THE DESIGN OF STUDENT MATHEMATICAL REPRESENTATION INSTRUMENT ON PROBLEM SOLVING REVIEWED FROM INTROVERT-EXTROVERT PERSONALITY
N Selvia (a*), AAR Awaludin (a), FR Andrari (a)

(a) Universitas Indraprasta PGRI, Jakarta, Indonesia

Abstract

This study aims to determine whether the instrument to be used is feasible or not to obtain research data. The research instrument used is the introvet-extrovet personality test in the form of a questionnaire of 17 statements and math-type problem-solving test as much as 2 types of problems that is the type of problem of TPM I and II. The feasibility test of the introvet-extrovet personality instrument includes content validity, differentiation, and reliability. While the feasibility test of the mathematical problem solving test instrument only used the validity of the content. For the validity of the contents of each test, conducted through expert judgment is the assessment made by experts. The number of respondents who took the test for the instrument test was 35 students, which is the junior high school level students in East Jakarta. The results of the instrument feasibility test show that: 1) Introvet-extrovetional personality instruments have 17 statements that are eligible to retrieve the research data, and 2) The mathematical problem solving test instrument with linear equation system material is feasible to use with some revisions of the expert judgment.

Keywords: Instrument Design, Introvet-Extrovet Personality, Mathematical Problem Solving.

Topic: Teaching and Learning in Science, Technology, Engineering, and Mathematics