15
materials, such as text extracts and illustrations. A portfolio assignment is an instrument which is very well suited to the assessment of independent
learning and enables the student to illustrate his or her teaching competencies.
In addition, Barton and Collins in Supranata book mentioned some essentials characteristics of portfolio assessment. Those are authentic,
dynamic, explicit, integrated, ownership, and goals.
30
4. Principles of Portfolio Assessment
In education, portfolio can be used for the teacher to know the development of the student in the certain time. In portfolio file, the teacher
collect physic evidence and student’s achievement notes such as test result, assignment, group task and practice. Portfolio can be used as formative
assessment or summative assessment.
31
In this case, portfolio involves students in assessment process.
Related to the statement above, as a formative assessment, portfolio used to monitor students’ development and to increase their motivation in
learning reflection. PLP Ditjen Depdiknas states that there are some aspects should be concerned in portfolio assessment. They are mutual trust,
confidentiality, joint ownership, satisfaction, and relevance.
32
Figure 2.1. The Principles of Portfolio Assessment
30
Dr. Sumarna Supranata and Dr. Muhammad Hatta, Penilaian Portfolio: Implementasi Kurikulum 2004, ......, p. 121.
31
Jack C. Ricards and Willy A. Renandya, Methodology in Language Teaching: An Anthology of Current Practice, ......, 10
th
edition, p. 339.
32
Drs. Zaenal Arifin, M.Pd, Evaluasi Pembelajaran: Prinsip, Teknik dan Prosedur, Bandung: PT. Remaja Rosdakarya, 2009, p. 202.
The Principles of Portfolio Assessment
Mutual trust Confidentiality
Satisfaction Relevance
16
a. Mutual Trust Portfolio is two ways assessment among the teacher and the students
and also among fellow students. In this case, the teacher and the students must have a trust. The teacher has to create conducive learning
activities and good assessment so that the students easily show their ability as the teacher wants.
b. Confidentiality Students „evidence have to be kept in an order archive. It has not to be
shown to the other students before their performance. This point is purposed who get low score instead of the weaknesses to the other.
c. Joint Ownership It means all students work and document is belong to students and
teacher. So that it have to be saved in one place properly. d. Satisfaction
All documents in order to reach competence standard, basic competence, and indicator should satisfy all components, teacher, parents, and
students. e. Relevance
The document in portfolio file is relevance with the competence standard, basic competence and indicators.
In addition, Supranata stated three principles in portfolio assessment, creating conducive teaching, reflecting, and optimality process and result.
And the students are given an opportunity to reflect their work together in order to comprehend their selves and to overcome their learning problems.
33
5. Purposes and Functions