Development and Validation of Performance Assessment Instrument in Making Standart Solutions for Titration Nadya Rahmania (a), Harry Firman (b), Nahadi (c)
Indonesia University of Education (a,b,c)
Abstract
Performance assessment in the instrument laboratory had been required to identify the students^ competency objectively. This research aimed to provide a performance assessment instrument in making standart solutions for titration. The method was the development and validation through 4 stages: planning, development, validation, and evaluation. The validation results collected by the expert team described that among 23 valid assessments, the 18 were valued CVR 1, and the rest were invalid with value CVR below the critical point (0.736). Meanwhile, the overall Assessment validations were valid with a CVI value of 0.83. Based on questionnaires on several analitical chemistry teacher instruments, they all agreed that performance assessment, which had been developed, was effective and feasible to use.
Keywords: Performance Assessment, Task and Rubric, Standart Solutions, Titration
