Acid Strength Concept Inventory (ACID I)
Purpose
The ACID I assesses students’ alternative conceptions related to acid strength.
Population
The ACID I is commonly administered in university organic chemistry courses that teach about acid and bases.
Example question:
Validity
Study describing the validation process for the ACID I:
LaKeisha M. McClary & Stacey Lowery Bretz (2012) Development and Assessment of A Diagnostic Tool to Identify Organic Chemistry Students’ Alternative Conceptions Related to Acid Strength, International Journal of Science Education, 34:15, 2317-2341, DOI: 10.1080/09500693.2012.684433
Bretz, S. L., & McClary, L. (2015). Students’ understandings of acid strength: how meaningful is reliability when measuring alternative conceptions?. Journal of Chemical Education, 92(2), 212-219.
Research
We recommend using Google Scholar to find the most up-to-date studies that use the instrument.
Example LASSO Report
Please follow this link to our example report for concept inventories.