Students using Amplify Fractions were administered pre- and posttests to assess their growth in fractions knowledge. Results of these tests were analyzed to address the following research questions:
- What are the psychometric properties of the pre- and posttest forms?
- To what extent did Amplify Fractions users demonstrate growth in fractions knowledge?
- Was increased usage associated with more fractions knowledge growth?
- Was fractions knowledge growth explainable by the simple passage of time rather than usage?
These questions focus on whether students demonstrated growth, and whether that growth was reasonably attributable to using Amplify Fractions.