Analysis of the Science Creative Thinking Ability Test Instrument at Elementary Level: Judging from its Validity and Reliability

Abstract

The aim of this research is to produce a valid and reliable Creative Thinking Ability Test
Instrument that can be used in teaching and learning activities. Teachers are still at the stage of
providing questions from student worksheets and have not yet developed instruments to assess
students' creative thinking abilities. The research design uses Borg and Gall's research
development which is reduced to the fifth stage including (1) potential and problems, (2) data
collection, (3) product design, (4) design validation, (5) design revision. The data collection
technique used is a validation sheet given to the validator. Data analysis for validity follows
Aiken's V formula, while reliability is assessed using Borich's reliability coefficient formula. The
research results show that the validity of the instrument in terms of content, construction and
language falls into the categories of valid, valid and very valid, respectively. This shows that the
critical thinking ability test instrument is suitable for use. The reliability of the instrument
produces results of 78% which are categorized as reliable. This is the strength of this instrument
so that it can be used to measure creative science thinking abilities at the elementary level. In
line with this, the creative thinking skills test instrument that has been created can be used for
research.