S. Ahmad, A.K. Kenedi, Masniladevi, Y. Ariani, I.K. Sari
The background of this research is the absence of standard instruments that can measure the ability of high-level thinking in students on learning mathematics. The objective of this research is to produce valid, practical, and effective devices that can measure the strength of high-level thinking of the students majoring in elementary school teacher of education. This research is development research. The development steps of this research are theoretical analysis, formulating the operational definition, the determination of the contract, the dimensions and indicators, the preparation of the grid, the development of the items, the analysis of legibility and social desirability, field trials and data analysis. This research uses validation sheet, questionnaire and item. Based on HOTS instrument validity test 85.50% with the very valid category. Practicality test result from lecturer percentage is 87% with convenient category and student percentage 84.50% with the practical category. The effect of the HOTS student instrument assessment from the first trial to the second trial increased by 23% indicates a positive change in the students' HOTS ability. Therefore, the HOTS instrument is declared effective. HOT instruments for elementary school teacher of education students are consequently valid, practical and effective. This research implicates research can be used as a standard instrument of thinking ability of high-level students of elementary school teacher education. © Published under licence by IOP Publishing Ltd.
Universitas Negeri Padang, Jl. Prof Dr. Hamka Air Tawar, Padang, Indonesia; Universitas Samudra, Jl. Meurandeh, Langsa, Indonesia; Universitas Riau, Jl. Simpang Baru, Pekan Baru, Indonesia
