Reduced Frequency of Knowledge of Results Enhances Motor Skill Learning - Winstein, C. J.; Schmidt, R. A. (1990)
quasi-experiment; evidence grade C

Meta-analysis of the reduced relative feedback frequency effect on motor learning and performance - McKay, B.; Hussien, J.; Vinh; M.-A.; Mir-Orefice, A.; Brooks, H.; Ste-Marie, D. M. (2022)
meta-analysis; evidence grade B

Meta-Analytic Findings of the Self-Controlled Motor Learning Literature: Underpowered, Biased, and Lacking Evidential Value - McKay, B.; Yantha, Z. D.; Hussien, J.; Carter, M. J.; Ste-Marie, D. M. (2022)
meta-analysis; evidence grade B

Does Mental Practice Enhance Performance? - Driskell, J. E.; Copper, C.; Moran, A. (1994)
meta-analysis; evidence grade C

Does mental practice still enhance performance? A 24-year follow-up and meta-analytic replication and extension - Toth, A. J.; McNeill, E.; Hayes, K.; Moran, A. P.; Campbell, M. (2020)
replication; evidence grade C

Physical practice, mental practice or both: a systematic review with meta-analysis - Jiménez-Díaz, J.; Chaves-Castro, K.; Morera-Castro, M.; Portuguez-Molina, P.; Morales-Scholz, G. (2023)
meta-analysis; evidence grade C

Effect of Motor Imagery Training on Motor Learning in Children and Adolescents: A Systematic Review and Meta-Analysis - Behrendt, F.; Zumbrunnen, V.; Brem, L.; Suica, Z.; Gäumann, S.; Ziller, C.; Gerth, U.; Schuster-Amft, C. (2021)
review; evidence grade D