Title Growing out of the experience: How subjective experiences of effort and learning influence the use of interleaved practice Summary This study examines how students choose between blocked and interleaved practice with a specific focus on their subjective experiences of effort and learning. Additionally, it tests the effectiveness of a novel instructional tool called visual feedback prompts in promoting the self-regulated use of interleaving. 150 self-claimed students recruited from Prolific participant pool. The experiment was designed and conducted on Qualtrics. Data Description 1. Quantitative Data • Ratings of Perceived Effort and Perceived Learning • Classification Performance • Learning Strategy Beliefs • Learning Strategy Choices • Mediation Analyses: Mediation • Regression slopes for Perceived effort and learning.

1. Qualitative Data • Reasons using blocked and interleaved practice • Answers to prompt questions in the visual feedback. • Thoughts on the utility of Visual Feedback.

2. Codes • Str. Strategy Choices in a chronological order. (1,2,3) -Binary coded 1: Blocking; 2 Interleaving • PE. Perceived Effectiveness (Strategy Beliefs), B indicating for blocking and I indicating for Interleaving. Chronologically ordered. • Feedback: Whether they received the intervention or not. - Binary coded 0: No; 1 Yes • Classification Performance: Labelled with the names of the artists: -Binary coded 0 : Incorrect; 1: Correct