politomus model. In the reading subtest of
TOEP, in one text presented several items related to the text. In the dichotomous scoring,
each item is scored one by one item. As alternative, every item item is scored using
dichotomous model separately, but for every text, the acquisition of these items are added to
the score attained politomous model. The estimation of items? and abilities? parameter in
dichotomous scoring were done using the Rasch models and in the politomous scoring were
done with partial credit models using QUEST software. Comparative analysis of the two
models are seen based on the average results of the estimated difficulty level, graphical
analysis, calculating the correlation, and the results of the value of information function. The
results of the analysis showed that the average item difficulty dichotomous scoring model is
0.486 with a standard deviation of 0.895 and the mean level of difficulty politomous scoring
model is -0.105 with a standard deviation of 0.695. The correlations between abilities of
participants using the dichotomous and the politomous scoring model is 0.94. The value of
information function in the dichotomous scoring model is higher than in the politomous
scoring models. These results indicate that the Reading of TOEP set 1,the dichotomous
scoring model is better than the politomous scoring model.},
             url = {http://eprints.uny.ac.id/24891/}
}