The primary objective of this study is to develop a valid and reliable multiple-choice assessment tool to measure seventh-grade students' achievement in the topic of "electric circuits," with a focus on the processes involved in test development. This study was conducted using survey design, one of the quantitative research designs. In pursuit of this objective, the researchers initially identified the aims of the test, the dimensions to be measured, and the learning outcomes, which led to the creation of 50 test items. Expert opinions were sought and incorporated, resulting in a refinement of the test to encompass 47 items. The revised 47-item test was then administered to a sample group of 273 eighth-grade students. To ensure test validity, an achievement table was prepared. The internal consistency of the test was assessed using Cronbach's alpha reliability coefficient, which yielded a value of 0.89, with an average item discrimination index of 0.44 and an average item difficulty index of 0.45. Subsequent analyses culminated in the development of the "Electric Circuits Academic Achievement Test," comprising 32 items, which is considered a valid and reliable measurement tool readily deployable by educators and experts. Researchers aiming to develop a valid and reliable, high-quality achievement test may opt for multi-stage multiple-choice tests instead of singular multiple-choice formats and may consider increasing the sample size to enhance population representativeness.