Jurnal Bahasa Inggris | This experimental study aimed at investigating the effect of Problem Based Learning and Performance Assessment on reading and writing competencies of the tenth grade students of SMAN 1 Mengwi in the academic year 2011/2012. This research applied 2x2 factorial design. 96 students were selected as sample through random sampling. Data of students’ reading and writing competencies were collected by using essay tests. The students’ answers were scored by using analytical scoring rubric. The acquired data were analyzed statistically by Multivariate Analysis of Variance (MANOVA) at 5% significance level. This research discovers:
1) there is a significant effect of Problem Based Learning which occurs simultaneously and separately on students’ reading and writing competencies,
2) there is a significant effect of performance assessment which ocurs simultaneously and separately on students’ reading and writing competencies,
3) there is a significant interaction between teaching model and assessment type on students’ reading and writing competencies which occurs simultaneously,
4) there is no significant interaction between teaching model and assessment type on students’ reading competency, and
5) there is a significant interaction between teaching model and assessment type on students’ writing competency.
Keywords: Problem Based Learning, Performance Assessment, reading competency, writing competency
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