Teacher performance assessment is one of the methods that can determine the quality of teaching and learning process.
Therefore, standardized teachers’ assessment instruments need to be established so that the quality of the information delivered to
the students is meaningful. This study aims to assess the validity and reliability of ISO Test towards the performance assessment
of future Physical Education teachers in teaching and learning process. The study includes three evaluation criterias, that are
input, strategy and outcome during the teaching and learning process. ISO Test is built based on the Professional Circular No.
3/1999 and Description of Physical Education (Curriculum Development Centre, 1999) Ministry of Education. The findings
show that the validity of the ISO Test is r = .80 (N = 36). The reliability is based on the percentage of agreement between the
examiners (interobserver agreement) ISO Test is 70.11% (SD = 0.57). The results shows that ISO Test is suitable to be used as a
standard instrument to evaluate the performance of future Physical Education teachers in the teaching and learning process, in
line with the National Education Philosophy to produce human balance in physical, emotional, spiritual and intellectual aspects.