Promising, with puzzles still to solve: a commentary

The study: A commentary on four case papers on deliberate practice supervision (Brand et al., Husby, Sacks and Rosén), placed in the context of research on therapist effects.

What they found: The author notes that traditional supervision often misses chances to practice specific skills and turn reflection into action. She raises open questions: whether deliberate practice supervision improves client outcomes, whether knowing about a skill really fails to translate into doing it, whether the approach relies too much on the supervisor knowing what should change, and how it applies to a two-person process like therapy.

Why it matters for practice: An even-handed read. Deliberate practice supervision is promising and should be pursued with sobriety.

Nissen-Lie, H. A. (2026). Deliberate practice in psychotherapy supervision: A promising paradigm for enhancing clinical effectiveness even if we still have puzzles to solve. Journal of Clinical Psychology. https://doi.org/10.1002/jclp.70043