The Development of Problem-Based Learning Test Instruments for the High School Physics Problem Solving Skills

Year 2019, , 1037 - 1053, 15.12.2019

Ahsan Abdulfattah , Supahar Supahar

https://doi.org/10.17478/jegys.602291

Cited By: 1

Abstract

Problem solving skills are an important part of
physics learning in schools and is also useful for adapting to the environment.
Problem solving skills are also a demand for education in the 21st century, so
having this skills can help to compete in gaining experience in this all-modern
world. This study aimed to determine the feasibility of the developed test
instrument in terms of content validity and reliability. The test instrument
developed was in the form of multiple choices with a total of 25 questions. The
analysis of content validity of the test instrument was conducted using the
Aiken's V Coefficient. The empirical validity and reliability of test
instrument were estimated using the Classical
Test Theory (CTT) and Item Response
Theory (IRT). The results of this study showed that the test instrument
developed was valid with Aiken's V Coefficient ranging between 0.76 to 0.95 and
reliable with a reliability value according to CTT of 9.5, while the developed
questions were stated reliable according to the IRT if used by the students
with the ability ranging between -1.2 to 3.8 in logit scale. Based on the
results of the study, the instrument developed was feasible to be used as an
instrument for testing problem solving skills.

Keywords

validity, reliability, test instrument, problem solving skills

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