1. Roediger & Karpicke (2006):

• https://doi.org/10.1111/j.1745-6916.2006.00012.x

2. The Testing Effect (Karpicke & Blunt, 2011):

• https://www.science.org/doi/10.1126/science.1199327

3. Generative Processing / ICAP (Chi, 2009):

• https://doi.org/10.1111/j.1756-8765.2008.01005.x

4. Transfer-Appropriate Processing (Morris et al., 1977):

• https://doi.org/10.1016/S0022-5371(77)80016-9

5. Hypercorrection Effect (Butterfield & Metcalfe, 2001):

• https://doi.org/10.1037//0278-7393.27.6.1491

6. The FSRS Algorithm (Source Documentation):

• https://github.com/open-spaced-repetition/fsrs4anki/wiki/The-Algorithm

7. Memory Stability / New Theory of Disuse (Bjork & Bjork, 1992):

• https://psycnet.apa.org/record/1992-97645-002

8. The Spacing Effect (Cepeda et al., 2006):

• https://pubmed.ncbi.nlm.nih.gov/16719566/

9. Sleep-Dependent Consolidation (Walker & Stickgold, 2006):

• https://pubmed.ncbi.nlm.nih.gov/16318592/

10. Working Memory / 7±2 (Miller, 1956):

• https://psychclassics.yorku.ca/Miller/ (Open Access) or https://doi.org/10.1037/h0043158

11. Cognitive Load Theory (Sweller, 1988/2010):

• https://doi.org/10.1207/s15516709cog1202_4

12. Desirable Difficulties (Bjork, 1994):

• https://bjorklab.psych.ucla.edu/research/ (Official Lab Page) or https://psycnet.apa.org/record/1994-98152-009

13. Interleaving Practice (Kang, 2016):

• https://www.unh.edu/teaching-learning-resource-hub/sites/default/files/media/2023-06/itow-interleaved-training-and-category-learning-kang.pdf

14. Dual Coding Theory (Paivio, 1971):

• https://psycnet.apa.org/record/1972-23087-000

15. The Frayer Model (Frayer et al., 1969):

• https://files.eric.ed.gov/fulltext/ED034604.pdf (Direct Link to ERIC Archive)

16. Comprehensible Input (Krashen, 1982):

• http://www.sdkrashen.com/content/books/principles_and_practice.pdf (Official free version)

17. Zone of Proximal Development (Vygotsky, 1978):

• https://www.jstor.org/stable/j.ctv1199115