Related Experiment Video
Updated: Sep 21, 2025

Measuring the Behavioral Effects of Intraocular Scatter
Published on: February 18, 2021
Dataset for measuring the conceptual understanding of optics in Rwanda
Kizito Ndihokubwayo1, Michael Ralph2, Irénée Ndayambaje1
1African Center of Excellence for Innovative Teaching and Learning Mathematics and Science (ACEITLMS), University of Rwanda College of Education (URCE), Kayonza, P.O Box 55 Rwamagana, Rwanda.
Abstract:
This dataset is an accumulation of data collected to test Rwandan physics students' conceptual understanding of light phenomena and to assess instructional tools for active learning of optics. We collected and analysed data from 251 grade 11 (senior 5) students using our Light Phenomena Conceptual Assessment (LPCA) tool and from 136 grade 10 (senior 4) students using Geometric Optics Conceptual Understanding Test (GOCUT) in 2019. Before collecting data, we designed and validated LPCA and GOCUT, and tested their reliability. Data were collected before and after students learnt about the unit of light. Both day and boarding schools in rural and urban areas were included in our sampling. Data collected were test scores from students after performing a 30-item LPCA test or 25-item GOCUT test in 40 minutes. The data may be reused to extend students' understanding of optics concepts through item analysis, analysis of school characteristics such as location and school type, or by analysing students' characteristics such as subject combinations.
Related Concept Videos
Focusing of Light in the Eye
Uncertainty in Measurement: Reading Instruments
Problem Solving: Dimensional Analysis
Visual System
Once through the pupil, the light passes through the lens, a...
Imaging Biological Samples with Optical Microscopy
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
Vision

