Solis, Daniel, David Hutchinson, and Nancy Longnecker. “Visual Discrete Format: An Alternative to Likert-Type Formats of Survey Items Sensitive Enough to Measure Small Changes in Stable Constructs Such As Self-Concept in Science ”. International Journal of Cognitive Research in Science, Engineering and Education (IJCRSEE) 10, no. 2 (August 31, 2022): 1–16. Accessed April 17, 2026. https://ijcrsee.com/index.php/ijcrsee/article/view/1861.