Improving the Quality of Numeracy Skills: Progressing from Level 2 to Level 4 on the PIAAC Cycle 2 Proficiency: An ETS Return on Investment Study: Phase 1

This research memorandum highlights the collaborative efforts of the numeracy panel for the ETS Return on Investment (ROI) Study, Phase 1, comprising David (Dave) Tout, Kees Hoogland, and Javier Díez-Palomar, in developing their research memorandum, Improving the Quality of Numeracy Skills: Progressing from Level 2 to Level 4 on the PIAAC Cycle 2 Proficiency Scale. This memorandum captures the expert opinions of the panel sessions. Suggested citation: Tout, D., Hoogland, K., & Díez-Palomar, J. (2025). Improving the quality of numeracy skills: Progressing from Level 2 to Level 4 on the PIAAC Cycle 2 proficiency scale: An ETS return on investment study, Phase 1 (Research Memorandum No. RM-25-02). ETS.